Ovarian responses of anestrous ewes to the 'ram effect'
| العنوان: | Ovarian responses of anestrous ewes to the 'ram effect' |
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| المؤلفون: | Mats Forsberg, E. Rubianes, Rodolfo Ungerfeld, A. Pinczak |
| المصدر: | Canadian Journal of Animal Science. 82:599-602 |
| بيانات النشر: | Canadian Science Publishing, 2002. |
| سنة النشر: | 2002 |
| مصطلحات موضوعية: | Estrous cycle, endocrine system, medicine.medical_specialty, medicine.drug_class, Luteal phase, Biology, Andrology, Follicle-stimulating hormone, Endocrinology, Food Animals, Internal medicine, Follicular phase, medicine, Animal Science and Zoology, Delayed ovulation, Gonadotropin, Corriedale, Luteinizing hormone |
| الوصف: | Ovarian responses to the "ram effect" were characterized in 11 anestrous Corriedale ewes. In seven ewes, there was a luteinizing hormone (LH) surge 36.7 ± 12.3 h (mean ± SEM) after ram introduction and a concurrent increase (P < 0.05) in serum follicle stimulating hormone (FSH). Ovarian responses (monitored ultrasonographically) were highly variable. One ewe had two luteal phases (short and normal, respectively), three had delayed ovulation (days 5–7), two had luteinization of non-ovulatory follicles, one developed a luteinized follicular cyst, and four had no luteal phase. Key words: Ram effect, ovarian follicular dynamics, seasonal anestrus, ultrasonography, gonadotropin |
| تدمد: | 1918-1825 0008-3984 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::db31584d515c6468a387646a0842b15f https://doi.org/10.4141/a02-005 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........db31584d515c6468a387646a0842b15f |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19181825 00083984 |
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