Feeding standards for red belarusian cattle in dry and increasing milk yield periods of macroelements
Abstract
Red dairy cows demonstrate high productivity and improved milk characteristics, which is why this breed is in demand in dairy farming in the Republic of Belarus. Developing optimal rations for animals of this breed will increase the efficiency of milk production, reduce the risk of disease, and increase the profitability of enterprises in the industry.
The aim of the study was to comprehensively investigate the effectiveness of increased levels of minerals (calcium, phosphorus, magnesium, sulfur) in the feeding of Red dairy cows of Belarusian selection during various physiological
periods of the animals’ lives (dry period, increasing the milk yield) using total mixed rations.
The studies showed that the use of moderately increased requirements for calcium, phosphorus, magnesium, and sulfur by 2-5% per 1 kg of dry matter of the diet ensured higher body weight gain and the production of calves with increased growth capacity. There was also an increase in daily yield of milk of standardized 4 % fat content in milk yield periods by 3.57 % and 6.15 %, respectively, as well as higher milk protein yield and greater lactation stability over time, indicating an increase in the biological full-value of rations.
About the Authors
A. I. Sakhanchuk
Scientific and Practical Center of the National Academy of Sciences of Belarus for Animal Breeding
Belarus
Belarus
Zhodino
M. G. Kallaur
Scientific and Practical Center of the National Academy of Sciences of Belarus for Animal Breeding
Belarus
Belarus
Zhodino
E. G. Kot
Scientific and Practical Center of the National Academy of Sciences of Belarus for Animal Breeding
Belarus
Belarus
Zhodino
A. A. Nevar
Scientific and Practical Center of the National Academy of Sciences of Belarus for Animal Breeding
Belarus
Belarus
Zhodino
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Review
For citations:
Sakhanchuk A.I., Kallaur M.G., Kot E.G., Nevar A.A. Feeding standards for red belarusian cattle in dry and increasing milk yield periods of macroelements. Zootechnical Science of Belarus. 2025;60(2):107-115. (In Russ.)
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