EQN 4020 Lecture Notes - Lecture 10: Essential Amino Acid, Equine Nutrition, Carboxypeptidase B
13 Apr 2018
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Protein & amino acid nutrition (lectures 10, 11) Objectives: to familiarize the student with protein and amino acid metabolism to better understand protein and amino acid requirements in performance horses. Little knowledge on amino acid requirements; therefore, difficult to determine an ideal protein: define ideal protein. Isoleucine: leucine, lysine, methionine, tryptophan, valine, arginine, threonine, dispensable, alanine, aspartic acid, cysteine , glutamic acid, glycine, proline, serine, tyrosine , asparagine, glutamine. Inactive peptidases are secreted by the pancreas into the duodenum: trypsin, chymotrypsin, elastase, carboxypeptidase a, carboxypeptidase b. Non-protein nitrogen toxicity: circulating urea is generally nontoxic to the horse except for in high concentrations, but absorbed ammonia is highly toxic. 5 suggesting sudden blindness and abdominal pain: equivalent of ammonia toxicity is being hungover. Protein quality: protein quality is dependent upon, protein content, protein digestibility and, amino acid composition. Apparent protein digestibility = (protein intake protein in feces x 100) / protein intake.
