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RESOLVING LAMENESS CAUSES


Retired Hoof Trimmer willing to help answer your questions.
17/3/2017, 19:13 Link to this post PM via Email   PM via Forum
 
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Re: Laminitis


Three main causes.
1 Rumen Acidosis, 2 Feeding uncured silage, 3 Toxic issue with a ration component.
17/3/2017, 19:26 Link to this post PM via Email   PM via Forum
 
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Re: RESOLVING LAMENESS CAUSES


           I felt compelled to share some of my experiences with you from my career as a hoof trimmer. I happened to be at the right place at the right time and was fortunate to observe a record breaking Holstein herd that fed 20 lb. of high quality alfalfa hay and for the most part remained laminitis free over a twenty-five year period, also has remained free of digital dermatitis to [sign in to see URL] is a 400 cow herd, with only 2 to 3 lame cases per month and some months none. The cases they did have I attributed to metabolic causes.
           A researcher at UC Davis, back in about the 1980s put out a paper stating that for optimum health Holsteins need 20 lb. of alfalfa hay and Jersey’s need 15 lb. of alfalfa hay daily. The veterinarian that serviced this herd attended UC Davis. This standard has proven accurate through out my career. When I retired in 2007 most producers where feeding much less, therefore: most herds suffered from SARA at varying degrees.
The added alfalfa keeps the rumen PH neutral and stable, resulting in disease free feet, no white line disease, abbesses, or ulcers and very dense high quality hoof tissue thats resistant to insults. To make matters worse is the devaluation of alfalfa hay, from faulty computer soft ware used to calculate rations according to recent studies conducted by UC Davis.
The only exceptions that will cause laminitis regardless of how much hay is fed, is feeding uncured silage regardless if its fed to dry or lactating stock and any toxins in ration components. Young stock must also be kept SARA free, or their feet will be compromised before they come into production.
Examples: This same dairy fed uncured silage to dry cows, resulted in laminitis cases for 90 days. Stopped practice, end of problem. Same dairy suddenly went from nearly no lame cases to 25 cases per week, discovered toxic problem coming from mill, changed mills, end of [sign in to see URL] are the only times laminitis became an issue through out the last twenty five years in this herd.
Cattle are extremely susceptible to SARA, and in my opinion SARA is the main cause of laminitis, although there are numerous causes of SARA. Metabolic factors are few in this feeding scenario because the overall herd health is exceptional, the best I've ever seen. Observing this herd led me to believe that SARA is also responsible for most of the metabolic issues.
           The external factors come into play because the diseased foot has lost the ability cope, not that the external factors cause the disease, exception would be very abrasive concrete causing thin soles. The severity of laminitis is in direct relationship to how low Rumen PH has dropped and for how long.
It really comes down to this one question that many have asked. Why must it be dry hay instead of silage, fibrous fiber particle length is particle length, digestibility is digestibility, why longer corn silage fiber doesn't count or grass or alfalfa silage doesn't count?
How I've answered this question is this, because excess silage produces an excess of Volatile Fatty Acids (VFA’s) VFA’s in silage can contribute to lower pH in rumen coupled with high starch ration can increase incidents of acidosis. They can't tolerate that much fermentation, a sufficient quantity of alfalfa hay will buffer, stabilizing rumen pH.







  
18/3/2017, 0:14 Link to this post PM via Email   PM via Forum
 
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Re: RESOLVING LAMENESS CAUSES


In addition, various unusual food stuffs such as cannery waste, tomatoes ect. will cause Laminitis. Also, some pastures at certain times of the year thought to be, do too high sugar and low fiber content. Some feed a little hay prior to turn out with positive results.
30/3/2017, 23:35 Link to this post PM via Email   PM via Forum
 


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