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Plasma profile of follicle-stimulating hormone and sex steroid hormones after a single epidural administration of follicle-stimulating hormone via caudal vertebrae in Holstein dry cows.
Sakaguchi, Kenichiro; Suda, Tomoko; Ninpetch, Nattapong; Kawano, Kohei; Yanagawa, Yojiro; Katagiri, Seiji; Yoshioka, Koji; Nagano, Masashi.
Afiliação
  • Sakaguchi K; Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan.
  • Suda T; Institute of Cell Biology, School of Biological Sciences, College of Science and Engineering, University of Edinburgh, Edinburgh, UK.
  • Ninpetch N; National Institute of Animal Health, National Agriculture and Food Research Organization, Tsukuba, Japan.
  • Kawano K; Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan.
  • Yanagawa Y; Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan.
  • Katagiri S; Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan.
  • Yoshioka K; Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan.
  • Nagano M; National Institute of Animal Health, National Agriculture and Food Research Organization, Tsukuba, Japan.
Anim Sci J ; 93(1): e13696, 2022.
Article em En | MEDLINE | ID: mdl-35195318
The conventional follicle-stimulating hormone (FSH) treatment for bovine superstimulation involves multiple intramuscular injections, which is stressful for animals and onerous. We herein investigated whether a single epidural injection of porcine FSH (pFSH) can induce superovulation and peripheral concentrations of pFSH and steroid hormones after the treatment in Holstein dry cows. We intramuscularly administered pFSH twice daily to three cows for 3 days (control) or a single epidural pFSH administration (epidural). Numbers of follicles (≥10 mm in diameter) at estrus and corpora lutea at luteal phase were counted by ultrasonography. Blood was sampled from 0 to 104 h after the first pFSH administration and plasma pFSH, progesterone, androstenedione, testosterone, and estradiol-17ß concentrations were measured. Numbers of follicles (control: 18.3 ± 7.5, epidural: 15.7 ± 4.0; mean ± SD) and corpora lutea (control: 7.3 ± 4.2, epidural: 8.0 ± 2.6) were similar between both treatments. Plasma pFSH concentrations were higher in epidural than in control (p < 0.01). Although no significant differences were observed in progesterone, androstenedione, or estradiol-17ß concentrations between the groups, testosterone concentrations were slightly lower with the epidural treatment than with the control treatment (p = 0.08). In conclusion, superovulation was induced by a single epidural injection of pFSH, which achieved higher pFSH level than the multiple injections in Holstein dry cows.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Cóccix Limite: Animals Idioma: En Revista: Anim Sci J Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Cóccix Limite: Animals Idioma: En Revista: Anim Sci J Ano de publicação: 2022 Tipo de documento: Article