The effectiveness of the Madufor® feed additive in hyperthermia conditions for broiler chickens

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Among the severe lightning-fast pathological processes that affect farm animals and poultry of all age categories, it is worthwhile to highlight overheating and dehydration, which are especially common in the southern regions of the country. The paper presents the results of studies on the effectiveness of Madufor® feed additives in heat stress of broiler chickens. According to the results of hematological studies, it was found that the content of red blood cells, hemoglobin, hematocrit and platelets in the blood of chickens of the control group was at the upper boundary of the physiological norm or slightly exceeded them. Thus, the level of red blood cells in the control group was 4.18·1012/l, hemoglobin 107.11g/l, hematocrit 39.32% and platelets 232.85·109/l, and in the experimental group these indicators were within the physiological norm and amounted to 3.47·1012/l, 103.89g/l, 34.48% and 168.85·109/l, respectively, which indicates the normalization of metabolic processes in the body of broiler chickens under the influence of the Madufor® feed additive. In the blood serum of broiler chickens in the control group, an increased total protein content of 5.28g/l (11.91%; P<0.01) was compared with the experimental group. The AST level in the control group also exceeded the similar values of the experimental group by 15.06 units/l at P<0.01. During the experiment, the mineral composition of the blood serum of the chickens of the experimental group improved in relation to the control. The concentration of calcium, sodium and potassium significantly exceeded the control by 14.78 (P<0.05), 1.65 (P<0.05) and 8.15% (P<0.01), and the level of phosphorus tended to increase with an unreliable difference. Throughout the cultivation, the live weight of the chickens of the experimental group exceeded the control values. During the finishing fattening of broilers of the experimental group at the age of 28 and 35 days, their live weight exceeded the same indicator in the control group by 171.7 (13.06%; P<0.001) and 288.2 g (15.42%; P<0.001 ) Accordingly, feed consumption per 1 kg of growth in the control group was significantly higher than in the experimental group by 0.26 kg.