Influence of Forvet on the relative increase of weight and length of embryos broilers cross ROSS-308

The purpose of the study was to study the effect of the immunomodulator Forvet on the relative increase in the weight and length of the broiler cross Ross -308 embryo. The article presents the results of the effectiveness of pre-incubation treatment of eggs with 1% and 2% Forvet solutions. The experiment was carried out on the basis of a peasant farm in the Bessonovsky district of the Penza region. The experiment was based on three batches of hatching eggs of the ROSS-308 cross (I experimental, II experimental, control) of 30 pieces each, using the principle of analogues. The first experimental batch was treated with a 1% Forvet solution before being placed in the incubator, the second experimental batch was treated with a 2% solution and the control batch was not treated. For research, 5 eggs were selected from each group at 10, 12, 15, 17, 19 and 21 days of age. Selection was carried out at the same time. Embryos were weighed on laboratory scales AND DL-2000. As a result of the experiment, it was found that the greatest relative weight gain of broiler cross ROSS-308 embryos was achieved in the second experimental group – 33.3%, compared to the control, where the relative gain was 27.35%. In the first experimental group, on day 17, the embryos weighed 2.18 g less than their peers from the second experimental group, and the difference in relative growth was 3.07%. Analyzing the dynamics of the relative increase in embryo length, it was found that, with an increase in the incubation period, this indicator decreased in the 1st experimental group by three times from 31.5 to 10.47%, in the 2nd experimental group by 3.4 times from 25.91 to 7.62% and in the control group 2.61 times.