Application of enzyme with proteolytic activity of "Sinbenza® DP 100" for birds in the egg laying period

Abstract

Introduction. It is known that the condition of the intestine is greatly influenced by diet. There is a wide range of available feed ingredients that vary in both cost and quality of nutrients. To make the most efficient use of raw materials and optimize the structure of the recipe, there are additional tools that help ensure constant profitability of farms. "Sibenza® DP100" from Novus is a feed additive that contains a highly stable thermostable protease.

The goal of the work. To evaluate the long-term cost-effectiveness of the drug "Sibenza® DP100" in the diet of laying hens in two different doses, as well as to determine the effect of the additive on the absorption of nutrients and evaluate the quality and safety of egg.

Materials and methods of research. 240 laying hens of the High Line Brown cross were randomly selected and divided into three groups of seven heads per cage (ten replicates per group). From the peak of laying (24th week) to the end of the experiment (48th week, only 168 days), the birds of both groups received a standard diet. "Sibenza® DP100" was added to the feed of laying hens of the experimental groups: the first - at a dose of 250 g per 1 ton, the second - 500 g per 1 t. Analogs of the control group consumed only the standard commercial diet.

Results of research and discussion. In the analysis of feed and manure it was found that the use of the drug "Sibenza® DP100" at a dose of 250 and 500 g per 1 ton of feed had a positive effect on its absorption. This is expressed in the improvement of the coefficients of digestibility of dry matter, nitrogen, organic matter and gross energy. At the end of the experiment, the bird, in the diet of which was added for feeding the drug "Sibenza® DP100", the live weight was dominated by individuals of the control group: respectively 85 g (with the addition of 250 g per 1 ton of feed) and 22 g (with the addition of 500 g per 1 ton of feed). In addition, the absorption rate of dry matter (7 and 8,6 %), nitrogen (42 and 57 %), organic matter (6 and 9 %) and metabolic energy (5 and 5 %) significantly improved in the diet. 9 %). During the determination of carotenoids and mass fraction of fat in the yolks, it was found that all samples of selected eggs from 3 batches contain an acceptable amount of substances, which indicates a good and balanced feeding of laying hens.

Conclusions. 1. It was found that the productivity of laying hens of experimental groups that received a diet with the addition of "Sibenza ® DP100" at a dose of 250 and 500 g per 1 ton of feed was higher than in control groups in which the diet did not use protease. 2. Therefore, during the determination of carotenoids and mass fraction of fat in the yolks, it was found that all samples of selected eggs from 3 batches contain an acceptable amount of substances, which indicates a good and balanced feeding of poultry.