OVARIAN MORPHOMETRY AND HORMONAL CORRELATIONS OF PROGESTERONE AND CORTISOL IN NO PREGNANT ZEBU COWS

Authors

  • Marcelo George Mungai Chacur Universidade do Oeste Paulista (UNOESTE), Presidente Prudente, São Paulo, Brasil
  • Nayara Coutinho Valentim Universidade do Oeste Paulista (UNOESTE), Presidente Prudente, São Paulo, Brasil
  • Eunice Oba Universidade Estadual Paulista (UNESP), Botucatu, São Paulo, Brasil
  • Sérgio do Nascimento Kronka Universidade do Oeste Paulista (UNOESTE), Presidente Prudente, São Paulo, Brasil

Keywords:

Animal reproduction

Abstract

The study of ovarian morphometry is directly related to its practical applications to interpret the examination of the reproductive tract of the cow. The objective of this work was to study the morphometry and hormonal correlations in ovaries collected in slaughterhouse between 7 and 14 days post estrus in no pregnant zebu cows. One hundred fourteen pairs of ovaries were collected from slaughterhouse, measured in thickness, length, width and volume, diameter and volume of the follicle, diameter and area of the corpus luteum. Significative differences were observed for widths of (1.95 cm and 1.83 cm) and volume of (7.26 mL and 6.23 mL) of left and right ovaries respectively. For size and volume of follicles, and diameter and area of the corpus luteum, there was no significative difference between the sides. There was correlation (p<0.01) between the volume of the left ovary and the area of the corpus luteum. The corpus luteum of the massive and protuberant type were present in 43.39% of 53 ovaries, predominating in relation to type of cavity and inclusion. There was influency of corpus luteum area in size ovary. There was no correlation between progesterone production by corpus luteum and cortisol secretion.  

KEY WORDS: Bovine, corpus luteum, follicle, slaughterhouse.

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Published

2009-09-30

How to Cite

CHACUR, Marcelo George Mungai; VALENTIM, Nayara Coutinho; OBA, Eunice; KRONKA, Sérgio do Nascimento. OVARIAN MORPHOMETRY AND HORMONAL CORRELATIONS OF PROGESTERONE AND CORTISOL IN NO PREGNANT ZEBU COWS. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 10, n. 3, p. 870–878, 2009. Disponível em: https://revistas.ufg.br/vet/article/view/2445. Acesso em: 13 dec. 2025.

Issue

Vol. 10 No. 3 (2009)

Section

Veterinary Medicine

License

Copyright (c) 2009 Brazilian Animal Science/ Ciência Animal Brasileira

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