The microflora in strained rumen fluid did not methylate or volatilize 203Hg2" at detectable rates. However, there was an exponential decay in the concentration of added CH3Hg', which was attributed to demethylation. The major product of demethylation was metallic mercury (Hg0), and it was released as a volatile product from the reaction mixture. Demethylation occurred under both anaerobic and aerobic conditions. The rate of demethylation was proportional to the transformation of HgCl2 and CH3Hg' by the rumen microflora. A preliminary report of some of the present results has been published (S. Kozak and C. W. Forsberg, Proc. 28th Annual Meeting of the Canadian Society of Microbiologists, abstr. no. Eli, 1978). MATERIALS AND METHODS Rumen microflora. Rumen fluid, unless stated otherwise, was obtained from either a fistulated 4year-old Holstein cow fed a ration of first-cut Timothy hay and a Shur-Gain Dry Cow and Heifer Ration
The article presents the results of studies of the effectiveness of the use of the complex probiotic preparation Immunoflor in young hens of egg cross. In the course of the research work, it was found that the use of the probiotic preparation Immunoflor does not affect the clinical and physiological state of the body of young chickens, but at the same time reduces the incidence, mortality and increases the safety of the chickens by enriching and balancing the poultry diet, reducing the conversion feed, optimization of digestion, stimulation of the development of positive microflora in the gastrointestinal tract. The use of the complex probiotic preparation Immunoflor in the diet of young chickens at a dose of 15 g/t of water and 15 g/t of feed contributes to an increase in the number of erythrocytes, leukocytes and hemoglobin concentration, activation of cellular and humoral factors of nonspecific resistance of the body of chickens, providing a normal physiological state and homeostasis.
The researches directions have been posed in the article of VNII poultry processing industry from the moment of creation: from the development of hatch-ing egg and incubator
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