Gestation length related to the age in Thoroughbred mares, to placenta’s and newborn foal’s weight and parturition time

Authors

  • Mario Kurtz Filho Universidade Federal de Santa Maria, Departamento de Morfologia, Santa Maria, RS
  • Neiva Medianeira Deprá Haras Santa Maria de Araras, São José dos Pinhais, PR
  • Joaquin Lopes de Alda Haras Santa Maria de Araras, São José dos Pinhais, PR
  • Inês Nicoloso de Castro Haras Santa Maria de Araras, Bajé, RS
  • Flávio Desessards De La Corte Universidade Federal de Santa Maria, Departamento de Clinica de Grandes Animais, Santa Maria, RS
  • José Henrique Souza da Silva Universidade Federal de Santa Maria, Departamento de Zootecnia, Santa Maria, RS
  • Carlos Antonio Mondino Silva Universidade Federal de Santa Maria, Departamento de Clinica de Grandes Animais, Santa Maria, RS

DOI:

https://doi.org/10.11606/issn.2318-3659.v34i1p37-40

Keywords:

Mares, Newborn animals, Foals, Parturition, Placenta, Postpartum period

Abstract

This study was performed with the aim of determining physiologic parameters regarding post foaling behavior in the mare, puerperium and foal. Three hundred and ninety deliveries of Thoroughbred mares were observed between July, 1983 and November, 1992. Older mares produced heavier foals and placentae. The mare’s age had no influence on gestational length, and this parameter was not related to the moment of conception or to the foal’s weight. Older mares, with a healthy endometrium, eliminated heavier placentae compared to younger, healthy mares. Most of deliveries (87.54%) occurred at night (between 6:00 p.m. and 7:00 a.m.), when environmental activities were at a minimum.

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Published

1997-02-01

Issue

Vol. 34 No. 1 (1997)

Section

ANIMAL REPRODUCTION

License

The journal content is authorized under the Creative Commons  BY-NC-SA  license (summary of the license: https://creativecommons.org/licenses/by-nc-sa/4.0 | full text of the license: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode) 

How to Cite

1.
Kurtz Filho M, Deprá NM, Alda JL de, Castro IN de, De La Corte FD, Silva JHS da, et al. Gestation length related to the age in Thoroughbred mares, to placenta’s and newborn foal’s weight and parturition time. Braz. J. Vet. Res. Anim. Sci. [Internet]. 1997 Feb. 1 [cited 2024 Nov. 28];34(1):37-40. Available from: https://revistas.usp.br/bjvras/article/view/50235