Golovin AV.

Animal Husbandry and Fodder Production. 2024. Vol. 107, no 4. Р. 206-217.

doi:10.33284/2658-3135-107-4-206

Original article

Efficiency of plant protein concentrates in optimizing protein nutrition of dairy cows

 

Alexander V Golovin1

1Federal Research Center for Animal Husbandry named after Academy Member LK Ernst, Moscow region, Dubrovitsy, Russia

1alexgol2010@mail.ru, https://orcid.org/0000-0001-9853-1106

 

Abstract. The results of the research obtained from the results of the experiment conducted on two groups of Holstein cows (n=20) indicate a positive effect from increasing the indigestible fraction of crude protein (NDP) in the diet of lactating cows during the milking period from 35 to 40.0%, when replacing sunflower meal (1.2 kg) with soy protein concentrate (1.0 kg), which manifested itself in an increase in milk yield by 259 kg (P≤0.05) during the first third of lactation and an increase in fat and protein yield by 11.0 kg and 9.4 kg (P≤0.05), with a decrease in urea content by 6.7% (P≤0.05). Dynamic milk yield of cows receiving protein concentrate affected the increase in milk yield per lactation by 6.5% (p≤0.01). The obtained effect was also supported by biochemical blood tests, which showed that the use of soy protein concentrate to balance the diet according to the NDP had a positive effect on the state of protein metabolism, with an established trend of increasing the concentration of total protein by 3.2% and a reliable decrease in the concentration of urea by 13.6% (P≤0.05). Optimization of protein nutrition indicators of high-yielding cows in the first third of lactation using soy protein concentrate had a positive effect on the cost of milk, which decreased in relation to the control by 1.6%, against the background of receiving additional income per 1 head in the amount of 3885.4 rubles.

Keywords: cow rations, indigestible protein, sunflower meal, soy protein concentrate, milk yield of cows, biochemical status, economic indicators

Acknowledgments: the work was performed in accordance to the plan of research works for 2021-2023 FGBNU FRC VIZh named after L.K. Ernst (No. 0445-2021-0002).

For citation: Golovin AV. Efficiency of plant protein concentrates in optimizing protein nutrition of dairy cows. Animal Husbandry and Fodder Production. 2024;107(4):206-217. (In Russ.). https://doi.org/10.33284/2658-3135-107-4-206

 

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Information about the author:

Alexander V Golovin, Dr. Sci. (Biology), Professor, Chief Researcher of the Department of Feeding of Agricultural Animals, Federal Research Center for Animal Husbandry named after Academy Member LK Ernst, Dubrovitsy, Russia, 60 Dubrovitsy settlement, Moscow Region, 142132, Podolsk,  tel.: 8(4967) 65-12-08.

 

The article was submitted 14.10.2024; approved after reviewing 29.11.2024; accepted for publication 16.12.2024.

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