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Journal of equine science2017; 28(4); 159-161; doi: 10.1294/jes.28.159

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

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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Publication Date: 2017-12-16 PubMed ID: 29270074PubMed Central: PMC5735314DOI: 10.1294/jes.28.159Google Scholar: Lookup
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Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

This study examines how effective rebreeding is for mares who have had a pregnancy loss within the same reproductive season in Hidaka, Japan. The factors impacting the foaling rate, such as aging and lower body condition scores, are also discussed.

Research Objective

The research focused on identifying the success rate of re-breeding mares that had gone through pregnancy loss within a particular reproductive season. The researchers also aimed to identify the influencing factors that may decrease the foaling rate in Hidaka, Japan.

  • The primary objective was to assess if re-breeding was a viable option for mares who had suffered from a pregnancy loss.
  • Numerous secondary objectives included investigating why the foal rate decreased as the time until a detected pregnancy loss increased, and how a mare’s age and body condition score affected the foaling rate.

Methodology

The sample set for the study included 82 Thoroughbred mares that had experienced pregnancy loss.

  • The main variable of the study was whether the mares could be rebred after a pregnancy loss.
  • The secondary variables considered were the detected time of pregnancy loss, the age of the mares, and their body condition scores.

Results

The resultant foaling rate of the mares rebred after pregnancy loss was 57.3%.

  • The analysis provided clear evidence that the foaling rate decreased as the time period until the detection of a pregnancy loss increased.
  • It also manifested the fact that as the mares grow older, their foaling rate after a pregnancy loss decreases.
  • The study showed the body condition score of the mares played a significant role, where a lower score resulted in a decreased foaling rate.

In conclusion, the study offers valuable insight into the success of rebreeding after a mare has suffered a pregnancy loss and external factors that influence the foaling rate. It hence can contribute to better horse breeding management and practices.

Cite This Article

APA
Miyakoshi D, Sato F, Murase H, Inoue Y, Shikichi M, Iwata K, Okai K, Ito K, Nambo Y. (2017). Foaling rate of mares that were rebred after pregnancy loss in Hidaka, Japan. J Equine Sci, 28(4), 159-161. https://doi.org/10.1294/jes.28.159

Publication

Journal of equine science
ISSN: 1340-3516
NlmUniqueID: 9503751
Country: Japan
Language: English
Volume: 28
Issue: 4
Pages: 159-161

Researcher Affiliations

Miyakoshi, Daisuke
  • Hidaka Horse Breeders Association, Hokkaido 056-0002, Japan.
Sato, Fumio
  • Equine Science Division, Hidaka Training and Research Center, Japan Racing Association, Hokkaido 057-0171, Japan.
Murase, Harutaka
  • Equine Science Division, Hidaka Training and Research Center, Japan Racing Association, Hokkaido 057-0171, Japan.
Inoue, Yuji
  • Inoue Horse Clinic, Hokkaido 056-0001, Japan.
Shikichi, Mitsumori
  • ELM Horse Clinic, Hokkaido 057-0025, Japan.
Iwata, Katsuroku
  • Hidaka Agriculture Mutual Aid Association, Hokkaido 056-0016, Japan.
Okai, Kazuhiko
  • Hidaka Agriculture Mutual Aid Association, Hokkaido 056-0016, Japan.
Ito, Katsumi
  • Hidaka Horse Breeders Association, Hokkaido 056-0002, Japan.
Nambo, Yasuo
  • Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido 080-0834, Japan.

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Citations

This article has been cited 1 times.
  1. Tsuchiya T, Noda R, Ikeda H, Maeda M, Sato F. Relationship between endogenous plasma adrenocorticotropic hormone concentration and reproductive performance in Thoroughbred broodmares. J Vet Intern Med 2021 Jul;35(4):2002-2008.
    doi: 10.1111/jvim.16145pubmed: 34028083google scholar: lookup
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