ÓÄÊ 591.111.1:616-07
DOI 10.33861/2071-8020-2025-1-16-18
Original Empirical Research
Kulachenko I. V., Masalykina Ya. P.
Abstract. The article presents research results of the black-and-white highly productive dairy cows blood alkali reserve at the beginning of lactation. The value of reserve alkalinity corresponded to the physiological norm in only four of the 27 studied cows (14.81%), averaging 22.15 mmol/l, which indicated a shift in the blood reserve alkalinity to the alkaline side and the alkalosis development. Twenty-one cows (77.78%) had low reserve alkalinity (fluctuations from 12.48 to 18.14 mmol/l) with a minimum normal value of 19.0 mmol/l. This state of reserve alkalinity corresponded to the presence of severe acidosis in cows and has important diagnostic value. It has been shown that the blood acidotic state has the greatest influence on the health of the studied dairy cows and this is an important reason for officially registered cases of cow culling, abortions and stillbirths, as well as common diseases of the reproductive organs.
Key words: cows, lactation, reserve alkalinity, diagnostic value, acidosis, alkalosis.
Author affiliation:
Masalykina Yana P., Ph. D. in Veterinary Medicine, Associate Professor of the Department of Non-Infectious Pathology of the Belgorod State Agricultural University named after V. Y. Gorin; 1, Vavilova st., Mayskiy sttl., Belgorod region, 308503; phone: 8-920-2008055; e-mail: masalykina_jp@bsaa.edu.ru.
Responsible for correspondence with the editorial board: Kulachenko Irina V., Ph. D. in Biology, Associate Professor of the Department of Non-Infectious Pathology of the Belgorod State Agricultural University named after V. Y. Gorin; 1, Vavilova st., Mayskiy sttl., Belgorod region, 308503; phone: 8-920-2017374; e-mail: irinakulachenko@mail.ru.
Conflict of Interest Statement: the authors declare no conflict of interest.
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