ksubci

Estrus Intensity Matters: Using Heat Activity to Improve Reproductive Success

September 11, 2026September 2, 2026by ksubci

This episode is sponsored by Estrotect and features Dr. George Perry from Texas A&M AgriLife, who discusses how estrus intensity influences reproductive performance in beef cattle and how producers can use that information to improve breeding decisions. While many producers think of estrus as a simple yes-or-no event, the discussion highlights that the intensity of estrus, measured by mounting activity or other indicators, can provide valuable insight into fertility. Calves and cows that exhibit stronger estrus prior to fixed-time artificial insemination consistently achieve higher conception rates than those showing weak or no signs of estrus.

The conversation explains that estrus remains important even in synchronization and fixed-time AI programs, where breeding occurs on a set schedule. Research has shown that cattle displaying estrus before insemination can have conception rates more than 20 percentage points higher than those that do not. This information can help producers make more strategic decisions about which animals receive sexed semen or higher-value genetics.

The group also emphasizes that management factors such as nutrition, body condition score, postpartum interval in cows, and puberty status in heifers often have a greater influence on estrus expression than genetics alone. Advances in estrus detection technology, including activity monitors and improved heat-detection aids, now provide producers with more detailed information than traditional visual observation methods.

Ultimately, the discussion concludes that estrus intensity is not merely a biological curiosity but a valuable management tool. By combining sound nutrition, synchronization protocols, and improved estrus detection, producers can make better breeding decisions that improve conception rates, calf performance, and the long-term productivity of the herd.

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Solving the Toxicology Mystery: A Systematic Approach to Vague Cattle Health Problems

September 7, 2026September 2, 2026by ksubci

This episode focuses on some of the most challenging cases veterinarians encounter: cattle with vague signs such as weight loss, poor condition, or an unexplained death where no obvious cause is apparent. Dr. Scott Fritz explains that these situations are often far more difficult than classic acute poisonings because there is rarely a clear syndrome, exposure event, or obvious diagnostic clue. Instead, investigations must begin with a thorough history, careful necropsy, and a detailed evaluation of management changes, environmental conditions, forage availability, and grazing patterns.

The discussion highlights the importance of considering toxic plants while recognizing that simply finding a toxic plant in a pasture does not prove it caused disease. Weather conditions, grazing pressure, herbicide use, mowing, drought stress, and seasonal plant growth can all influence the likelihood that cattle consume potentially toxic species. The speakers also emphasize the value of examining rumen contents, collecting representative samples, and working closely with diagnostic laboratories to choose appropriate tests rather than ordering broad, unfocused toxicology screens.

Special attention is given to ocular fluid sampling, which can serve as a useful substitute for blood testing after death and help diagnose conditions such as nitrate poisoning. The episode explains that successful toxicology investigations rarely rely on a single laboratory result. Instead, diagnosis usually comes from combining clinical signs, animal history, environmental observations, necropsy findings, pathology results, and targeted laboratory testing.

A key takeaway is that toxicology cases are often diagnoses of exclusion, requiring patience and collaboration among veterinarians, diagnosticians, toxicologists, botanists, and producers. By taking a systematic approach and preserving high-quality samples early in the investigation, producers and veterinarians improve their chances of identifying the true cause and preventing future losses.

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High Cattle Prices, Smart Investments, and Getting Started in the Cattle Business

September 4, 2026August 20, 2026by ksubci

This episode focuses on how producers can take advantage of strong cattle prices, both by improving existing operations and by helping the next generation enter the industry. The discussion begins with ideas for reinvesting profits into long-term improvements such as water systems, fencing, grazing infrastructure, land enhancement projects, and other investments that may take years to fully pay off but can improve productivity and quality of life on the ranch.

The hosts also explore diversification strategies, including alternative livestock enterprises, hunting-related income, and other complementary businesses that can provide revenue streams not directly tied to cattle markets. A key theme is balancing short-term opportunities with long-term sustainability through careful planning and strategic investments.

The conversation then shifts to the challenges facing young people who want to enter the cattle industry during a period of historically high cattle values. The group emphasizes that aspiring producers do not need to start large and should instead look for ways to leverage labor, management skills, and relationships to gain access to cattle, land, or grazing opportunities. Examples include leasing cattle, custom grazing stocker cattle, entering partnerships, or gradually building an operation through small-scale opportunities.

