Exchange (uptake and synthesis) of amino acids in the digestive tract of cattle when used in diet different ingredient composition of the feed

Abstract

Materials characterizing the role of digestive tract in amino acid metabolism are obtained based on studies assessing the effect of diets with various sources of protein (fish meal, sunflower meal). A number of metabolic regularities (synthesis and assimilation) of amino acids in the digestive tract of an animal follow from the data obtained by us. Сhyme inflowing from the stomach into intestine, contains 1.5-2 times more amino acids, compared with the number of them in the diet. Consequently, the same amount of basic amino acids can be synthesized in the process of digestion of ruminants. Most of amino acids from chyme is digested in the intestine. The actual amount of amino acids digested and included in the metabolism of animal was significantly higher than their content in the eaten dietand reached 108.1 - 148.9% of that received with the diet.