Efficiency of the use of extruded fir flour in feeding broiler chickens

Abstract

Relevance. Needles are a source of various biologically active substances for animals, including vitamins. The needles also contain phytoncides, which contribute to the suppression of pathogenic microflora in the digestive tract. A number of studies have been devoted to the development of technologies for the production of feed additives based on needlesMethodology. The research work was carried out in the experimental poultry house of «Kuzbass Broiler» LLC on broiler chickens of the Ross 308 cross. 820 heads of chickens in four groups were selected for the experiment. The poultry of the control group received complete compound feed (PC), the 1st–3rd experimental groups received extradited fir flour as part of the PC (1.0%, 2.5%, 5.0% of the weight of the compound feed). When selecting broiler chickens in experimental groups and conducting research, the methods of VNIVIP were used.Results. When feeding extruded fir flour in an amount of 2.5% of the feed volume at the stages of growing broiler chickens the highest indicators of their growth were obtained compared to the control: the absolute and average daily body weight gain is more by 5.3%. Safety increased by 1.8%, the European productivity index (EPI) increased by 35.9 units. Chickens spent 6.1% (0.11 kg) less compound feed per 1 kg of gain compared to analogues from the control group.