Agrarian
Bulletin
of the Urals

Russian Journal of Agricultural Research

The publication is registered by the Ministry of the Russian Federation
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 № 08 (175) 2018

Биология и биотехнологии

Позднякова В. Ф. доктор сельскохозяйственных наук, профессор Ярославская государственная сельскохозяйственная академия

Латышева О. В. аспирант Костромская государственная сельскохозяйственная академия

Тиминская И. А. аспирант Костромская государственная сельскохозяйственная академия

Иванов А. В., директор по развитию ООО «АгроВитЭкс»

УДК:636.234.1.034

EFECT OF INTEGRATED FORAGE ADDITIVES VITEX RT ON THE METABOLISM AND MILC QUALITY OF COWS OF HOLSTEIN

In recent years, along withhigh rates of milk production in Holstein cows there is a number of problemssuch as difficulty in reproduction and reduction of time of productive use. Theuse of new types of fodder, balanced feeding allows to increase the yield whilemaintaining the physiological status and productive longevity of cows. The influence of integrated forage additives Vitex RT onmilk productivity and hematological indices of cows a was studied. The research was conducted 2017 in the Moscow region. After the preliminary period two groups of Holstein cows as analogs breed were formed, with 10 heads ineach. In scientific-economic experiments theproductivity and a number of other parameters were recorded: milk productivityin the period of control milkings, and the mass fraction of fat and protein inmilk were determined, blood samplings were taken from the jugular vein forbiochemical and morphological studies. Lactating cows from the control groupreceived the ration accepted in the farm, the animals of the 1st test group – in addition to the general economicration the stern supplement Vitex-RT in the norm of 100 g per cow for 24 hours. The productivity of the animals of the experimentalgroup increased by 18.0 % (P ≤ 0,05) for 120 days for lactation, converted into4 % fat-corrected milk for cows in the period of improving milk yield at acomparatively equal concentrate cost per liter of milk. In the blood of animalsof experimental group, the protein content increased by 11.9 % (P ≤ 0.05),decreased lipid level by 15.9 % (P ≤ 0.05). The service period also decreasesby 13 days. The results obtained showed that inclusion of feed additives Vitex-RT intothe cow diets has positive effect on the metabolism, contributed to increase oftheir milk yields, as well as of fat content in milk produced.


Keywords:

cattle, Holstein breed, milk productivity, yielding qualities, transition period, hematology, feed additives, diet, carnitine, economic efficiency.


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