The hosts stress the importance of developing a written business plan, understanding costs and potential revenue, and seeking advice from experienced professionals such as lenders, extension agents, veterinarians, nutritionists, and other producers. Building strong personal networks and identifying mentors can be just as valuable as obtaining financial capital. Ultimately, the episode encourages producers to think strategically, invest wisely during profitable times, and recognize that successful cattle operations are often built gradually through planning, patience, and strong relationships.

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Do Vaccines Affect Bull Fertility? Evaluating Breeding Soundness After Modified Live and Killed Vaccines

August 31, 2026August 20, 2026by ksubci

This episode examines a 2025 study that investigated whether modified-live or killed viral vaccines influence bull breeding soundness exam (BSE) results. The research addressed a common practical question among producers and veterinarians who are concerned that vaccination before breeding season might negatively affect fertility. Researchers randomly assigned mature bulls to receive either a modified-live or killed vaccine and then evaluated semen quality and breeding soundness multiple times over a full spermatogenesis cycle.

The study found no statistically significant differences between vaccine types for key fertility measures such as sperm morphology and motility. These findings suggest that neither vaccine type caused major detrimental effects on reproductive performance in the mature bulls that were tested. However, the discussion highlights an important limitation: the study included only 11 bulls, making it difficult to detect smaller but potentially meaningful differences between treatments.

The authors and hosts note that while some bulls consistently passed breeding soundness exams and others consistently performed poorly, these differences appeared to reflect individual animal variation rather than vaccine effects. The episode also raises questions about whether results would be similar in yearling bulls, which may respond differently than mature animals.

Overall, the study provides reassuring evidence that vaccinating mature bulls with either modified-live or killed viral vaccines does not appear to cause major fertility problems. At the same time, the discussion emphasizes that additional research with larger numbers of bulls is needed to rule out smaller effects and strengthen confidence in the conclusions.

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Maintaining Beef Demand and Building the Next Generation Workforce

August 28, 2026August 20, 2026by ksubci

This episode explores two important topics for the beef industry: long-term consumer demand for beef and strategies for workforce development. The discussion begins with a listener question about how changing cattle inventories, feed costs, and finishing weights could affect beef quality and consumer demand in the future. The hosts note that while heavier cattle and extended feeding periods have contributed to quality improvements, genetic progress has played an even larger role in maintaining high levels of marbling and eating satisfaction. They emphasize that taste, freshness, safety, and price remain the key drivers of beef demand, making it essential for producers to continue delivering a high-quality product.

The group also discusses how shifts in feed costs and cattle numbers may influence production decisions, but they do not expect a dramatic decline in beef quality because of the industry’s long-term genetic improvements and management practices. Food safety and Beef Quality Assurance programs are highlighted as critical components for maintaining consumer trust and protecting demand.

The second half of the episode focuses on labor shortages and workforce development in agriculture. Rather than expecting to hire fully trained employees, the hosts encourage producers to view workforce development as an investment, recognizing that inexperienced workers require training, mentorship, and time to become productive. They recommend creating internship or trial opportunities, partnering with organizations such as 4-H and FFA, and focusing on individuals who show enthusiasm and a willingness to learn. The discussion emphasizes that successful workforce development often requires patience, realistic expectations, and a commitment to helping employees build skills over time. Ultimately, the episode concludes that both sustaining beef demand and developing future employees require long-term thinking, continuous improvement, and a willingness to invest in future success.

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Rethinking Vitamin A in Beef Cattle: Why Calves May Be Deficient Despite Green Grass

August 24, 2026August 20, 2026by ksubci

This episode explores the role of vitamin A in beef cow-calf systems and examines why some calves develop low vitamin A levels and respiratory disease even while grazing alongside cows on green pasture. The discussion highlights that vitamin A nutrition is more complex than simply having access to lush forage, because cattle primarily consume beta-carotene from grass, which must be converted into usable vitamin A by the body.

A major takeaway is the importance of colostrum as the primary source of vitamin A for newborn calves. Because very little vitamin A is transferred across the placenta, calves are born with limited reserves and depend heavily on colostrum intake during their first hours of life. Research cited in the review shows that delays in colostrum consumption can negatively affect vitamin A status for weeks after birth.

The discussion also challenges long-standing assumptions about vitamin A requirements. Current beef cattle recommendations are largely based on research conducted decades ago, despite major changes in cattle genetics and productivity over time. Recent studies suggest that supplementation levels commonly considered adequate may not be sufficient to maintain optimal vitamin A status in modern cows or their calves.

