Agrarian
Bulletin
of the Urals

Russian Journal of Agricultural Research

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for Affairs of the Press, Television and Radio Broadcasting and Mass Communication Media.
Registration certificate: PI number 77-12831 on May 31, 2002
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ISSN 1997 - 4868 (Print)

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ISSN 2307-0005 (Online)
Key title: Agrarnyj vestnik Urala (Online)
Abbreviated key title: Agrar. vestn. Urala (Online)

Аграрный вестник Урала № 10 (177) 2018

Биология и биотехнологии

Абилева Г.У.

Морозова Л. А. кандидат сельскохозяйственных наук, доцент Курганская ГСХА имени Т. С. Мальцева

Миколайчик И. Н. доктор сельскохозяйственных наук, профессор Курганская ГСХА имени Т. С. Мальцева

Ильтяков А.В. кандидат технических наук Курганская государственная сельскохозяйственная академия

Ступина Е.С. аспирант Курганская государственная сельскохозяйственная академия

УДК: —

INFLUENCE OF COMPLEX BIOTECHNOLOGICAL FEED ADDITIVES FOR PRODUCTIVITY AND QUALITY COW MILK

The modern biotechnologyindustry pays great attention to the production of feed additives, inparticular, probiotic and prebiotic agents, aimed at stimulating nonspecificimmunity, preventing and treating diseases caused by impaired microbiocenosisof the digestive tract. Studies have been conducted on black-and-white cowsduring the winter-winter period. The effect of probiotic and prebiotic additiveson the digestibility of nutrients in highly productive cows, as well as theirmilk production and milk quality, was assessed. It was found that cows 3 of theexperimental group had higher digestibility factors of nutrients, consumed inaddition to the basic ration the probiotic additive “Lactur” in the amount of 1kg/t and the prebiotic additive “Acid Lac” in the amount of 1,5 kg/t from the mass ofconcentrated feed by compared with the control, 1 and 2 experimental groups on:dry matter by 2.15 %, 0.68 and 1.43 %; organic matter - by 2.05 %, 0.55 and 1.41%; crude protein — by 2.72 % (P <0.05), 0.93, and 1.19 %; crude fat - by3.38%, 1.13 and 2.70 %, crude fiber - by 2.73 % (P <0.05), 0.84 and 2.26 %;BEV - by 1.50 %, 0.28 and 1.06 %, respectively. Milk yield of natural fatcontent in cows 3 of the experimental group exceeded control by 289 kg, or 8.32%, and milk yieldanalogues 1 and 2 of the experimental groups by 68.7 kg (1.86 %) and 110.3 kg (3.02 % )respectively. The dry matter content is the highest in milk 3 of theexperimental group, exceeding the control group, 1 and 2 experimental groups by0.27 %; 0.09 and 0.12 %, respectively, and the level of fat in the milk of cowsin the experimental groups averaged 4.08 %, which is 0.7% more compared to thesame indicator in the control group. A higher protein content was in the milkof cows from the 3 experimental group: by 0.11 % more than the control and by0.02 and 0.05 % compared with the 1 and 2 experimental groups, respectively.


Keywords:

energy and nitrogen use, cows, milk productivity, probiotics, prebiotics.


References:

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