Authors: E. V. Shatskikh, O. V. Molokanova
Ural State Agrarian University, Ekaterinburg, Russia E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract.The inclusion of exogenous enzymes in the diet of broilers is increasingly intensified in order to maximize the use of nutrients in the body of the bird and reduce feed costs. The strategic use of enzymes should be carried out with the correct input of these feed products, since the use of inadequate (high) nutrient matrices, i. e. recalculation of the diet with high energy and amino acid loss, can weaken the effect of the enzyme on the poultry’s productive qualities and even neutralize the planned benefits from their inclusion. In our scientific and economic experiment, we studied the effect of the proteolytic enzyme „Enzinat Grow 125“ on the productivity and morpho-histological state of the duodenum of broiler chickens. It has been established that the addition of „Enzinat Grou 125“ protease in addition to the basic diet of broiler chickens without compromising nutritional value on raw protein and digestible amino acids, has a positive effect on maintaining the integrity of intestinal villi, which probably allows the bird to assimilate more nutrients to feed, contributing to an increase in productive indicators and effective feed consumption per 1 kg increase in live weight. The use of „Enzinate Grow 125“ in the diet with a decrease in nutritional value of raw protein and digestible amino acids in accordance with the matrix by 2.5 % is characterized by high live weight of broiler chickens, low feed conversion, good duodenal morpho-histological condition. The use of „EnzinatGrow 125“ in diets with a decrease in nutritional value in accordance with the matrix by 5 and 7.5 % for raw protein and digestible amino acids in the totality of the studied parameters was not effective.
Keywords: enzymes, protease, broiler chickens, the morphology of duodenal nutrient matrix, live weight, feed conversion.
For citation: Shatskikh E. V., Molokanova O. V. Kormovaya dobavka proteoliticheskogo deystviya v sostave kombikorma dlya tsyplyat-broylerov [Feed additive proteolytic action in the composition of feed for broiler chickens] // Agrarian Bulletin of the Urals. 2019. No. 8 (187). Pp. 50–54. DOI:10.32417/article_5d908d82c66c44.30527886. (In Russian.)