One particularly striking finding is that even when cows received vitamin A supplementation at nearly three times traditional recommended levels, about 20% of calves still failed to achieve adequate vitamin A status. The authors suggest that late gestation nutrition deserves greater attention because maternal vitamin A status strongly influences the amount transferred through colostrum. Overall, the episode emphasizes that vitamin A management remains an unresolved area in beef production and may play a larger role in calf health and disease resistance than previously recognized.

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Finding Value in Every Class of Cattle: Records, Flexibility, and Management Decisions

August 21, 2026August 14, 2026by ksubci

This episode features Nebraska cattle producer Rylee Blomenkamp, who discusses how her family’s operation manages a diverse mix of cattle, including feeder calves, yearlings, bred cows, open cows, bulls, and other opportunistic purchases. A central theme is the importance of identifying value in different classes of cattle and adapting management strategies to changing market conditions. Rylee explains that their operation succeeds by remaining flexible and taking advantage of opportunities that arise in local auction markets rather than focusing on a single type of livestock.

The discussion highlights the role of detailed recordkeeping in evaluating profitability across multiple enterprises. Rather than treating the operation as one large business unit, the family tracks expenses, feed costs, and returns for different classes of cattle, allowing them to determine where value is being created and which enterprises are most profitable. Experts emphasize that even cow-calf producers can benefit from separately evaluating replacement heifers, cull cows, and feeder calves to improve decision-making.

The group also discusses the importance of keeping cattle separated by age, size, and production purpose to better manage health and nutrition. Different groups require different feeding programs, health protocols, and marketing strategies, making thoughtful organization critical to success. Nutritional management is tailored to each class of cattle, from growing calves to bred cows and finishing animals, helping maximize performance while controlling costs.

A key takeaway is that successful producers combine strong records with practical experience, using both data and market awareness to guide decisions. Ultimately, the episode emphasizes that having a plan is important, but maintaining flexibility and adapting to changing conditions is often what creates long-term profitability and sustainability.

This episode is sponsored by Ambrook.

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Can Coronavirus Vaccination Reduce Pre-Weaning Respiratory Disease in Beef Calves?

August 17, 2026August 14, 2026by ksubci

This episode reviews a 2026 Canadian study that evaluated whether vaccinating beef calves against bovine coronavirus could reduce pre-weaning respiratory disease in a commercial cow-calf herd with a history of respiratory problems. The researchers compared vaccinated and non-vaccinated calves under real-world ranch conditions, making the findings especially relevant for producers facing similar challenges. Results showed that vaccinated calves had lower odds of requiring treatment for respiratory disease before turnout, and overall disease rates tended to be lower in vaccinated groups.

The study also included an economic analysis that suggested vaccination provided a financial advantage of approximately $10 per calf through reduced treatment costs, lower mortality, and improved performance. Interestingly, one of the strongest factors associated with disease risk was not vaccination status but the calf’s birth cycle, with calves born during certain calving periods experiencing significantly different disease outcomes.

The discussion highlights several strengths of the research, particularly that it was conducted in a commercial herd rather than a controlled challenge trial, providing valuable insight into how vaccines perform under field conditions. However, the hosts also note limitations, including questions about experimental independence, blinding, and the use of a coronavirus vaccine in a manner different from its labeled route of administration.

A key takeaway is that while coronavirus vaccination may offer another tool for reducing pre-weaning respiratory disease, it should not be viewed as a complete solution. The larger lesson is that herd management systems, calving patterns, and other underlying risk factors may play an even greater role in disease occurrence than any individual vaccine. Ultimately, the episode encourages producers to combine disease-prevention tools with a broader systems-based approach when addressing respiratory disease in cow-calf herds.

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Research Frontiers and Pain Management: Improving Cattle Health Through Better Decisions

August 14, 2026August 5, 2026by ksubci

This episode features a discussion with several Beef Cattle Institute researchers who share updates on current projects aimed at improving cattle health, welfare, and production efficiency. Topics include new technologies for semen evaluation, investigations into feeding patterns associated with interstitial pneumonia and liver abscesses, machine learning tools for detecting pain in cattle, and research on how water quality affects livestock performance. These projects highlight the growing role of technology and data analysis in solving practical problems faced by producers.

The group also addresses a listener question about weaning calves from large grazing allotments where producers have limited opportunities to handle animals before weaning. Rather than focusing solely on vaccines or medications, the discussion emphasizes reducing stress through strategies such as favorable weather conditions, low-stress weaning methods, gradual adaptation to feed and water sources, and thoughtful management of the overall system.

