E3S Web Conf.
Volume 254, 2021International Scientific and Practical Conference “Fundamental and Applied Research in Biology and Agriculture: Current Issues, Achievements and Innovations” (FARBA 2021)
|Number of page(s)||6|
|Section||Scientific Support for the Innovative Development of Animal Husbandry|
|Published online||05 May 2021|
Efficiency of combined fodder use with reduced amount of grain in feeding lactating cows
1 State Agrarian University, Samara, Russia
2 Research Center RAS, SZNIIMLPH, Vologda, Russia
3 NIIS — branch of SamNCRAS, Povolzhskiy, Russia
4 State University named after I.S. Turgenev, Oryol, Russia
* Corresponding author: email@example.com
The assessment of the need to include combined fodder with reduced amount of grain in the diet of dairy cows by replacing it with non-grain components (wheat bran, protected fodder fat) is given. In the scientific and economic experiment on 2 groups of cows 12 heads each, the influence of combined fodder with 40% of grain components by weight on the palatability of feed, milk yield, milk composition, nutrients' digestion coefficients, biochemical blood composition, level of milk production profitability was studied. Reducing the proportion of grain to 40% in the total number of concentrate's components allows to increase 4% fat milk yield by 0.8% while increasing the amount of fat and protein by 0.02 — 0.04%. The preference for consumption per 1 kg of 4% fat milk was in the experimental group - 8.67 MJ ME; 337 g of combined fodder. Reduction of grain in the combined fodder composition contributed to an increase in profitability by 12.3%.
© The Authors, published by EDP Sciences, 2021
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