J. Endocrinol. Invest. 14: 147-150,1991
SHORT COMMUNICATION
Effect of gestational mastectomy on postpartum gonadotropin releasing hormone and thyrotropin releasing hormone-induced luteinizing hormone and prolactin response in first lactation holstein cattle L.C. Holt, A.M. Akers, C.J. Denbow, F.C. Gwazdauskas and W.E. Vinson Department of Dairy Science, College of Agriculture and Life Sciences, Virginia Agricultural Experiment Station, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061 , USA. ABSTRACT. First lactation Holstein cows were divided into two treatment groups to evaluate thyrotropin releasing hormone (TRH, 0.25 )..I.g/kg body weight) and gonadotropin releasing hormone (GnRH; 200 )..I.g) induced secretion of prolactin (PRL) and luteinizing hormone (LH) on days 7 and 16 postpartum. Disregarding treatment, LH response was greater (p
SHORT COMMUNICATION
Effect of gestational mastectomy on postpartum gonadotropin releasing hormone and thyrotropin releasing hormone-induced luteinizing hormone and prolactin response in first lactation holstein cattle L.C. Holt, A.M. Akers, C.J. Denbow, F.C. Gwazdauskas and W.E. Vinson Department of Dairy Science, College of Agriculture and Life Sciences, Virginia Agricultural Experiment Station, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061 , USA. ABSTRACT. First lactation Holstein cows were divided into two treatment groups to evaluate thyrotropin releasing hormone (TRH, 0.25 )..I.g/kg body weight) and gonadotropin releasing hormone (GnRH; 200 )..I.g) induced secretion of prolactin (PRL) and luteinizing hormone (LH) on days 7 and 16 postpartum. Disregarding treatment, LH response was greater (p
