Structural and functional characteristics of ovaries of cattle at different stages of the sexual cycle

UDC 636.2: 591.465.31
DOI: 10.36871/vet.zoo.bio.202311002

Authors

Natalya A. Slesarenko,
Anna P. Belyakova,
Polina S. Zagorets,
Moscow State Academy of Veterinary Medicine and Biotechnology – MVA by K. I. Skryabin”, Moscow, Russia

Abstract

The article presents the normative micromorphological characteristics of the ovary of a Blackand- White Holstein cow at different stages of the reproductive cycle (proestrus, estrus, metestrus, anestrus). A complex methodological approach was used, including fine anatomical dissection of freshly extracted eviscerated organs, light microscopy of histological sections of the ovary taken within an hour after slaughter from each individual.
The patterns of structural and functional transformations of the elements of the ovary (corpus luteum and follicles), which are characteristic of the normal course of the ovarian cycle of a cow, are presented. The results obtained are the reference for diagnosing the condition of the gonads in cows.

Keywords

cattle, ovaries, gonads, ovarian cycle, micro-morphological characteristics