GnRH analogue treatment on LH surge day 0 followed by single transvaginal artificial insemination with frozen semen on day 5 in bitches

Reproductive parameters were evaluated in 19 and 14 estrous beagles that received 100 µg of gonadotropin-releasing hormone (GnRH) and saline treatment, respectively, on the day of luteinizing hormone (LH) surge (Day 0; estimated by serial progesterone assay) and balloon catheter-aided single transva...

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Detalles Bibliográficos
Autores principales: OHTAKI, Tadatoshi, KOGA, Yasuna, ONO, Mamiko, WATANABE, Gen, TAYA, Kazuyoshi, TSUMAGARI, Shigehisa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Japanese Society of Veterinary Science 2014
Materias:
Theriogenology
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4349550/
https://www.ncbi.nlm.nih.gov/pubmed/25311914
http://dx.doi.org/10.1292/jvms.14-0270
Descripción
Sumario:Reproductive parameters were evaluated in 19 and 14 estrous beagles that received 100 µg of gonadotropin-releasing hormone (GnRH) and saline treatment, respectively, on the day of luteinizing hormone (LH) surge (Day 0; estimated by serial progesterone assay) and balloon catheter-aided single transvaginal artificial insemination of frozen semen on Day 5. Although the conception rate and litter size were similar between the GnRH and saline groups, the concentration of LH peak was significantly higher in GnRH-treated bitches (P<0.01). In addition, the actual LH surge did not occur on the estimated Day 0 in one saline-treated bitch. In clinical practice that daily progesterone assay is difficult, administration of GnRH on estimated Day 0 would be recommended to induce or enhance the LH surge for timely and successful insemination.

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