REPRODUCTIVE EFFICIENCY IN MORGAN HORSES

Authors

  • Tisa Echevarria Leite Universidade Federal de Pelotas
  • Márcia de Oliveira Karam Universidade Federal de Pelotas
  • Leonardo Porto Alves Universidade de Passo Fundo
  • Cláudio Alves Pimentel Universidade Federal de Pelotas
  • Sandra M. da Encarnação Fiala Universidade Federal de Pelotas

DOI:

https://doi.org/10.5216/cab.v12i2.4780

Keywords:

Horse Production

Abstract

The purpose of this paper was to describe the following reproductive parameters observed in mares of the Morgan breed: pregnancy rate (TP), foal rate (CP), average length of the gestation (DG), age at the first parturition (IPP), age (ID), interval from parturition to first service (IPPC) and interval from parturition to conception (IPC), foaling interval (IEP), number of cycles per conception (NC) and services per conception (NS), embryo mortality rate (ME), abortion (A), month of the conception and parturition. Data was obtained from 42 mares in 14 years. Values obtained were: TP 71%; ME 6.2%; A 2.4%; DG 340.2 days; IPP 4.5 years; ID 7.6 years; IPPC 19.0 days; IPC 27.2 days; IEP 374.0 days; NC 1.2 and NS 3.0. The frequency of utilization of the foal heat was 76.1%. The distribution of mating and parturition, in the breeding season, was concentrated in the months of September to December (78.9 and 87.1%, respectively). These data may be useful to genetic improvement of the breed as well as to indicate areas in which research must concentrate for a more profitable husbandry.

KEYWORDS: fertility; horses; Morgan; reproduction.

Downloads

Download data is not yet available.

Author Biographies

Tisa Echevarria Leite, Universidade Federal de Pelotas

Médica Veterinária, MSc, Dra. em Ciências

Márcia de Oliveira Karam, Universidade Federal de Pelotas

Médico Veterinário, Mestre, UFPel

Leonardo Porto Alves, Universidade de Passo Fundo

Médico Veterinário, MSc, Prof. Clínica Médica de Eqüinos, UPF

Cláudio Alves Pimentel, Universidade Federal de Pelotas

Médico Veterinário, Ph.D., Fac. Veterinária, UFPel

Sandra M. da Encarnação Fiala, Universidade Federal de Pelotas

Médico Veterinário, Doutor, Instituto de Biologia, UFPel

Downloads

Published

2011-06-24

How to Cite

LEITE, T. E.; KARAM, M. de O.; ALVES, L. P.; PIMENTEL, C. A.; FIALA, S. M. da E. REPRODUCTIVE EFFICIENCY IN MORGAN HORSES. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 12, n. 2, p. 274–278, 2011. DOI: 10.5216/cab.v12i2.4780. Disponível em: https://revistas.ufg.br/vet/article/view/4780. Acesso em: 22 nov. 2024.

Issue

Vol. 12 No. 2 (2011)

Section

Animal Production

License

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g. in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).