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ID 117654
Title Alternative
Relationship between GnRH-induced LH increase profiles
Author
Yoshimura, Naoaki Tokushima University
Morita, Yasuhiro Obihiro University of Agriculture and Veterinary Medicine
Yamamoto, Mitsuo Tokushima University
Higashine, Chika Tokushima University
Takebayashi, Koki Tokushima University
Kumegawa, Taichi Tokushima University
Higashiyama, Yoshimichi JTEKT Corporation
Niimi, Masatoshi JTEKT Corporation
Content Type
Journal Article
Description
This study aimed to investigate the relationship between increases in the luteinizing hormone (LH) profiles in the serum and vaginal mucus of cows induced by gonadotropin-releasing hormone (GnRH). Samples for LH determination were collected from Japanese Black beef cows during estrus, which was induced with a controlled internal progesterone-releasing device and the administration of cloprostenol immediately before GnRH administration and every 30 min from the start of GnRH administration until 6.5 h. The peak serum LH concentration was clearly 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 vaginal mucus LH concentration was identified 4.5 h after GnRH administration. These results indicate that the LH secretion peak in vaginal mucus appeared about 2 h after peak LH secretion in the serum.
Journal Title
Archives Animal Breeding
ISSN
23639822
Publisher
Copernicus Publications
Volume
65
Issue
3
Start Page
353
End Page
356
Published Date
2022-09-30
Rights
This work is distributed under the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/).
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Publisher
departments
Bioscience and Bioindustry