Effectiveness of different protein sources and lysine levels in diets for broiler chickens

The article highlights current data on the biological role of most crucial feed nutrients - protein and lysine in feeding broiler chickens their particular importance vital activity bird's body. A description value quality main types compound for poultry, recipes with different content specific age groups chickens, practical advice peculiarities rearing poultry are given. Current brief information amino acid additives general features more rational use various both vegetable animal origin meat crosses – grains cereal crops, processed products oil crops soy, sunflower, many other components provided. Theoretically experimentally, expediency using essential sources, differing composition bioavailability, rations has been substantiated. In particular, principles adequate broilers an increased level crude a lower described. Brief effectiveness safe levels synthetic diet based variety local feeds when growing conditions farm western region presented. It was established that significantly origins 24 %, 22 % 20 positively affects chickens' productivity. highest productivity noted broilers' first period 1,22 second 1,14 third 1,09 %. high quality, nutritional value, beneficial effects premixes directly influenced by available raw materials, mainly origin, used production farm, uniformity mixing appropriate optimal dosage acids each portion mixture.