[Bentonite of Zyryansky minefield in animal and poultry diets]
2009
Karmatskikh, Yu.A., The T.S. Maltsev Kurgan State Agricultural Academy, Kurgan Region (Russian Federation)
There are given the results of scientific production experiments on including bentonite in the diets of dairy cows, heifers in the growing period till the age of 6 month, mares and growing horses of Orlovsky Trotters, as well as using bentonite in combined fodders for broiler chickens and goslings. As is shown, the inclusion in the cow diets of 300-400 g of bentonite per head a day (1.9-2.2% of dry matter) provides increasing milk yield by 9.3-13.6%, milk fat – by 0.15% positively influences the blood picture. To reduce radioactive contamination of milk and meat it is recommended to add bentonite to the diets at an amount of 3 to 5%. The studied with heifers have shown that feeding bentonite improves digestibility of nutrients. The recommended dose of bentonite for heifers is 2% of dry matter. When using in mares' diets, bentonite the profitability increased by 5.9%, in growing horses' diets – by 14.6%. bentonite added to combined fodders for broiler chickens allowed increasing the gain of live body by 9.97-10.90%, dressed chicken yield – by 0.28-2.08%. The weight of edible parts was by 8.32-12.70% more. The broiler goslings the effective dose of bentonite is 1 and 2% to the weight of combined fodder. The live body increases by 5.8 and 4.9%, respectively
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