A major segment focuses on pain management in cattle and how attitudes toward animal welfare have evolved over time. The panel discusses procedures such as castration, dehorning, branding, dystocia management, and prolapse repair, noting that pain mitigation can improve welfare even when production responses such as average daily gain are difficult to measure. Researchers argue that producers should consider broader outcomes, including animal comfort, health, recovery, and public expectations for livestock care.

The conversation emphasizes that many producers genuinely want to provide the best care possible and are often willing to use pain-control tools when practical options are available. Ultimately, the episode highlights the value of systems thinking, continuous research, and proactive management in advancing both cattle well-being and industry sustainability.

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A Deadly Holding Pen: Poisoning Causes Sudden Loss of 14 Heifers

August 10, 2026August 5, 2026by ksubci

This case study examines a tragic incident in which 14 open heifers died within hours of being separated from a larger group following pregnancy testing. The heifers had been placed in a familiar holding pasture with a functioning water source and secure fencing, leading managers to initially believe the environment was safe. When all 14 animals were found dead later that day, investigators quickly ruled out infectious disease and focused on acute toxic causes due to the rapid onset and 100% mortality rate.

Potential causes considered included nitrate toxicity, cyanide poisoning, urea exposure, toxic plants, and other fast-acting toxins. Necropsies revealed few significant lesions, a common finding in animals that die rapidly from certain toxic exposures. Diagnostic testing of ocular fluid showed highly elevated nitrate levels, providing strong evidence of nitrate poisoning.

Further investigation of the holding area uncovered several nitrate-accumulating plants, including pigweed, kochia, and sorghum-type grasses, all containing nitrate concentrations high enough to cause acute death. Environmental conditions and plant stress likely contributed to dangerous nitrate accumulation, while the hungry heifers rapidly consumed the available vegetation after being placed in the pen.

The discussion highlights that facilities used safely for years can become hazardous when weather patterns, forage conditions, or management circumstances change. A key takeaway is to carefully evaluate holding pens for potentially toxic weeds, especially during late summer, and avoid turning hungry cattle into unfamiliar areas with questionable forage. Providing supplemental hay before and during confinement may be one of the simplest and most effective strategies for preventing similar losses.

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BRD Around the World and the Economics of Creep Feeding

August 7, 2026July 29, 2026by ksubci

This episode features a discussion with guest Dr. Selwyn Headley from Brazil, who shares insights into bovine respiratory disease (BRD) and how it compares to cases seen in North America. The group notes that many of the same bacterial and viral pathogens are involved in both regions, including Mannheimia, Histophilus, and several respiratory viruses, although some differences in prevalence and diagnostic findings exist. They emphasize that BRD is best viewed as a syndrome involving multiple pathogens and risk factors rather than a disease caused by a single organism. Common stressors such as transportation, commingling of cattle from multiple sources, and feedlot arrival continue to play major roles in disease development across both countries.

The conversation then shifts to creep feeding, defined as providing feed that nursing calves can access while their dams cannot. The hosts explain that creep feeding is often considered when forage quality or quantity declines late in the grazing season and producers want to maintain calf growth. While creep feeding can increase weight gain, its economic value depends on feed costs, calf prices, forage conditions, and how much feed is actually converted into additional gain.

The panel discusses how creep feed often substitutes for forage intake rather than reducing milk consumption, meaning it may not significantly improve cow body condition. They also note that feed type matters, with high-fiber feeds typically providing better supplementation and less forage substitution than starch-heavy grain sources. Additional considerations include the impacts on replacement heifers and breeding stock, where excessive energy intake at certain developmental stages may have long-term consequences. Overall, the episode highlights the importance of evaluating both biological responses and economic returns when deciding whether creep feeding is the right strategy for a particular operation.

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The Mystery Eye Disease Outbreak: Investigating a Point-Source Event in Stocker Cattle

August 3, 2026July 29, 2026by ksubci

This case study follows the investigation of a puzzling eye disease outbreak affecting approximately 10% of a group of 1,200 stocker cattle shortly after processing and placement on pasture. The affected animals developed severe eye lesions, including corneal cloudiness, swollen eyelids, redness, and inflammation, but lacked many of the classic ulcers typically associated with pinkeye. Because cases appeared almost simultaneously across numerous pastures separated by up to 90 miles, investigators quickly determined the outbreak did not fit the pattern of a contagious, spreading disease.

Instead, the timing and distribution suggested a point-source event linked to something the cattle experienced while gathered together during processing. Common causes such as pinkeye, infectious bovine rhinotracheitis (IBR), and mycoplasma infections were initially considered, but diagnostic testing failed to identify a clear infectious agent. Necropsies, histopathology, and laboratory testing revealed unusual eye lesions but provided no definitive diagnosis.

