ЭлБиб

Молочнохозяйственный вестник, №4 (28), IV кв. 2017

БИОЛОГИЧЕСКИЕ И СЕЛЬСКОХОЗЯЙСТВЕННЫЕ НАУКИ

An efficient mineral and energy supplement in the rations

of highly productive cows

Korshunova, Olga Vladimirovna, postgraduate student, the Chair of Animal Breeding

and Biology

e-mail:

Federal State Budgetary Educational Institution of Higher Education

the Vereshchagin State Dairy Farming Academy of Vologda

Smirnova Lyudmila Vladimirovna, Candidate of Sciences (Agriculture), Associate

Professor

e-mail:

Federal State Budgetary Educational Institution of Higher Education

the Vereshchagin State Dairy Farming Academy of Vologda

Suslova Irina Aleksandrovna, Candidate of Sciences (Agriculture), Associate

Professor

e-mail:

Federal State Budgetary Educational Institution of Higher Education

the Vereshchagin State Dairy Farming Academy of Vologda

Abstract

. The article discusses the results of scientific and economic experiment

carried out on black-motley breed cows on the use of mineral and energy supplement,

‘Reactor’, which includes energy components, calcium propionate, betaine and natural

sorbent. The complex action of the investigated product had a positive impact on animal

productivity. It was established experimentally that using during the transitional period

of 250-350 gr. of ‘Reactor’ per head daily allows to increase daily milk yield of cows in

the first hundred days of lactation by 9.8 and 14.5% (to 30.3 and 31.6 kg vs. 27.6 kg in

control), to improve milk production profitability level by optimizing feed consumption,

and to reduce the service period.

Keywords:

dairy cows, ration, energy supplement, daily milk yield, milk

composition, service period, economic efficiency.

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