Index of productivity laying hens and the chemical composition of eggs for the use of pro- and postbioticsg

Abstract

The article discusses the efficiency of keeping laying hens in organic farming. The use of prophylactic drugs based on probiotic microorganisms Lactobacillus plantarum and postbiotic "Bacteriosan" - the development of employees of the Department of animal hygiene and sanita􀆟on. prof. A. K. Skorokhodko. The research was conducted in a certified organic farm. In one of the premises of the organic farm, experienced chickens were kept, they were fed organic food, and a probiotic drug based on the Lactobacillus plantarum strain was added to the water in a dosage of 1 g / l daily, for 7 days, with a week break throughout life. In another room, experienced chickens were also kept, they were fed organic food, and a solution of postbiotic "Bacteriosan" was added to the water (100 ml of 40 % lac􀆟c acid + 0.05 g of bacteriocin nisin +895 ml of H2O), at a dose of 1 ml / l daily. The third room contained chickens of the control group (K), which received organic food without additives, no preventive drugs were used. The following parameters were studied in laying hens: live weight, egg laying intensity, weight of the egg and its components (protein and yolk), shell thickness. Analysis and interpretation of the experimental data obtained prove the positive effect of both these drugs, compared with the control. There was an increase in the live weight of laying hens and the intensity of egg laying, the latier in the first experimental group (probiotic) was 75.09 %, and in the second (postbiotic) - 76.50 %, against 70.30 % - in the control group. Similar changes were found in relation to the weight of eggs and the weight of their components (yolk and protein), as well as the thickness and weight of the shell compared to the control group of birds. Probiotic Lactobaillus plantarum and postbiotic "Bacteriosan" are recommended for use by laying hens for their content and production in organic poultry farming.