Afanasyeva AI, Sarychev VA.

Animal Husbandry and Fodder Production. 2025. Vol. 108. No. 1. Р. 115-127.

doi:10.33284/2658-3135-108-1-115

Original article

Modification of metabolism and productivity of dairy cattle using the enzyme-probiotic feed

additive Profort

 

Antonina I Afanasyeva1, Vladislav A Sarychev2

1,2Altai State Agrarian University, Barnaul, Russia

1antonina59-09@mail.ru, https://orcid.org/0000-0002-6970-5987

2Smy-asau@yandex.ru, https://orcid.org/0000-0003-4412-4366

Abstract. Modern methods of feeding dairy cattle, including year-round uniform feeding, are not always optimal for ruminants, which can lead to a decrease in the efficiency of nutrient absorption, especially with excessive intake of concentrated feeds, in which a large amount of lactic acid is formed in the rumen microbiome as a result of carbohydrate fermentation, which has a negative effect on the metabolism, structure and function of internal organs. One of the possible solutions to this problem in feeding highly productive cows is a targeted effect on the symbiotic microflora of the forestomachs by feeding probiotic preparations. In this regard, the aim of our research was to study the effect of the enzyme-probiotic feed additive Profort on the metabolic status, milk productivity and milk quality of lactating cows under conditions of year-round uniform feeding. Analysis of the milk productivity of cows after the first feeding (within 15 days) of Profort showed that the average daily milk yield in animals increased by 6.1%, compared with animals in the control group. Milk productivity of cows after repeated feeding of the preparation remained higher by 4.6 % than in the control animals. After the end of the experiment and the next feeding of the preparation, the difference in average daily milk yield was 1.9 kg (4.9%) in favor of the cows of the experimental group. Gross milk yield during the experiment in the experimental group was higher by 5.94%. The use of the enzyme-pobiotic feed additive Profort improves liver function in lactating cows. Total protein indicators increased by 1.46%, albumins - by 16.5% (P≤0.05), AST activity decreased by 15% (P≤0.05) and ALT - by 17.5%; the level of urea, triglycerides and cholesterol decreased by 11, 20 and 30.5%, respectively, which indicates an improvement in the metabolic state.

Keywords: cows, Holstein breed, feeding, enzyme-probiotic feed additive Profort, lactation, average daily milk yield, biochemical blood parameters

Acknowledgments: the work was performed in accordance to the plan of research works Altai State Agrarian University (No. 124122000001-3).

For citation: Afanasyeva AI, Sarychev VA. Modification of metabolism and productivity of dairy cattle using the enzyme-probiotic feed additive Profort. Animal Husbandry and Fodder Production. 2025;108(1):115-127. (In Russ.). https://doi.org/10.33284/2658-3135-108-1-115

 

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            Information about the authors:

            Antonina I Afanasyeva, Dr. Sci. (Biology), Professor, Head of the Department of General Biology, Biotechnology and Animal Breeding, Altai State Agrarian University, Krasnoarmeysky Ave., 98, Altai Krai, Barnaul, 656049, tel.: 8-905-928-32-80.

            Vladislav A Sarychev, Cand. Sci (Biology), Associate Professor of the Department of General Biology, Biotechnology and Animal Breeding, Altai State Agrarian University, Krasnoarmeysky Ave., 98, Altai Krai, Barnaul, 656049, tel.: 8-902-140-62-71.

The article was submitted 01.11.2024; approved after reviewing 06.02.2025; accepted for publication 17.03.2025.

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