Effect of dry extract from Saccharomyces cerevisiae culture with selenium-containing amino acids on the productivity and chemical composition of meat of broiler chickens

Introduction of biologically active supplements to the diet poultry results in maximal use nutrients and positively influences live weight slaughter parameters. This promotes rational economical fodders boosts productivity. We studied a mineral feed supplement – an organic selenium compound, which has much greater bioavailability than inorganic sources selenium. Selenomethionine is easily digested organism effectively used for synthesis proteins. Broiler chickens experimental group that had been consuming selenoamino-acid additive at age 14–42 days, compared with control. Intake by broiler increased their mean daily increment 8.5% absolute 8.6%, control peers. In broilers, pre-slaughter 8.4%, intact carcass 10.1%. Also, semi-processed carcasses (i.e. those removed intestines cloaca, filled crop, oviduct ovary (in female specimens) 4.3%, processed (the internal organs abdominal-cavity fat esophagus were removed, without head, legs wing metacarpals) 8.0%, broilers. group, gave 13.7% rise breast muscles 14.5% increase thigh muscles, group. this promoted 7.5% gizzard 9.2% duodenum, as Usage protein concentration 1.9%, amounts dry matter Therefore, adding yeast extract broilers together selenium-containing amino acids promising method increasing effectiveness farming.