Efficacy of Three Synchronization Protocols on the Pregnancy Rate in Lactating Dairy Crossbred Cows after Fixed Time Artificial Insemination

Essam Almadaly, Ibrahim Mansour, Nabil Mansour, Aly Karen, Bahy Serur and Ibrahim M. Abd El-Razek

Asian Journal of Animal and Veterinary Advances 11 ( 5 ): 288 - 295 , 2016