Gaponov NV.
Animal Husbandry and Fodder Production. 2025. Vol. 108. No. 3. Р. 209-223.
doi:10.33284/2658-3135-108-3-209
Original article
Enzymatic activity of blood and milk productivity when yellow lupine included in the diets
of lactating cows
Nikolay V Gaponov1
1 All-Russian Lupine Research Institute – Branch of the Federal Williams Research Center of Forage
Production and Agroecology, Michurinskiy, Bryansk region, Russia
1nv.1000@bk.ru, https://orcid.org/0000-0002-5086-7943
Abstract. The present study is devoted to the study of the possible using of yellow lupin (Lupinus luteus L.) of the Bulat variety as an equivalent substitute for protea-new plant-based feeds in the formation of feeding diets for lactating cows. It was found that the inclusion of yellow lupine in the diet of dairy cows had a positive effect on milk yields: in the 2nd experimental group, average daily milk yields increased by 3.97%, in the 3rd – by 7.66%, and in the 4th – by 12.93%. The increased content of yellow lupine in the diets led to a reduction in the consumption of feed and nutrients needed to produce a unit of production. The consumption of metabolic energy in experimental groups (2, 3, and 4) decreased by 3.81%, 7.11%, and 11.45%, respectively, compared with the control group. A reduction in crude protein costs was observed in similar groups by 3.41%, 6.69% and 10.71%. At the same time, the use of yellow lupine improved the characteristics of milk: the protein content increased in (2, 3, and 4) experimental groups by 1.26%, 4.09%, and 6.60%, respectively, which makes the product more valuable and in demand on the market. An analysis of blood biochemical parameters showed that with an increase in milk productivity of the experimental groups, increased activity of the enzymes ALP, ALT and ALT was observed within the physiological standard. The largest increase in ALT enzyme activity was recorded in group 2 – by 5.07%, in group 3 – by 5.90%, and in group 4 – by 12.60%. A similar trend can be seen in the dynamics of AST activity: in-group 2 – by 4.46%, in group 3 – by 8.031%, in group 4 – by 11.25%. A similar pattern is typical for ALP activity: it was higher in (2, 3, and 4) experimental groups by 6.15%, 9.69%, and 11.04%, respectively. As a result, the data obtained indicate that the addition of yellow lupine to the diet of black-and-white cows not only optimizes feed costs and increases productivity, but also improves milk quality, and also stimulates metabolic processes in the body of dairy cows.
Keywords: dairy cattle, lactation, feeding, lupin yellow, conversion, biomarker, aminotransferase, enzyme, blood, metabolism, diet
For citation: Gaponov NV. Enzymatic activity of blood and milk productivity when yellow lupine is included in the diets of lactating cows. Animal Husbandry and Fodder Production. 2025;108(3):209-223. (In Russ.). https://doi.org/10.33284/2658-3135-108-3-209
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Information about the authors:
Nikolay V Gaponov, Cand. Sci. (Biology), Leading Researcher, Department of Lupine Processing and Food Use, All-Russian Lupine Research Institute – Branch of the Federal Williams Research Center of Forage Production and Agroecology, Bryansk region, Bryansk district, Michutinskiy village, st. Beryozovaya, 2 Russia, 241524.
The article was submitted 19.05.2025; approved after reviewing 09.06.2025; accepted for publication 15.09.2025.
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