The investigation expanded to include less common possibilities such as malignant catarrhal fever and even immune-mediated eye disease, although evidence remained inconclusive. Interestingly, the outbreak peaked about two weeks after processing and then rapidly subsided without continuing spread, further supporting the point-source theory. The discussion highlights the importance of using epidemiology, history, and case patterns to guide investigations when laboratory answers are unavailable. Ultimately, while the exact cause remained unknown, the case demonstrates how understanding disease patterns can help narrow possibilities and inform future management decisions.

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Mineral Sources, Microbiomes, and Managing Cattle Health Beyond the Basics

July 31, 2026July 29, 2026by ksubci

This episode explores two important but often misunderstood topics in cattle production: mineral supplementation and the microbiome. The discussion begins with a listener question about whether the source of minerals in a supplement matters. The hosts explain that mineral bioavailability can vary significantly depending on whether minerals are supplied as sulfates, chlorides, oxides, or organic complexes, and that not all sources are equally effective. For example, copper oxide has relatively poor bioavailability compared to copper sulfate, while other mineral sources differ less dramatically.

Resource: https://ksubci.org/tools/calculators/ “Evaluating mineral feed tags for beef cattle”

The group emphasizes that mineral needs are highly dependent on local soils, forage quality, and the presence of antagonistic compounds such as sulfur, iron, or molybdenum. As a result, selecting the right mineral program requires more than simply comparing prices and nutrient percentages on a feed tag.

The conversation then shifts to the microbiome, defined as the community of microorganisms living within and on animals, particularly in the digestive tract. These microbes play critical roles in digestion, nutrient utilization, and overall health, especially in ruminants that depend on microbial fermentation to break down forage. The hosts note that research is increasingly showing links between the microbiome and broader physiological outcomes, including metabolism, disease susceptibility, and animal performance.

They also discuss how management decisions, diet changes, stress, and antibiotic use can alter microbial populations, though many of those effects are not yet fully understood. While microbiome research remains in its early stages, the episode highlights its potential to reshape how producers think about health and nutrition, moving beyond the traditional view that all microbes are harmful and toward a more systems-based understanding of cattle production.

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Strategic Heifer Development: Can Stair-Step Nutrition Improve Puberty Rates and Reduce Feed Costs?

July 28, 2026July 28, 2026by ksubci

This episode examines a study evaluating different nutritional strategies for developing replacement heifers and their impact on puberty attainment. Researchers compared traditional low-gain and high-gain feeding programs with two “stair-step” nutritional approaches that alternated periods of higher and lower energy intake. The goal was to determine whether strategic feeding could achieve the same reproductive outcomes as intensive feeding while using fewer resources.

Results showed that the first stair-step program, which provided a higher plane of nutrition immediately after weaning followed by alternating periods of lower and higher gain, achieved puberty rates nearly identical to the continuously high-fed control group. In fact, 100% of the heifers in both groups reached puberty by approximately 13 months of age, while less than half of the low-control heifers achieved puberty during the study period. The stair-step strategy accomplished this while utilizing less feed and producing lower body condition scores than the continuously high-fed heifers.

The findings suggest that the period immediately after weaning may be especially important for influencing reproductive development. Researchers also observed unique responses in leptin levels, indicating that strategic nutritional changes may affect hormonal pathways involved in puberty onset. While the results are promising, the discussion notes that implementing a stair-step program requires careful management and dietary transitions to achieve the desired outcomes. Overall, the study highlights how targeted nutrition can potentially improve heifer development efficiency while maintaining strong reproductive performance.

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Separating Fact from Fiction: Evaluating New Technologies and Common Cattle Nutrition Myths

July 24, 2026July 16, 2026by ksubci

This episode explores how cattle producers can make informed decisions when considering new technologies, products, or services for their operations. The discussion emphasizes the importance of evaluating both costs and benefits, including upfront expenses, recurring fees, labor savings, and potential productivity gains. Producers are encouraged to use tools such as partial budgets and spreadsheet-based “what-if” analyses to determine whether a technology is likely to provide a positive return in their specific operation.

The hosts also stress that research results from other operations may not always translate directly to a producer’s own environment, making careful evaluation and limited on-farm testing valuable when possible. Examples such as virtual fencing, electronic identification systems, and feed additives illustrate the challenges of assigning economic value to both direct and indirect benefits.

