TECHNOLOGICAL ASPECTS OF IMPROVING THE PRODUCTIVE QUALITIES OF HOLSTEIN BLACK-AND-WHITE COWS USING PLEUROTUS OSTREATUS GRAIN MYCELIUM

Polskikh Svetlana Valeryevna, Gryzlov Valery Aleksandrovich

The present study examines the effect of the grain mycelium Pleurotus ostreatus grown on oats of the Skakun variety on the productive and physiological parameters of calves of the black-and-white Holstein breed. The positive dynamics of the average daily increase in body weight and improvement of blood biochemical parameters were established in the experimental group of animals receiving mycelium as part of the diet. The scientific novelty lies in the assessment of the effect of P. ostreatus mycelium as a functional feed additive in the early postnatal period. The results obtained indicate the high biological value of the drug and its potential in technology to increase the productivity of young cattle.

Keywords:black-and-white Holstein breed; Pleurotus ostreatus; mycelium; productivity; weight gain; blood biochemistry; feed additive