@article{article7879f2d2, title = {Effect of calf suckling on oxytocin, prolactin, growth hormone and milk yield in crossbred Gir x Holstein cows during milking}, author = {Negrão, João Alberto and Marnet, Pierre-Guy}, year = {2002}, doi = {10.1051/rnd:2002032}, journal = {Reproduction Nutrition Development} }