Authors:
N. I. ZHENIKHOVA, assistant professor,
URAL STATE AGRARIAN UNIVERSITY (42 K. Liebknechta, 620075, Ekaterinburg)
Abstract. The use of probiotics in the poultry industry allows to assess the prospects of its productivity from new positions. Probiotic Monosporin favourably differs from all known analogues by broader spectrum of action and a new drug application with high content of active viable microorganisms. The basis of this drug is a valuable industrial strain of Bacillussubtilis 090, which has high antagonistic properties against pathogens of intestinal infections: gram-negative – of the genera Klebsiella, Escherichia, Salmonella, Proteus, Pseudomonas; gram-positive – Staphylococcus, Streptococcus. Due to the high activity in the suppression of pathogens can be used as a prophylactic and therapeutic agent. The drug is safe for birds at any dose, while maintaining the poultry products safe for humans, unlike antibiotics. Monosporin also has a number of advantages – addiction-resistant pathogenic microflora, easily soluble in water and are safe to use, cost-effective in comparison with antibiotics and other probiotics. Probiotic preparations are one of the promising group of pharmacological agents, the most widely used in the poultry industry. The article presents our studies on the morphological changes in the liver upon introducing Monosporin into the diet of broiler chickens. Research was conducted on the Sredneuralsk poultry farm, macroscopic and microscopic methods were applied. Two groups have been formed (experimental and control). Broilers of the experimental group were given probiotics on the basis of Bacillus subtilis in the dose of 0,03 ml per chicken per day. The comparative morphology of liver of chickens of control and experimental groups (with introduction of Monosporing into the diet) demonstrates prevention of dystrophic and inflammatory processes and increase in weight and activity of a liver.
Keywords: liver, probiotic, metabolism, morphology.
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