| Registro completo |
| Provedor de dados: |
OAK
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| País: |
Japan
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| Título: |
Seasonal changes in serum progesterone levels in Thoroughbred racehorses in training
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| Autores: |
TAKAHASHI, Yuji
AKAI, Makoto
MURASE, Harutaka
NAMBO, Yasuo
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| Data: |
2015
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| Ano: |
2015
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| Palavras-chave: |
Racehorse
Progesterone
Seasonal change
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| Resumo: |
The objective of the present study was to verify the seasonal luteal activity of racehorses in training in Japan from March to August. We allocated 102 horses into a luteal activity group and non-luteal activity group. The luteal activity group included horses with serum progesterone levels that were consistently >1 ng/ml and changed by ± 1 ng/ml. In contrast, the progesterone levels of the non-luteal activity group were consistently <1 ng/ml. In late spring (from May 1 to June 30) and summer (from July 1 to August 31), the percentage of horses in the luteal activity group was significantly higher than in early spring (from March 1 to April 30, P<0.01). These findings demonstrate clear seasonal variations in ovarian activity. The present study also suggest that training for a race may not affect ovarian activity in female racehorses.
https://www.jstage.jst.go.jp/article/jes/26/4/26_1518/_article/-char/ja/
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| Idioma: |
Inglês
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| Identificador: |
http://ir.obihiro.ac.jp/dspace/handle/10322/4290
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| Editor: |
Japanese Society of Equine Science
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| Direitos: |
This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License <http://creativecommons.org/licenses/by-nc-nd/3.0/>.
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