Volume 12, number 2
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The Effect of Coniferous-Energy Feed Additive in Diets on Metabolic and Productive Factors of Heifers and Cows of Black and Motley Breed

Yuri Nikolayevich Prytkov, Anna Aleksandrovna Kistina, Maxim Yurievich Chervyakov, Alexander Sergeyevich Zenkin

FSBEI HPE “Ogarev Mordovia State University”, 68, Bolshevistskaya str., Saransk, 430005, Republic of Mordovia, Russia

ABSTRACT: We have conducted research to study the effect of different dosages of coniferous-energy feed additive on morphological and biochemical indicators and mineral composition of blood, dynamics of live weights and average daily weight gains of heifers and milking ability of cows. According to the principle of pairs-counterparts 4 experimental groups were formed, each of which received a certain dosage of feed additive in the daily diet. The conducted research found that the use of coniferous-energy feed additive in the dosage of 17 g/kg of the dietary dry matter contributes to normalization of homeostasis, increase in the growth power of body weights of heifers, increase in the milking ability of cows of black and motley breed.

KEYWORDS: coniferous-energy feed additive; live weight; average daily weight gain; heifers; hematological indicators; cows; reproductive function

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Prytkov Y. N, Kistina A. A, Chervyakov M. Y, Zenkin A. S. The Effect of Coniferous-Energy Feed Additive in Diets on Metabolic and Productive Factors of Heifers and Cows of Black and Motley Breed. Biosci Biotech Res Asia 2015;12(2)

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