Effectiveness of the use of a symbiotic preparation feeding broilers

Abstract

The article presents the production technology and the results of using a symbiotic preparation based on the E. coli strain VL-613 as a lysine producer in poultry farming. In the practice of feeding productive animals and birds, the problem of lysine deficiency is solved by introducing components of animal origin into the type of diet, as well as synthetic or microbial lysine. A symbiotic preparation (trade name “Proliser”) was produced by periodic controlled deep cultivation of E. coli VL-613 strain in a nutrient medium, based on the Hottinger’s overcook, the concentrated bacterial mass was mixed with a protective medium and cool dehumidificated for long-term retention of biological properties. The E. coli VL-613 strain is able to multiply in the digestive tract of farm animals and birds, can synthesize lysine up to 6.0 μg/cm3, and is not pathogenic to animals and birds. The symbiotic preparation was treated to Cobb-500, Avian-48 and Smena-7 cross broiler chickens by unsoldering or applying to feed pellets. The use of the “Proliser” preparation allowed to increase viability, average daily weight gain and the yield of category 1 meat in broiler chickens, as well as reduce the yield of low-grade meat. The results of tests on a large number of poultry population of poultry farms in the Moscow region showed, that the use of the “Proliser” symbiotic preparation will allow to completely replace synthetic lysine in feed diets for broilers of highly productive crosses.