More male calves born after Presynch-Ovsynch protocol with 24-hour timed AI in dairy cows

Autor: Youssefi, R., Vojgani, M., Gharagozlou, F., Akbarinejad, V.
Zdroj: In Theriogenology 15 March 2013 79(5):890-894
Databáze: ScienceDirect