Morphometric correlation of the ovary of bovine females on different reproductive stages

Authors

  • Aparecida Alves do Nascimento Universidade Federal Rural do Rio de Janeiro, Departamento de Biologia Animal, Seropédica, RJ
  • Nadja Lima Pinheiro Universidade Federal Rural do Rio de Janeiro, Departamento de Biologia Animal, Seropédica, RJ
  • Armando Sales Universidade Federal Rural do Rio de Janeiro, Departamento de Biologia Animal, Seropédica, RJ
  • João Henrique Moreira Viana Embrapa Gado de Leite, Juiz de Fora, MG

DOI:

https://doi.org/10.1590/S1413-95962003000200006

Keywords:

Bovine, Ovary, Follicles, Corpus luteum, Morphology

Abstract

The aim of this study was to evaluate morphometric characteristics of bovine ovaries recovered on different reproductive stages. The ovaries used (N=200) were recovered at slaughterhouses and sent to the laboratory, were the size of the ovary, of follicles and of corpus luteum were measured. The pairs of ovaries were classified according to the reproductive stage, and to the estrous cycle or pregnancy stages of the animals from which they were recovered. There was a difference (P;0,05) on organ size between animals presenting estrous cycles or pregnancy, but pregnant cows presented larger corpora lutea and smaller diameter of the largest follicle (P<0,05). Evaluated parameters were affected by estrous cycle and pregnancy stages (P<0,05). There was a significant correlation between ovary and corpus luteum sizes in the animals presenting estrous cycles (R=0.69; P<0,001). In conclusion, ovarian morphologic characteristics changes according to the reproductive stages, could be used as parameters for clinic and functional evaluations of the organ.

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Published

2003-01-01

Issue

Section

UNDEFINIED

How to Cite

1.
Nascimento AA do, Pinheiro NL, Sales A, Viana JHM. Morphometric correlation of the ovary of bovine females on different reproductive stages. Braz. J. Vet. Res. Anim. Sci. [Internet]. 2003 Jan. 1 [cited 2024 Jul. 20];40(2):126-32. Available from: https://www.revistas.usp.br/bjvras/article/view/11373