The aim of the study was to obtain physiological, biochemical and zootechnical data confirming the effective use of the antioxidant dihydroethoxychine to increase productivity in laying hens. The experiment was carried out on 2 groups of laying hens of the breeding herd, selected by 100 heads by random sampling. For 41 days, the chickens of the experimental group received a basic diet with the addition of dihydroethoxychine (DGE) in the amount of 100 mg/kg of feed. On the 25th day of the experiment, blood samples (n=5) were taken for biochemical studies. In the experimental group, the concentration of cholesterol in the fraction of high-density lipoproteins increased twofold (P<0.01) and in the fraction of low-density lipoproteins decreased by almost 50% (P<0.01) against the control. The concentration of MDA in the blood of chickens in the experimental group was 82.00% relative to that in the control, and in the yolk of the egg - only 37.42 %. Egg production of chickens in the experimental group was higher than in the control by 7.3% (P<0.1). Hatchability of chickens in the experimental group increased by 14.6% (P<0.01) relative to control. It was concluded that the tested water-soluble antioxidant has a positive effect on the biological functions and productive parameters of laying hens.
The recommendations summarize the results of the use of feed additives (ASD-2F, vitamin preparations, antioxidants, prebiotics) that stimulate the productivity and preservation of poultry, the production of quality products, both under normal conditions of feeding and keeping the bird, and in stressful situations.
The article presents the results of research aimed at developing a new product - a cooked sausage product with specified quality parameters: improved organoleptic properties, increased protein content and a balanced amino acid composition. The positive effect of sprouted wheat, maize germ and kelp in the recipes of sausage products was proved, so the iodine content in the experimental sample III was higher than in the other samples by 27% (15% of the daily requirement) for people.
The manual summarizes the main production risks associated with mycotoxicosis, the use of herbicides, dysbacteriosis, the quality of premixes, mineral raw materials, water, feed, technological and biological stresses, and provides recommendations for minimizing livestock losses, poultry productivity and product quality in the production of eggs and meat.
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