Authors: E. V. SHATSKIKH, doctor of biological sciences, professor, head of the department of animal feeding, examination of feed and food products,
O. A. SHEVKUNOV, specialist in scientific and technical information, Ural State Agrarian University (42 K. Liebknekhta Str., 620075, Ekaterinburg)
Keywords: ProStor, fodder additive, broiler chickens, feeding, feed costs, average daily gain, livestock safety.
Abstract. The article discusses the results of the scientific and economic experience on the inclusion of the probiotic preparation ProS- tor in various dosages in the ration of broiler chickens, depending on the growing period. ProStor is a fodder supplement of the new generation, which is a complex consisting of enzymes, probiotics, prebiotics and medicinal herbs. Its use provides for the biosecurity of the organism, increasing the productivity of animals by improving the conversion of feed, stimulating the metabolic and immune processes of the body. On the basis of the experiment, it was established that in broilers that received Prostorus in the feed, the live weight at the end of the growing period was more than in the control group by 3.5–10 %, the average daily gain on average during the fattening period exceeded the control by 6.4 %, the safety of the poultry population increased by 1.0–2.5 %. In the experimental groups of birds, the feed costs per 1 kg of live weight gain decreased by 0.6–2.9 %. The European productivity index, as an indicator of the efficiency of growing broilers, was of the greatest importance in 1 experimental group: above the reference level by 34.1 points. Additional income per head planted when ProStor was introduced into the diet of broiler chickens was 5.84–16.74 rubles. Because of the obtained results of the experiment, it is established that the best scheme for using ProStor is its inclusion in the compound feed for 0.75 kg / ton during the technological cycle of cultivation.
