THE EFFECTIVENESS OF USING A FEED ADDITIVE BASED ON SUGAR PRODUCTION LIME IN FEEDING CALVES IN THE WINTER GROWING PERIOD
2020
N.N. Kerdyashov | A.I. Dariin | A.V. Ovchinnikov
The Volga region belongs to the biogeochemical provinces that are deficient in phosphorus, sul-fur, sodium, zinc, iodine, cuprum, and cobalt. Sugar production lime contains calcium, phosphorus, and a number of other valuable nutrients. The use of sugar lime and feed additives based on it in-stead of fodder chalk helps to preserve the environment from contamination by waste from sugar production. One kilogram of the new feed additive made of the sugar production lime, vanillin and vitamin D preparation contained: calcium – 285 g, phosphorus – 12.5 g, crude protein – 61.5 g, sugar – 25 g, ferrum – 3.9 g, cuprum – 4.2 mg, manganese – 86.3 mg, zinc – 7.9 mg, cobalt – 0.11 mg, vit-amin D – 55000 IU. The calves' eatability of the new feed additive is 31.6-61.1% higher compared to the fodder chalk. The inclusion of this feed additive in the calves' diets ad libitum (without premixes) in the winter growing period significantly improves the basic zootechnical indicators of young animals in comparison with the use of fodder chalk: live weight ‒ by 3.1-3.8 %, the average daily increase in live weight ‒ by 10.3-15.4 %, the absolute increase in live weight ‒ by 10.3-15.2 %; the amount of feed item per 1 kg of the increase in live weight of calves lower than control by 9.4-13.2 %. The use of the studied feed additive is cost-effective, since the cost of 1 kg of live weight increase of calves is lower by 18.81-19.33 rubles.
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