Dychok-Niedzielska A. Metabolic processes in the body, reproductive and productive capacity of rabbits under the influence of sulfur compounds.

The dissertation is devoted to the study of the influence of different amounts of sulfur citrate obtained by nanotechnology methods and sodium sulfate on the course of physiological and biochemical processes, the activity of the immune system, the growth and development of the rabbit's body after weaning; elucidation of the peculiarities of changes in blood parameters, resistance and reproductive capacity of the body of female rabbits and the preservation of their suckling rabbits under the action of physiologically justified doses of sulfur compounds; the physiological amounts of sulfur citrate and sodium sulfate in the rations of young rabbits of breed hybrids to stimulate metabolism, resistance, growth and development of the body and reproductive capacity of female rabbits were scientifically substantiated. A positive effect of sulfur citrate at the rate of 4 and 8 mg S/kg of body weight on the morphological parameters of the blood of rabbits and the immunophysiological response of the body was established. The organ-tissue features of the dose-dependent effect of sulfur compounds on the content of mineral elements Co, Cr, Zn, Fe, Cu in the blood and tissues of the liver, skin, and wool have been proven, which was more pronounced under the action of sulfur citrate in the amount of 8 mg S/kg of body weight. Sulfur citrate drinking at the rate of 4 and 8 mg S/kg of body weight was affected by an increase in body weight during the study. Despite the degree of different bioavailability, the correcting effect of sulfur citrate in the amount of 8 mg S/kg and sodium sulfate at the rate of 40 mg S/kg of body weight on cellular and humoral factors of non-specific resistance of the organism, reproductive function, milk yield of female rabbits and growth, development and preservation was established rabbits up to 40 days old. Key words: rabbits, morphological parameters, resistance, immunophysiological state of the body, mineral exchange, reproductive capacity, preservation, growth and development, sulfur citrate, sodium sulfate.