Foaling rate of mares that were rebred after pregnancy loss in Hidaka, Japan

Daisuke MIYAKOSHI; Fumio SATO; Harutaka MURASE; Yuji INOUE; Mitsumori SHIKICHI; Katsuroku IWATA; Kazuhiko OKAI; Katsumi ITO; Yasuo NAMBO

doi:10.1294/jes.28.159

Note

Foaling rate of mares that were rebred after pregnancy loss in Hidaka, Japan

Daisuke MIYAKOSHI, Fumio SATO, Harutaka MURASE, Yuji INOUE, Mitsumori SHIKICHI, Katsuroku IWATA, Kazuhiko OKAI, Katsumi ITO, Yasuo NAMBO

Author information

Daisuke MIYAKOSHI
Hidaka Horse Breeders Association, Hokkaido 056-0002, Japan
Fumio SATO
Equine Science Division, Hidaka Training and Research Center, Japan Racing Association, Hokkaido 057-0171, Japan
Harutaka MURASE
Equine Science Division, Hidaka Training and Research Center, Japan Racing Association, Hokkaido 057-0171, Japan
Yuji INOUE
Inoue Horse Clinic, Hokkaido 056-0001, Japan
Mitsumori SHIKICHI
ELM Horse Clinic, Hokkaido 057-0025, Japan
Katsuroku IWATA
Hidaka Agriculture Mutual Aid Association, Hokkaido 056-0016, Japan
Kazuhiko OKAI
Hidaka Agriculture Mutual Aid Association, Hokkaido 056-0016, Japan
Katsumi ITO
Hidaka Horse Breeders Association, Hokkaido 056-0002, Japan
Yasuo NAMBO
Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido 080-0834, Japan

Keywords: equine reproduction, foaling rate, mare, pregnancy loss, Thoroughbred

JOURNAL FREE ACCESS

2017 Volume 28 Issue 4 Pages 159-161

DOI https://doi.org/10.1294/jes.28.159

Details

Abstract

The purpose of this study was to evaluate foaling rates of mares that were rebred after the pregnancy loss in same reproductive season and to examine factors influencing them in Hidaka, Japan. The study included 82 Thoroughbred mares that had experienced pregnancy loss. The foaling rate of the mares that were rebred after pregnancy loss was 57.3%. The foaling rate decreased as the period until detection of pregnancy loss increased. Aging and lower body condition score of mares decreased the foaling rate.

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