In the second half of the episode, the team tackles several common nutrition myths. They explain that while lush green grass often supplies adequate energy and protein, mineral supplementation may still be necessary depending on soil and forage conditions. They also note that mineral consumption is often driven more by salt intake than by a specific mineral deficiency. Discussion of creep feeding reveals that calves frequently substitute supplemental feed for forage rather than reducing milk consumption, making the economics highly situation-dependent. Finally, the hosts clarify that overfeeding replacement heifers can contribute to calving difficulty if they become excessively fat, but moderate increases in nutrition have relatively little effect on calf birth weight. Overall, the episode encourages producers to rely on careful analysis and evidence rather than assumptions when making management decisions.

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More Than Stocking Density: How Pen Size Influences Puberty in Replacement Heifers

July 20, 2026July 20, 2026by ksubci

This episode examines a study investigating whether the physical size of dry lot pens affects the development of replacement heifers, even when animal density remains the same. Researchers compared heifers housed in a standard-sized dry lot, a larger dry lot with the same space per animal, and a pasture-based control group. While growth performance and weight gain were similar across treatments, important differences emerged in behavior, stress indicators, and reproductive development.

Heifers housed in the smaller dry lot reached puberty approximately 20–30 days later than those in the larger pen or pasture groups. The larger dry lot group, despite having the same stocking density, performed similarly to the pasture group in many reproductive measures. Researchers also observed higher cortisol levels and increased expression of stress-related heat shock proteins in the heifers housed in the smaller pen, suggesting greater physiological stress.

The findings indicate that total pen area—not just square footage per animal—may influence social interactions, stress levels, and the timing of puberty. The authors speculate that larger pens may allow animals more opportunity to avoid dominant pen mates and reduce social stress. Overall, the study suggests that facility design can have meaningful effects on replacement heifer development and that evaluating pen size may be just as important as considering stocking density alone.

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Bigger Cattle, Bigger Questions: Feed Costs, Corn Demand, and Pasture Lease Strategies

July 17, 2026July 8, 2026by ksubci

This episode tackles two listener questions with significant implications for cattle producers. The first explores how increasing cattle carcass weights affect corn demand and feed efficiency. The discussion estimates that an average increase of 36 pounds in carcass weight requires roughly 257 additional pounds of corn per animal, adding up to a substantial amount nationally, although it represents less than 1% of total U.S. corn use. Despite declining feed efficiency and average daily gain as cattle get larger, feeding cattle to heavier weights can remain profitable because a greater proportion of the added weight ends up in the carcass rather than in non-marketable tissues.

The hosts explain that heavier cattle help offset the effects of historically low cattle inventories by increasing total beef production without requiring more animals. This additional production helps meet strong consumer demand and moderates beef prices that might otherwise be even higher.

The second topic focuses on leasing cropland for pasture when improvements such as fencing, water infrastructure, and forage establishment are required. Panelists emphasize that successful pasture lease agreements begin with clear communication and should account for who pays for improvements, how long the lease will last, and what happens to infrastructure when the lease ends. They note that arrangements can vary widely, from landowners paying for materials to tenants absorbing costs in exchange for longer lease terms or reduced rental rates. Written agreements and careful financial planning are strongly encouraged to protect both parties and ensure that long-term investments can be recovered. Overall, the episode highlights how thoughtful economic analysis and upfront communication can lead to better decisions throughout the cattle production chain.

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A Deadly Feed Mixing Mistake: Investigating Sudden Cattle Deaths in a Dry Lot

July 13, 2026July 8, 2026by ksubci

This case study examines a sudden and devastating loss in which five cows and two calves died shortly after being moved to a dry lot following the calving season. The affected group consisted of only six cow-calf pairs that had been separated because they were open or had calved late, making the rapid mortality highly suspicious for a toxic exposure rather than an infectious disease. Necropsies revealed few significant findings, while the only surviving cow showed severe neurological signs, including tremors, vocalization, and an inability to stand.

Investigators focused on feed and water as the most likely sources of exposure and collected samples from the animals, feed, and environment for evaluation. During the investigation, foreign granules were discovered in the feed bunk and were ultimately traced back to agricultural pesticide residue left inside a skid steer bucket. The bucket had previously been used to handle granular pesticide from corn planting operations and was later used to deliver feed without being adequately cleaned.

The pesticide contamination explained the rapid onset of deaths and neurological symptoms observed in the remaining cow. The discussion highlights how potent agricultural chemicals can become deadly when accidentally introduced into livestock feed, even in relatively small amounts. A key takeaway is the importance of maintaining dedicated equipment for feed handling whenever possible or thoroughly cleaning equipment used for agricultural chemicals before reusing it. The case also demonstrates the value of careful history-taking and field investigation, which often provide the answers before laboratory testing is even completed.

