未生育母羊在非繁殖季节接受短期孕激素/马绒毛膜促性腺激素治疗后的卵巢反应和生育能力受损。
Ovarian Response and Fertility after Short-Term Progestagen/eCG Treatments Are Compromised in Nulliparous Sheep during Non-Breeding Season.
作者信息
Santos-Jimenez Zurisaday, Martínez-Ros Paula, Encinas Teresa, Morales-Cruz Juan Luis, Guerrero-Gallegos Hugo Zuriel, Gonzalez-Avalos Ramiro, Gonzalez-Bulnes Antonio, Guillen-Muñoz Juan Manuel
机构信息
Departamento de Farmacologia y Toxicologia, Facultad de Veterinaria, UCM, Ciudad Universitaria s/n, 28040 Madrid, Spain.
Departamento de Produccion y Sanidad Animal, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, C/Tirant lo Blanc 7, Alfara del Patriarca, 46115 Valencia, Spain.
出版信息
Vet Sci. 2022 Nov 28;9(12):663. doi: 10.3390/vetsci9120663.
The objective of this investigation was to determine the ovarian response, fertility, and prolificacy of nulliparous sheep when compared to multiparous sheep after a short-term (7 days) CIDR/eCG treatment which was administered during the non-breeding season. All the multiparous sheep, whereas only 54% of the nulliparous ewes, showed signs of estrus. However, 81.8% of the multiparous sheep and 100% of the nulliparous ewes ovulated. Fertility was also low after short-term progesterone treatments during the anestrous season in maiden sheep (30.8 vs. 72.7% in multiparous ewes). Such results indicate significant differences in the response to CIDR/eCG protocols for induction and synchronization of estrus and ovulation between nulliparous and multiparous sheep during the non-breeding season.
本研究的目的是确定在非繁殖季节进行短期（7天）的阴道孕酮释放装置（CIDR）/孕马血清促性腺激素（eCG）处理后，初产绵羊与经产绵羊相比的卵巢反应、繁殖力和产仔数。所有经产绵羊均表现出发情迹象，而初产母羊只有54%表现出发情迹象。然而，经产绵羊中有81.8%排卵，初产母羊则100%排卵。在初情期母羊的乏情季节进行短期孕酮处理后，繁殖力也较低（初产母羊为30.8%，经产母羊为72.7%）。这些结果表明，在非繁殖季节，初产绵羊和经产绵羊对CIDR/eCG方案诱导发情和排卵的反应存在显著差异。
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