Pecularities of Composite Lacto- and Bifidoprobiotic Biotechnology: Determination of Rational Dose Influence upon Chicken Broilers’ Performance
Background. The EU decision completely stopped the use of promoter antibiotics as fodder therapeutic and prophylactic additives for animals from 01.01.2006. Therefore, probiotic preparations containing adjuvant microorganisms for the intestine of the individual are actively developed and introduced into the practice of livestock. The use of environmentally compatible probiotic preparations has become a priority in poultry farming.
Objective. The aim of the paper is to identify the features and effectiveness of the rational dose and the temporal regime of using the feed lactobiphidoprobiotic in production conditions on the control and experimental groups in 1000 heads of broiler chickens at poultry farming enterprises.
Methods. The main zootechnical indices were studied in accordance with the generally accepted methods, chemical and biochemical analysis was carried out, the coefficient of energy value, the meat-and-bone quality index and the calorific value of the broiler chicken meat of the control and experimental groups were calculated.
Results. Experimental results on the effectiveness of the rational dose of the complex fodder probiotic supplement are presented on the basis of the functional mixture of Bifidobacterium pullorum, Lactobacillus plantarum, L. paracasei ssp.bacteria. Paracasei and L. rhamnosus for broiler chickens.It was found that with the use of a probiotic composite, the live weight of broiler chickens of the experimental group increased by 6.8%, the average daily gain increased by 6.9 %, safety by 3.2%, the productivity index increased by 37.7 units compared to the control. It was found that the content of protein and ash in carcasses and parts thereof as a result of the use of a functional additive increased, and the moisture and fat content, on the contrary, decreased.
Сonclusions. It has been proved that the use of a complex fodder probiotic based on lacto- and bifidobacteria significantly improves the quality of production of broiler chickens under production conditions. The obtained results on a production scale and conditions confirm the effectiveness of the introduction of a complex probiotic for agricultural birds developed on the broiler chickens model, are the basis for further research and implementation in large-scale production, and also open prospects for its use for Galliformes taxon birds, including meat and ornamental breeds.
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