Results of using some probiotic products in broiler chicken diets

Abstract

Poultry meat has valuable properties as it contains all the major nutrients and biologically active substances in an easily digestible form. Every year, its production increases both in Russia and in West Siberia. The largest share in the poultry meat is broiler chicken meat. Of all the factors affecting poultry performance, the most significant are feeding conditions. Recently, much attention has been paid to probiotic products. Probiotic products are microorganisms useful for animals when introduced in adequate doses. The research goal was to study the effect of some forms of probiotic products on broiler chicken performance. The study was conducted on the poultry farm of the OOO “Kuzbasskiy broiler” on broiler chickens of the Hubbard F-15 cross. Three trial groups of 251 chickens were formed; the first group was the control and received the basic diet which met the established requirements in terms of nutritional value. The second trial group received an experimental probiotic at a dose of 1 g per kg in addition to the basic diet. The third trial group received the probiotic product A2 at a dose of 5 g kg in addition to the basic diet. The experiment lasted until the age of 38 days. The chickens were kept in cages. At the beginning of the experiment, the live weight in the trial groups was almost the same and was at the level of 41.9-42.3 g (p ≤ 0.95). At the end of the experiment (the age of 38 days), the live weight in the second and third trial groups exceeded the control by 0.5 g (p ≤ 0.95) and 3.1% (p ≥ 0.95). The survival rate in the experiment was at the level of 98.0-100.0%. In the third trial group, the survival rate was the highest and amounted to 100.0% which was by 2.0% higher than in other groups. Feed consumption in the groups was at the level of 1.70-1.65 kg per 1 kg of weight gain. The consumption was the lowest in the third trial group – by 3.51% lower than in the control. The greatest economic effect was obtained in the third trial group where the probiotic product A2 was tested and which amounted to 2500 rubles from the trial flock.