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Is Graduate School Worth It? Navigating Career Goals, Curiosity, and Lifelong Learning

July 10, 2026July 2, 2026by ksubci

This episode focuses on the decision to pursue graduate school and explores how advanced education can shape careers in animal agriculture and beyond. Guest Maddie Manke shares her journey from taking a gap year after high school to earning a PhD, explaining how a desire to understand the science behind cattle nutrition sparked her interest in research and advanced study. The discussion emphasizes that graduate school is fundamentally different from undergraduate education, requiring students to move beyond memorization and develop critical-thinking, problem-solving, and independent research skills.

The hosts highlight that successful graduate students are often driven by curiosity and a desire to answer complex questions, even though every answer tends to generate new questions. They also stress the importance of choosing the right program, advisor, and academic environment, noting that relationships with professors and fellow students can have lasting impacts on both personal and professional development.

A recurring theme is that graduate school should be viewed as an investment in a future career rather than simply a way to delay entering the workforce. The group discusses opportunity costs, career goals, and the importance of understanding whether a desired profession truly requires an advanced degree. They encourage prospective students to visit multiple programs, talk with current graduate students, and carefully evaluate their long-term objectives before making a decision. Ultimately, the episode presents graduate school as a valuable pathway for those motivated by curiosity, lifelong learning, and careers that benefit from advanced analytical and research skills.

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Written Grazing Plans and Profitability: What Drives Adoption on Cow-Calf Operations?

July 6, 2026July 2, 2026by ksubci

This episode examines research exploring why some cow-calf producers adopt written grazing management plans while others do not. The study was motivated in part by sustainability goals aimed at improving grazing land management, soil health, water infiltration, and drought resilience through more structured planning. Researchers analyzed survey data from producers across the United States to identify factors associated with both written grazing plans and intensive grazing practices.

Results showed that larger land holdings were associated with a greater likelihood of having a grazing management plan, while larger herd sizes were somewhat less likely to adopt one. Producers using rotational or management-intensive grazing systems were also more likely to have written plans, suggesting that planning and intensive grazing management often go hand in hand. The study found relatively few strong demographic influences, indicating that adoption is driven more by management style and operational goals than by age or experience alone.

One of the most important findings was that producers with either a mental or written grazing plan were more likely to achieve positive returns over off-farm feed costs than those with no grazing plan at all. Operations that regularly evaluated and updated their plans also showed stronger economic performance. The discussion emphasizes that written grazing plans do not need to be rigid prescriptions, but rather flexible tools that help producers track forage resources, adjust management over time, and make more informed decisions. Overall, the research suggests that thoughtful grazing planning can benefit both ranch profitability and long-term resource stewardship.

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Heat Stress, Screwworm Awareness, and Making Summer Employees Successful

July 3, 2026July 7, 2026by ksubci

This episode covers three timely topics affecting livestock producers during the summer months. The discussion begins with strategies for preventing heat stress at livestock shows, where cattle face added challenges from transportation, unfamiliar environments, limited airflow, and changes in water sources. Producers are encouraged to closely monitor water intake, provide adequate air movement, and watch for warning signs such as rapid breathing or open-mouth panting.

The conversation then turns to the New World screwworm, a parasite that has received increased attention recently. Experts explain ongoing educational efforts, including webinars covering the biology of the pest, treatment options, public health implications, and potential economic impacts. A key message is the importance of regularly inspecting livestock for wounds, since screwworm infestations begin when flies lay eggs in open wounds and the larvae feed on living tissue. Producers are encouraged to stay informed through state animal health agencies and USDA resources as surveillance and response efforts continue.

The final segment focuses on managing summer employees, particularly temporary workers or students with limited experience. The hosts emphasize the value of clear communication, structured training, and safety education from the very beginning of employment. They stress that effective onboarding includes explaining expectations, providing hands-on guidance, and following up throughout the summer rather than assuming everything was understood on day one. Ultimately, the episode highlights the importance of preparation, communication, and proactive management—whether caring for cattle, responding to emerging animal health threats, or mentoring the next generation of agricultural workers.

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Heifer Selection for Profit: Why Hybrid Vigor, Longevity, and Efficiency Matter

June 29, 2026June 26, 2026by ksubci

This discussion examines a research study focused on improving long-term profitability in cow-calf operations through better heifer selection. The study used economic modeling and field data to evaluate three key factors: feed efficiency, longevity, and heterosis (hybrid vigor). Results showed that cows with greater genetic diversity consistently generated higher returns, largely due to improved reproductive performance and overall herd productivity.

