Аграрный вестник Урала № 08 (175) 2018Биология и биотехнологии
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.
cattle, Holstein breed, milk productivity, yielding qualities, transition period, hematology, feed additives, diet, carnitine, economic efficiency.
1. Varakin A. T., Solomatin V. V., Kharlamova E. A., Varakina M. A., Solomatina M. V. Milk productivity of cows and milk quality when used in rations of new fodder additives // Husbandry. 2013. No. 2. P. 12–14.
2. Diagel A. S. Optimization of cows feeding under intensive use // Bulletin of the Altai state agrarian university. 2013. No. 2. P. 73–75.
3. Gamko L. N., Samuseva N. A. Complex feed additive in the diets of high-yielding cows // Bulletin of the Bryansk state agricultural academy. 2017. No. 2. P. 56–61.
4. Gorlov I. F., Mokhov A. S., Vorontsova E. S., Slozhenkina M. I., Karetnikov A. R. Improvement of dairy productivity and milk qualitative indices for the account of application of new feed additives // Proceedings of the Lower Volga agrarian sector. Science and higher education. 2017. No. 3. P. 160–168.
5. Kononov V. P. The compatibility problem of high milk production, reproductive performance and productive longevity of cows in modern dairy husbandry // Farm Animals. No. 1. 2013. P. 40–47.
6. Latysheva O. V., Pozdnyakova V. F. Peculiarities of milk production of Holstein cows under conditions of modern complexes // Husbandry. 2015. No. 7. P. 17–18.
7. Makartsev N. G. Feeding of agricultural animals : textbook for universities. Kaluga : Noosphere, 2012.
8. Maksimyuk N. N., Rebezov M. B. Physiological basis of animal productivity : monograph. Veliky Novgorod : Novgorod Technopark, 2013. 144 p.
9. Sem’yanova S. E., Guber N. B. Biotechnology to improve the quality and increase milk production // Bulletin of the South Ural state university. Ser. Food and biotechnology. 2015. No. 1. P. 5–14.
10. Fomichev Yu. P., Dovydenkov G. V. Complex application of choline chloride, L-carnitine and ekostimulin-2 in the prevention of ketosis in high producing dairy cows // News of Orenburg state agrarian university. 2010. No. 4. P. 244–248.
11. Fomichev Yu. P., Netecha Z. A., Necrasov A. A., Sulima N. N., Eskov E. K., Nicanov A. Y., Lashin S. A. Normalization of metabolism and increase milk quality in finst colving cows during of transition period // Achievements of science and technology in agriculture. 2012. No. 8. P. 31–33.
12. Chirkin A. A., Danchenko Ye. O. Biochemistry. M. : Medical literature, 2010. P. 279–282.
Download article as PDF: