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Articles | Volume 65, issue 3
Articles | Volume 65, issue 3
https://doi.org/10.5194/aab-65-353-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/aab-65-353-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 65, issue 3
Original study
 | 
30 Sep 2022
Original study |  | 30 Sep 2022

Relationship between GnRH-induced LH increase profiles in the serum and vaginal mucus of Japanese Black beef cows

Naoaki Yoshimura, Yasuhiro Morita, Mitsuo Yamamoto, Chika Higashine, Koki Takebayashi, Taichi Kumegawa, Yoshimichi Higashiyama, Masatoshi Niimi, Fuminori Tanihara, and Takeshige Otoi

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Short summary
This study aimed to investigate the relationship between increases in luteinizing hormone (LH) profiles induced by gonadotropin-releasing hormone (GnRH) in the serum and vaginal mucus of Japanese Black beef cows. A peak serum LH concentration was identified at 2.5 h post-GnRH administration, with serum concentrations returning to near-pre-GnRH-administration values after 6.5 h, whereas the peak LH concentration of vaginal mucus was identified 4.5 h after GnRH administration.
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