Blood parameters and productivity of cross Cobb-500 chicken broilers after adding feed supplement of calcium butyrate to the diet
AbstractA large amount of feed additives is currently used in poultry feeding. Common among them are preparations containing butyric acid salts, particularly sodium butyrate and calcium butyrate, which have a positive effect on the bacterial population in the digestive tract and stimulate a nonspecific resistance of the birds. The objective of the work was to determine the effect of the feed supplement of calcium butyrate on the biochemical parameters and morphological composition of blood, as well as the productivity of chicken broilers of cross Cobb-500. To conduct the experiment based on the principle of similar groups, two groups of animals were formed: control and experimental, 60 heads each. Birds of the experimental group, starting from day 10 and until day 45 of age had general diet complemented by “Globamax 1000” feed supplement produced by “Global Nutrition” (France) in the amount of 100 g per 100 kg of mixed fodder. The diet of both groups were balanced according to the needs described for the Cobb-500 cross. The poultry was kept under the same conditions and selected from one batch of incubation for conducting the research. Blood samples were shedded from the subclavian vein on the 45th day of life from 5 animals of each group. As a result of the research, it was found that the use of the feed supplement resulted in a significant increase in the content of total protein of blood serum of chicken broilers by 17.8% (P < 0.05), albumins by 14.5%, globulins by 20.2% (P < 0.05) and uric acid by 52.3% (P < 0.05). The content of total calcium in the blood serum of chicken broilers receiving “Globamax 1000” was 29.5% (P < 0.05) higher compared to the control group, while the level of activity of alkaline phosphatase increased by 19.9%. It was established that the feed supplement positively affects the growth of broilers and the growth of live weight. Hence on the 45 th day of age the mass of chicken broilers in the experimental group was 13.8% bigger compared to control group. Based on the research, it was found that the use of calcium butyrate in the form of a feed supplement “Globamax 1000” for chicken broilers increases the anabolic processes in the bird organism, increases the level of resistance of chicken broilers and improves the assimilation of nutrients from feed.
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