Effectiveness of premixes with different levels of mineral substances and vitamins in the diets of breeding bull calves during preweaning period | Эффективность применения премиксов с различным уровнем минеральных веществ и витаминов в кормлении племенных бычков в молочный период
2012
Goryachev, I.I. | Karpenya, M.M., Vitebsk State Academy of Veterinary Medicine (Belarus) | Nevar, A.A., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus)
Use of premixes with higher levels of vitamins and trace elements in diets of breeding bull calves has a favourable effect on their growth and nutrient digestion. The highest average daily weight gain was 920 g which is 7.9 % more as compared to the control. Food intake per1kg of gain was reduced to 4.56 calorie units, or by 6.1 %. It has also been established that inclusion of vitamin-mineral premix No 2 into a diet of animals increases nitrogen fixation by 5%, calcium fixation – by 9.9 %, fixation of phos-phorus – by 11.3 %
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