Experimental Models of Study and Prevention of Stress in Birds in Industrial Poultry Farming

Abstract

—In birds, acute stress (a three-day 12-hour inversion of the photomode) is associated with the dominant activity of the sympathetic hypothalamus and hippocampus, which suppress the tone of the parasympathetic section and the reticular formation of the midbrain. The effect of hyperglycemia on the background of a negative chronotropic effect indicates a mismatch of the functions of the autonomic sections of the hypothalamus on the 30 th day. Chronic stress in birds (30-days crowding) causes persistent pathological stress of the functions of the anterior hypothalamus and reticular formation of the middle brain with the suppression of papasympathetic tone of the posterior hypothalamus and high functional activity of the hippocampus, determining the switching of the ventricles of the heart to a more economical mode of functioning by the 30th day. having a cholinoblocking component in the mechanism of its influence during neurogenic stress and in the post-stress period is excluded, but it is possible to use stressprotektors.