THE SYNERGISTIC IMPACT OF BETAINE, TAURINE, AND MYO-INOSITOL ON THE BIOCHEMICAL BLOOD PROFILES OF LAYING HENS UNDER HEAT STRESS CONDITIONS
DOI:
https://doi.org/10.32782/2450-8640.2024.2.2Keywords:
heat stress, laying hens, betaine, taurine, myo-inositol, biochemical indicators of blood, metabolic processes, enzymatic activity, proteins, lipid metabolism.Abstract
In modern poultry farming, heat stress is one of the main factors negatively affecting the productivity of laying hens. Elevated temperatures lead to changes in metabolic processes, reflected in disruptions of blood biochemical indicators, specifically enzyme activities, protein, lipid, and metabolite levels. Feed supplements with antistress properties, such as betaine, taurine, and myo-inositol, hold promise for reducing the adverse effects of heat stress on poultry. Therefore, the study aimed to evaluate the impact of betaine, taurine, and myo-inositol supplements on the biochemical parameters of the blood of laying hens exposed to heat stress and to establish ways to prevent its negative effects. In the study, 15 laying hens were used, divided into 2 groups: 1st group – control (С), 2nd group – experimental (Е), whose hens received betaine in the amount of 0.5 g/kg of feed, taurine in the amount of 5 g/kg of feed and 2 g/kg of myo-inositol from the dry matter of the feed. The study included two stages: in the first, which lasted seven days, the chickens were kept at a temperature of 20 °C, which was taken as thermoneutral conditions, and in the second, the air temperature in the vivarium was raised to 30 °C for 6 hours every day for a week. After each stage, blood samples of the birds were taken for further research. This study established that these supplements help maintain biochemical stability under HS conditions, particularly by stabilizing protein and lipid metabolism, improving oxidative defense markers, and reducing overall metabolic stress on the body. The results indicate the feasibility of using betaine, taurine, and myo-inositol to prevent stress-related disorders in laying hens under production conditions.
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