Effect of the complex of microelements in the form of L-asparaginates on zootechnical parameters and morphometry of bone and muscle tissue of broiler chickens

Abstract

In the experiments, five groups of broiler chickens were formed at the Federal Scientific Center “All-Russian Research and Technological Institute of Poultry” of RAS. As a result of studies it was found that the use of microelement complex in the form of L-asparaginates makes it possible to reduce the addition of iron, manganese, copper and zinc to the mixed fodder by 10% -20% (of the guaranteed norms). At the same time zootechnical parameters of raising broilers remain at a high level Histological studies of bone and muscle tissue samples of broiler chickens from experimental groups showed that good bone tissue formation and muscle tissue quality were observed when mineral premixes were included in the diets. Morphometric studies have shown that in the absence of mineral premixes in the feed, the processes of osteohistogenesis are slowed down, which affects the timeliness of bone formation and its quality. Histological tests confirmed that when chelated compounds of microelements in the form of L-asparaginate are added in the mineral premix in the amount of 10%, 12.5% and 20% of the guaranteed norms of microelements input, the processes of bone tissue formation and quality of muscle tissue were not inferior to the control.