Effect of certain probiotics on chemical composition of broiler chicken meat

Abstract

The studies on the effect of certain probiotics on the chemical composition of meat (femoral and pectoral muscles) of ISA Hubbard F-15 cross broiler chickens were carried out on the poultry farm OOO Kuzbasskiy broiler and at the Department of Specific Livestock Breeding of the Altai State Agricultural University. Five groups of 251 one-day old chickens were selected for the studies. The control group received the standard compound feed of the farm with the obligatory addition of an antibiotic drug up to the age of 33 days. The second trial group received the standard diet with the addition of an experimental probiotic supplement for farm animals at a dose of 1 kg per ton of the feed mixture. The nutrition of the third group included the Levisel SB+ probiotic while the dosage varied depending on the growing period; the pre-starter and starter compound feeds - 1 kg per t; the growing and finishing compound feeds - 0.5 kg t. In the fourth trial group, the probiotic A2 was added to the feed at a dose of 0.25 kg t. The fifth group consumed the feed with the probiotic Vitacell at a dose of 2 kg per ton of the feed mixture. The birds were slaughtered at the age of 38 days. Thus, chemical analysis of meat showed that feeding some probiotics to broiler chickens instead of antibiotics practically did not affect its composition while in the trial groups there was a slight increase in the proportion of protein by 0.3-1.2%.