| Issue |
E3S Web of Conf.
Volume 222, 2020
International Scientific and Practical Conference “Development of the Agro-lndustrial Complex in the Context of Robotization and Digitalization of Production in Russia and Abroad” (DAIC 2020)
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|---|---|---|
| Article Number | 02059 | |
| Number of page(s) | 12 | |
| Section | Modern Directions of Highly Productive Environmentally Friendly Agro- and Water Management, Development and Implementation of Systems for the Rational use of Modern Chemical and Biological Protection of Agricultural Plants and Animals, the Use of New Drugs, Growth Agents, Antidepressants, Immunostimulants, Probiotics and Feed Additives | |
| DOI | https://doi.org/10.1051/e3sconf/202022202059 | |
| Published online | 22 December 2020 | |
Body type of cows as a factor of their productive longevity
Ural State Agrarian University, 620075 Yekaterinburg, Russian Federation
* Corresponding author: olgachech@yandex.ru
The purpose of these studies was to assess the influence of Russian Black Pied cows’ body types on their productive longevity. The studies were conducted on the basis of enterprises of the Sverdlovsk region specializing in breeding of Russian Black Pied cattle. Most heifers were of the complex class “Excellent” (36.0%), less of “Satisfactory” (6.0%). The second largest class was “Good with a plus” (28.0%). A complex class of animals affects their milk production. When selecting first-calf heifers, taking into account the body type, it seems possible to obtain animals of a conformation complex class not lower than “Good”; to obtain at least 5000-5500 kg of good quality milk with a mass fraction of fat of 3.85-3.88% and protein fraction of 3.06-3.08% from cows of 305 days of lactation, depending on the potential of the breeding herd; to increase the duration of production use up to 4.3-6.8 lactations; to increase the level of lifelong yield to 29637.0-38126.8 kg of milk.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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