Longevity also played a critical role, as cows that remained productive in the herd longer were able to spread their development costs over more calves. However, the study revealed that heterosis had a larger impact on profitability than longevity alone when multiple factors were considered together. Feed efficiency, measured as the ability to maintain condition on less forage, also contributed positively to economic outcomes, particularly during winter feeding periods.

An important takeaway is that assumptions from feedlot cattle efficiency do not always translate directly to grazing cows due to differences in diet and digestion. The discussion also emphasizes the importance of crossbreeding strategies, warning that repeatedly using similar genetics can reduce hybrid vigor over time. Overall, the episode highlights that strategic heifer selection—focused on genetic diversity, reproductive success, and efficiency—can significantly improve herd profitability over the long term.

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Adding Value and Managing Grass: Practical Decisions in Cow-Calf Operations

June 26, 2026June 26, 2026by ksubci

This episode of Cattle Chat focuses on practical management strategies for improving profitability in cow-calf operations, driven largely by listener questions. A major topic centers on how to add value to cull cows, emphasizing that even though calf sales make up most revenue, cull cow income is still significant. Experts discuss options like breeding open cows before sale, combining them into a single group, or simply adding weight through grazing or feeding to improve market value. Timing decisions based on forage availability and market conditions are highlighted as key to maximizing returns.

The conversation then shifts to grazing management, particularly the differences between cool-season and warm-season grasses. While rotational grazing has well-documented benefits in cool-season systems, research shows less consistent improvement in native warm-season pastures. Factors like lower rainfall, reduced fertilizer response, and greater plant diversity may explain why responses differ.

Speakers note that successful grazing management of warm-season systems often requires more flexibility and observation, blending science with practical “art.” Strategies like deferred rotation—changing grazing timing across pastures—may support long-term grass health, even if immediate livestock gains are less obvious. Overall, the discussion emphasizes tailoring decisions to each operation, using observation, records, and adaptability to balance forage productivity, animal performance, and economic outcomes.

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Saline vs. PBS: A Practical Test of Sample Collection Methods in Cattle Diagnostics

June 22, 2026June 18, 2026by ksubci

This episode explores a research study evaluating whether sterile saline can effectively replace phosphate-buffered saline (PBS) for collecting samples used in Tritrichomonas PCR testing. The discussion highlights a non-inferiority trial design, which differs from traditional statistical approaches by testing whether one method is not meaningfully worse than another. Researchers created controlled samples with varying concentrations of organisms and compared detection results using both saline and PBS.

Results showed no significant difference in detection performance between the two media, and saline met the criteria for being “not inferior” to PBS. This finding is important because saline is more readily available and easier to use in field conditions for veterinarians.

The discussion also explains how PCR cycle threshold values work and why small differences can matter depending on diagnostic cutoffs. However, the applicability of these findings depends on the specific testing method, as saline may not perform as well in DNA-based PCR due to potential degradation. Overall, the study provides practical insight into improving diagnostic efficiency while emphasizing the importance of understanding both statistical methods and biological relevance in veterinary research.

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Summer Research and Herd Management: From Vitamin Stability to Confinement Strategies

June 19, 2026June 18, 2026by ksubci

Joined by guest Logan Thompson, this episode of BCI Cattle Chat covers a wide range of topics, beginning with updates on current cattle research projects underway during the summer. Researchers discuss ongoing work in areas such as semen evaluation technology, stocker cattle supplementation, grazing system optimization, and respiratory disease investigation. A key theme is how research helps refine management practices over time, even though results often require multiple trials to confirm reliability. The conversation then shifts to a listener question about vitamin A stability, highlighting how vitamin levels can degrade over time—especially in mineral mixes—and emphasizing strategic purchasing and seasonal supplementation.

The team also discusses magnesium supplementation, noting that risk depends heavily on forage type, with cool-season grasses posing the greatest threat for deficiencies like grass tetany. They emphasize tailoring supplementation to specific conditions such as lactation stage and pasture type rather than applying blanket recommendations. Another major topic examines the feasibility of raising cow-calf pairs in confinement systems. While possible, this approach introduces challenges including increased labor, higher feed costs, ventilation requirements, and greater disease risk—especially during calving.

Experts suggest that confinement may work best when used strategically, such as outside of calving season or in combination with grazing systems. Overall, the episode stresses the importance of adapting management decisions to specific operations, balancing economics, animal health, and available resources.

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