REPRODUCTIVE EFFICIENCY IN MORGAN HORSES

Authors

  • Tisa Echevarria Leite Universidade Federal de Pelotas (UFPEL), Pelotas, Rio Grande do Sul, Brasil
  • Márcia de Oliveira Karam Universidade Federal de Pelotas (UFPEL), Pelotas, Rio Grande do Sul, Brasil
  • Leonardo Porto Alves Universidade de Passo Fundo (UPF), Passo Fundo, Rio Grande do Sul, Brasil
  • Cláudio Alves Pimentel Universidade Federal de Pelotas (UFPEL), Pelotas, Rio Grande do Sul, Brasil
  • Sandra M. da Encarnação Fiala Universidade Federal de Pelotas (UFPEL), Pelotas, Rio Grande do Sul, Brasil

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.

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Published

2011-06-24

How to Cite

LEITE, Tisa Echevarria; KARAM, Márcia de Oliveira; ALVES, Leonardo Porto; PIMENTEL, Cláudio Alves; FIALA, Sandra M. da Encarnação. 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: 28 dec. 2025.

Issue

Vol. 12 No. 2 (2011)

Section

Animal Production

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Copyright (c) 2011 Brazilian Animal Science/ Ciência Animal Brasileira

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