Family Farms and Production, Early Weaning, Pre-Weaning Pneumonia

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1:58 Family Farms and Production

7:08 Early Weaning Pros and Cons

14:49 Pre-Weaning Pneumonia

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Cattle Lameness

Lameness in cows, bulls, and replacement heifers is a common problem confronting cattlemen. In most situations, the problem is occurring in the foot, with occasional lesions in the shoulders, hips, knees, and other joints. Problems in the foot can be due to injury, infections, malformations of the foot, or a combination of these factors.  

One of the most common problems of cattle feet is an infection of the skin and soft tissue above the hoof known as footrot. The bacteria that causes footrot is present in soil and is very common in cattle pens. In order for the bacteria to invade the foot, a break in the skin must occur first. Injury that allows infection may be due to rocks or rough ground, crop residue stubble, or extreme dryness. Wet and muddy areas can also be a problem in that prolonged exposure to wet ground can cause the skin to become soft and more easily injured. All lame cattle should be confined in a squeeze chute where the foot can be lifted and carefully examined to make an accurate diagnosis. It is very easy to mistake a puncture wound or other problem for footrot. If identified early in the course of the disease, most cattle will respond to treatment with antibiotics with complete recovery. If the infection has had longer to invade nearby joints, recovery is less likely. Prevention of outbreaks of footrot is primarily directed toward maintaining clean pens and designing watering and feeding areas to prevent the build up mud. Occasional, individual cases of footrot are probably unavoidable and these sporadic cases should be identified and treated as soon as possible. Use of feed additives such as iodine and antibiotics have not consistently shown to be beneficial for preventing footrot.  

A disease called hairy heel warts or digital dermatitis can also occur on the feet of cattle. Most commonly, a painful raw area that can look like a wart and may have long hair-like growths is identified directly behind the heels, but the area between the toes can also be affected. This disease is common in dairy cattle herds and although it is rare in cow-calf herds, it does occur in feedlot cattle and beef cattle that are housed in a drylot or on concrete. The current theory is that two or more germs work together to cause the disease and that these organisms thrive in manure-contaminated water. Housing that minimizes the time spent standing in water is the best prevention. Footbaths with antibiotics are used for treatment in dairies.   

Lameness in cattle can also be caused by infections in and around joints by bacteria that have traveled from other infections in the body. Mycoplasma bovis is an organism that is found in the lungs of some cattle with prolonged cases of pneumonia. This organism can travel through the bloodstream and infect joints and tendons causing severe lameness. Many antibiotics do not kill the organism and treatment of cattle with lameness due to Mycoplasma bovis is often not successful.  

Lameness can be caused by injuries to the foot or leg. Puncture wounds from nails, glass, or sharp pieces of metal can cause damage to the hoof itself or to the soft tissue around the hoof. Puncture wounds are often accompanied by a great deal of swelling and may appear similar to footrot. Damaged or poorly maintained loading chutes, alleys, or fences with sharp protrusions can also injure feet and legs.  

Toe abscess are most common in calves in confinement, particularly where sorting pens are abrasive and the cattle have soft hooves. Acidosis may also be a factor, and excitable behavior is considered to increase the risk that cattle may scramble on the concrete of the treatment or processing areas causing abrasions of their toes, which allows infections to occur. Toe abscesses are treated by nipping off the tip of the toe to allow drainage, administering antibiotics, and placing the cattle in areas with clean, solid footing. Sole abscesses are less common, but more difficult to treat than toe abscesses. The sole must be trimmed and the abscess opened to allow drainage and a wooden block is glued to the opposite toe to keep the affected toe from bearing weight. Sole abscesses are most common on the inside toes of the front legs and the outside toes of the back legs and may be related to incidences of acidosis. Laminitis is the foot problem most commonly associated with acidosis. In most cases of laminitis, the cattle on are on a high-concentrate diets or on stalk fields with a lot of residual grain. Severe cases of laminitis in cowherds will result in the animal being culled. 

Structural soundness occurs in varying degrees and structural problems can cause lameness. Pigeon toes, long toes, and straight hocks are examples of some of the more common structural problems. Corkscrew hoof is a genetic problem and any animal with the condition should be culled from the breeding herd. The hind leg should have an acceptable set to the hock as viewed from the side. The range of acceptability is 120° to 155° with the ideal of 140°. The post-legged condition, when rear legs have a greater than 155° set to the hock, is a fairly common and serious skeletal defect in beef cattle. Exceptionally straight hind legs are often associated with steep pasterns and straight shoulders. The bow-legged condition of hind legs is associated with a narrow placement of the feet and a disproportionate amount of weight on the outside claw, which can lead to lameness. When evaluating front limb structure, cattle should have an adequate slope to the shoulder (45°-50°) and the legs should be acceptably straight when viewed from the side and front. Front legs that bow inward at the knees up to 10° are considered acceptable but, knees that bow outward even slightly are unacceptable.  

Cattle lameness due to footrot can usually be corrected with timely and appropriate therapy. Other infectious problems such as digital dermatitis and toe or sole abscesses are more difficult to manage, but many affected cattle can be successfully treated. Malformations in the legs or toes often have a genetic component and although treatment such as corrective foot trimming can make the cattle more comfortable, no long-term cure is available. Whenever cattle become lame, it is almost always a good idea to confine the affected animal in a squeeze chute or tilt-table that allows thorough examination so that an accurate diagnosis can be make and appropriate treatment initiated.  

