EFFICIENCY OF USING THE PROBIOTIC AND IODINE SALT IN INDUSTRIAL POULTRY BREEDING
The article presents the results of studying the effects of the probiotic tetra-lactobacterin and potassium iodide on the physiology of laying hens of the Lomann Bely breed. Zootechnical and biochemical parameters of the state of birds are considered. The results of the study showed that the combined use of potassium iodide and tetralactobacterin contributed to an increase in feed intake of 2.7% and an increase in the absorption of essential nutrients. Laying hens of the experimental group digested fiber better - by 6.47%, protein - by 3.05%, minerals on average - by 12.7%. There was a greater localization of calcium in the bones of birds and in the eggshell of the hens of the experimental group and less excretion with a litter of the main macroelements - calcium and phosphorus. The qualitative characteristics of the food egg over the course of scientific and economic experience improved: the content of vitamins in the yolk increased, the iodine content increased, which led to the production of poultry products enriched with iodine. The productivity of laying hens in the experimental group increased by 2.1-2.6%, poultry safety increased by 2.88%. The average egg mass increased by 1.3%. Calculations of economic efficiency showed that when applying the studied additives, the self-value of 10 pcs. eggs decreased by 34 kopecks, and the profitability of production increased by 1.5%.