Influence of maternal environment on the number of transferable embryos obtained in response to superovulatory FSH treatments in ewes
2003
Gonzalez-Bulnes, A. ((Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria, Madrid (Espagne). Departamento de Reproduccion Animal)) | Garcia-Garcia, R.M. | Castellanos, V. | Santiago-Moreno, J. | Ariznavarreta, C. | Dominguez, V. | Lopez-Sebastian, A. | Tresguerres, J.A.F. | Cocero, M.J.
In a first experiment, embryo viability was estimated after recovery in the uterus or the oviduct of 70 Manchega ewes following a treatment of superovulation with decreasing doses of OVAGEN(TM). Fewer viable embryos (5.6 +/- 0.9 vs. 8.3 +/- 0.8, P 0.05) and more degenerative embryos (31.3 percent vs. 6.8 percent, P 0.005) were obtained from the uterus than from the oviduct respectively. In a second experiment performed on 14 ewes, embryo viability was analyzed in relation to the follicular population estimated by ultrasonography (follicles /
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