The Horse

FEB 2019

The Horse:Your Guide To Equine Health Care provides monthly equine health care information to horse owners, breeders, veterinarians, barn/farm managers, trainer/riding instructors, and others involved in the hands-on care of the horse.

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Page 42 of 51 | The Horse February 2019 43 getting enough, and are you getting the right amounts of specific amino acids that will truly bring about the best muscle development in the horse?" A limiting amino acid is an essential amino acid that sometimes doesn't ap- pear in adequate amounts in a feed. A horse cannot synthesize adequate protein if he doesn't consume enough limiting amino acid. New protein will only be synthesized to the amount of the limit- ing amino acids. If the horse runs out of limiting amino acids, he can't make use of the other amino acids he has consumed. Lysine is the only amino acid that has a specific listed requirement in the NRC guidelines. For a 500-kilogram (1,100-pound) adult horse at maintenance, NRC recommends 27 grams of lysine per day, but this amount changes based on the horse's age and use. For instance, a lactat- ing mare in the first month after foaling needs 85 grams of lysine per day. Soybean meal and other seed meals are great lysine sources, says Mueller, and show up in many feed ingredient lists. Thunes says whey protein that provides the branched-chain amino acids, espe- cially leucine, will help support muscle development, as well. For some horses Mueller might recom- mend a diet ration balancer with high protein or purified amino acid supple- ments. He says the issue with supple- ments, however, is the lack of research behind them, so much of the information he has gathered is from field observations. Take-Home Message When a horse needs added bulk, in fat or muscle or both, it's crucial you make the right changes to supply the necessary dietary components to see improvements. When in doubt, an equine nutritionist or your veterinarian can help guide you through these changes. This can help eliminate expensive and unrewarding blind guesses and trial and error. h 1.800.267.5707 Provides essential Branch Chain Amino Acids (BCAA's): L-Leucine | Isoleucine | Valine Contains BCAA's and molasses to support protein synthesis For all horses requiring muscle recovery, maintenance and development Myo Power Support Healthy Muscular Performance & Recovery HIGH-PERFORMANCE HORSES NEED HIGH-PERFORMANCE SUPPORT. Size 2300g (2.3kg) SKU 445097

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