Fixed-time AI pregnancy rate following insemination with frozen-thawed or fresh-extended semen in progesterone supplemented CO-Synch protocol in beef cows
| Autor: | Bucher, A., Kasimanickam, R., Hall, J.B., DeJarnette, J.M., Whittier, W.D., Kähn, W., Xu, Z. |
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| Zdroj: | In Theriogenology 2009 71(7):1180-1185 |
| Databáze: | ScienceDirect |
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