Use of fish feed complex and pine cone husks in the diets of young laying hens in the Primorsky region

The aim of the research is to study the effect of fi additives and feed additives of plant origin on the growth rates of young hens. Two scientifi and economic experiments were carried out on the inclusion of these feed additives in the composition of feed. Four groups of hens, a control and three experimental ones, at the age of 5 weeks, 150 heads in each were formed by the method of analogs to study the effect of each feed additive. The control group was fed the diet adopted on the farm, the fi experimental group received 1.5 % of the fi feed additive as part of the compound feed, the second experimental group - 3 % and the third experimental group - 5 %. A feed additive of plant origin was administered as follows: the control group received the main ration of the farm without a feed additive;, the fi experimental group received 1.5 % of the additive, the second group - 2 % and the third group - 3 %. Replacement young growth during the experiment was kept in cage batteries. The scientifi and economic experience lasted 90 days (12 weeks), according to the method (20 days using the additive, 10 days - rest). The positive effect of these supplements on the growth and development of young chickens has been proven. According to the results of the experiments, young hens of the III experimental group showed the greatest absolute increase over the period of the experiment (819.2 g), which exceeded the control by 5.7 % when using a fi feed additive. When adding nut shells of Korean pine cones, the highest average daily increase was in the III experimental group and amounted to 9.11 g. The safety of livestock was also higher in the experimental groups, but the difference was insignifi