Comparison of the effects of Presynch-Ovsynch, Presynch-Ovsynch+CIDR, and G6G protocols on the reproductive performance of lactating Holstein cows in the postpartum period
Hesam Kohsari* and Khatereh Berenjian Hesam KOHSARI*, DVM, PhD, (Corresponding author, e-mail: kohsari.hesam@yahoo.com), Department of Veterinary, Agriculture Faculty, Kermanshah Branch,
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