Stoyanovs'kyj V. Functional status of small intestine and peculiarities of adaptation of young cattle by stress

Object of investigation: young cattle, blood, content, juice and mucus membrane of small intestine. Purpose of work: mechanisms elucidation, which form the basis of disorders of secretorial and enzymatic function of small intestine and the peculiarities of development of adaptive and compensative reactions in the organism of young cattle while stress and work upon the effective prophylactic measures for technological stress in modern stock-breeding. Methods and equipment: physiological, biochemical, haematological, spectrophotometric, radioimmunoassay; photoelectrocolourmeter, pH-meter, spectrophotometer, flaming photometer. Theoretical and practical results: it was determined that influence of pharmacological and technological stress-factors causes the similar adaptative reactions. Well-founded conception of role of the peripheric adren- and cholinergic structures in genesis of functional disorders and structure violation of mucus capsule of animals small intestine while stress. It was elaborated the mark criterion of some stress stages in organism of young cattle depending on sex and age. Phenazepame was proposed for prevention of technological stress in bulls on growing and feeding. Optimal dose and methods of their administration were determined. Physiology and biochemistry of agricultural animals, stock-breeding are the sphere of practical application our results.