Embryos produced with sexed semen: influence of the stage of embryos, embryo type, parity, quality of the embryo, and period of the year on pregnancy rates in dairy cattle. A longitudinal study

1. Muiño, R.
2. Hernández, J.
3. Gómez, F.
4. Benedito, J.L.
5. Martínez, H.
6. Castillo, C.