Effect of probiotic supplements on productivity and meat quality of broilers

Abstract

The purpose of the research was to study the effectiveness of using the probiotic BifidumSChZh, vitamin E and sodium selenite in diets with an excessive content of Heavy Metals (HM in future) salts to increase meat productivity and consumer qualities of broiler meat. From chickens at one day of age, according to the principle of analog groups, we formed 4 groups of 200 heads each. It was found that broiler chickens 3 experienced were distinguished by the best slaughter characteristics due to the high detoxification effect with joint additions to the composition of diets with an excess content of HM salts of probiotic, vitamin E and sodium selenite. Moreover, in the meat poultry of this group during the present experiment, compared with the analogs of the control group, higher indicators of the mass of a half-gutted carcass were observed by 11.93%, gutted – by 12.23%, slaughter yield – by 1.11%. With the combined use of a probiotic and two antioxidants in the compound feed formulation, samples of white meat from broilers of the 3rd experimental group were distinguished by the best nutritional properties, in which, relative to analogs from the control group, in the samples of pectoral muscles, the dry matter concentration increased by 1.12%, protein – by 1.14% while reducing the level of fat – by 0.40%. It was found that due to the efficiency of detoxification of toxicants during joint feeding of tested drugs against poultry of the control group in broilers of the 3rd experimental group in samples of pectoral muscle (white meat) there was an increase in the concentration of the amino acid tryptophan by 0.11%, which provided significant increase in the value of meat PQI – by 15.96%. Due to this, the poultry of this group in the pectoral muscle samples contained less zinc – 2.71 times, cadmium – 2.57 and lead – 2.65 times.