Effect of the progestagen treatment length and different eCG dosages on the pregnancy rate of ewes after fixed-time superficial transcervical insemination - Iwamura, J. [UNESP]; Oba, Eunice [UNESP]; Souza, M. I. L.; Pampani, F. E.; Leal, L. S. [UNESP]; Pavao, G. [UNESP]; Bittencourt, R. F. [UNESP] (Wiley-Blackwell Publishing, Inc, 2008)