Land-Grant Funding, Hay Testing, Snake Bites, Abscesses & Other Issues

Welcome to BCI Cattle Chat!  Please click on any links below to be taken to sources mentioned in the podcast. Keep an eye out for news regarding the podcast on Facebook, Twitter, and Instagram.

3:07 Land-Grant Funding

7:54 Hay Testing Yes vs. No

14:26 Snake Bites, Abscesses and Other Issues

For more on BCI Cattle Chat, follow us on Twitter at @The_BCIFacebook, and Instagram at @ksubci. Check out our website, ksubci.org. If you have any comments/questions/topic ideas, please send them to bci@ksu.edu. You can also email us to sign up for our weekly news blast! Don’t forget if you enjoy the show, please go give us a rating!

ERS Chart: Shrinking Farms, Early Pregnancy Check, ET vs. AI

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2:49 ERS Chart: Shrinking Farms

7:56 Early Pregnancy Check

15:43 Listener Question: ET vs. AI

For more on BCI Cattle Chat, follow us on Twitter at @The_BCIFacebook, and Instagram at @ksubci. Check out our website, ksubci.org. If you have any comments/questions/topic ideas, please send them to bci@ksu.edu. You can also email us to sign up for our weekly news blast! Don’t forget if you enjoy the show, please go give us a rating!

Samantha Bennett, Heat Stress and Management, Preventing Disease Entry

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2:05 Samantha Bennett

9:40 Heat stress and management

15:37 Dr. Enoch Preventing Disease Entry

Guests: Samantha Bennett, Agriculture Today Producer and Host
Enoch Bergman, Beef Cattle Veterinarian 

For more on BCI Cattle Chat, follow us on Twitter at @The_BCIFacebook, and Instagram at @ksubci. Check out our website, ksubci.org. If you have any comments/questions/topic ideas, please send them to bci@ksu.edu. You can also email us to sign up for our weekly news blast! Don’t forget if you enjoy the show, please go give us a rating!

Optimum Rangeland Management is Likely Different Depending Upon the Ecosystem

Rangelands provide many human benefits such as food production, income for rural families and communities, recreation, wildlife habitat, soil carbon sequestration, plant and animal biodiversity, and water filtration. Grazing is often assumed to negatively impact the natural ecosystem and that removal of grazing would result in more pristine rangelands. The largest driver of forage and animal productivity, and economic return is proper stocking rate, and rotational or deferred grazing do not enhance these responses. But, management intensive grazing practices allow forages to store reserves during times of abundant precipitation, increase water-holding capacity, provide wildlife habitat at critical times of rearing young, and create a shifting mosaic with both old and new growth vegetation all the while maintaining animal productivity and income for ranchers. Therefore, several management factors such as stocking rate, grazing management, and fire regime can impact the human benefits received from rangelands.

Optimum rangeland management practices may differ depending on the ecosystems, and a recent analysis evaluated the interaction of ecosystem and rangeland management system at sites across the Great Plains. A computer simulation model capable of simulating plant growth and soil processes in response to stocking rate, grazing management, and fire regime was used for this analysis. 

Increasing stocking rate resulted in increased soil erosion at Kansas and Wyoming sites, but not at Montana, South Dakota, and Nebraska sites. Additionally, timed rotational grazing increased soil erosion at Kansas sites. Annual burning of rangelands in the spring increased soil erosion at all sites except Nebraska due to less ground cover to protect the soil; however, the computer simulation was not designed to evaluate changes in the population of invasive plant species that might occur without spring burning. In contrast, timed rotational grazing decreased nitrogen losses from runoff, leaching, and volatization at all sites, but nitrogen loss was not affected by stocking rate or annual spring burning at any site. 

Soil carbon deposition among rangeland management practices was highly dependent upon site. Rotational grazing had no effect on soil carbon deposition at Kansas and South Dakota sites, increased soil carbon deposition at Wyoming site, and decreased soil carbon deposition at Montana and Nebraska sites. In general, soil carbon deposition decreased with increasing stocking rate, but was somewhat dependent upon grazing management and site. Annual spring burning drastically decreased soil carbon deposition at all sites due to the fact that the previous year’s forage residue was no longer available to enter the soil.The results of the analysis confirmed that ecosystem effects the response to rangeland management practices such that there is no one-size-fits-all management system. The optimum rangeland management system will need to be developed locally. Additionally, there will be tradeoffs that will need to be evaluated by each rancher to meet their sustainability goals.

Australian Cattle Industry and BVD

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6:42 Australian Cattle Industry

12:30 BVD
Read more here

Guest: Enoch Bergman, Beef Cattle Veterinarian

For more on BCI Cattle Chat, follow us on Twitter at @The_BCIFacebook, and Instagram at @ksubci. Check out our website, ksubci.org. If you have any comments/questions/topic ideas, please send them to bci@ksu.edu. You can also email us to sign up for our weekly news blast! Don’t forget if you enjoy the show, please go give us a rating!