Cystic ovaries – the cause of the barrenness of cows on dairy farms in the Amur Region and Primorye

Authors

  • Nataliya F. Klyuchnikova Khabarovsk Federal Research Center of the Far Eastern Branch of the Russian Academy of Sciences, Far Eastern Agricultural Research Institute, Khabarovsk, Russia
  • Mikhail T. Klyuchnikov Khabarovsk Federal Research Center of the Far Eastern Branch of the Russian Academy of Sciences, Far Eastern Agricultural Research Institute, Khabarovsk, Russia
  • Elena M. Klyuchnikova Khabarovsk Federal Research Center of the Far Eastern Branch of the Russian Academy of Sciences, Far Eastern Agricultural Research Institute, Khabarovsk, Russia

Keywords:

cow, ovarian epidermoid, servicing bull, genetic marker, hereditary predisposition

Abstract

Over the last 56 years the gynecological exam of 102038 dry cows was conducted. 1041 animal units had ovarian epidermoid (1.02 %), including those with polycystic ovarian syndrome – 92 animal units, which is 0.09 % of the total number of dry cows. In order to find out genetic markers of the hereditary predisposition of cows to this pathology, the types of haptoglobin and ceruloplasmin and blood antigens L, J, F, Z in the blood of 643 animal units were determined by horizontal starch gel electrophoresis. Grouping of cows according to the types of haptoglobin revealed a significant variability in the occurrence of ovarian cysts. Among animal units with
the Hp 1-1 haptoglobin type, 23 animal units (20.2 %) were ill, in the group of cows with Hp 2-1 haptoglobin, respectively, 11 animal units (3.2 %), among cows with Hp 2-2, sick cows were not identified. Animals with ovarian epidermoid are characterized by the absence of ceruloplasmin BB in the blood. Units with antigens J, F had a higher milk production, but more often they fell ill and gave offspring less viable than the units that did not have these blood factors. The presence of L and Z antigens acted in the opposite direction (compared with J and F antigens).

Author Biographies

Nataliya F. Klyuchnikova, Khabarovsk Federal Research Center of the Far Eastern Branch of the Russian Academy of Sciences, Far Eastern Agricultural Research Institute, Khabarovsk, Russia

Doctor of Sciences in Agriculture, Deputy Director for Science

http://orcid.org/0000-0003-0510-1196

Mikhail T. Klyuchnikov, Khabarovsk Federal Research Center of the Far Eastern Branch of the Russian Academy of Sciences, Far Eastern Agricultural Research Institute, Khabarovsk, Russia

Candidate of Sciences in Agriculture, Senior Researcher 

http://orcid.org/0000-0001-7609-382X

Elena M. Klyuchnikova, Khabarovsk Federal Research Center of the Far Eastern Branch of the Russian Academy of Sciences, Far Eastern Agricultural Research Institute, Khabarovsk, Russia

Researcher

http://orcid.org/0000-0001-9861-8738

Downloads

Published

2023-09-14

How to Cite

Klyuchnikova Н. Ф., Klyuchnikov М. Т., & Klyuchnikova Е. М. (2023). Cystic ovaries – the cause of the barrenness of cows on dairy farms in the Amur Region and Primorye. Vestnik of the Far East Branch of the Russian Academy of Sciences, (3), 153–160. Retrieved from http://vestnikdvo.ru/index.php/vestnikdvo/article/view/1109

Issue

No. 3 (2023)

Section

Зоотехния и ветеринария