The Effect of GnRH Injection on Plasma Progesterone Concentrations, Conception Rate and Ovulation Rate in Iranian Holstein Cows

A. Zare Shahneh, Z. Mohammadi, H. Fazeli, M. Moradi Shahre Babak and E. Dirandeh

Journal of Animal and Veterinary Advances 7 ( 9 ): 1137 - 1141 , 2008