Effects of vaccination against reproductive diseases on reproductive performance of lactating dairy cows submitted to AI》.pdf

Animal Reproduction Science 137 (2013) 156–162 Contents lists available at SciVerse ScienceDirect Animal Reproduction Science j o u rn a l h o m e pa g e : w w w. elsev /locate/ani repros ci Effects of vaccination against reproductive diseases on reproductive performance of lactating dairy cows submitted to AI M.H.C. Pereira a , R.F. Cooke b , A.A. Alfieri c , J.L.M. Vasconcelos a,∗ a Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Produc¸ ão Animal, Botucatu, SP 18618-000, Brazil b Oregon State University, Eastern Oregon Agricultural Research Center, Burns, OR 97720, USA c Universidade Estadual de Londrina, Centro de Ciências Agrárias, Departamento de Medicina Veterinária Preventiva, Londrina, PR 86051-990, Brazil a r t i c l e i n f o a b s t r a c t Article history: Four experiments evaluated the effects of vaccination against bovine herpesvirus-1 (BoHV- Received 20 November 2012 1), bovine viral diarrhea virus (BVDV), and Leptospira spp. on reproductive performance of Received in revised form lactating dairy cows without (experiments 1, 2, and 3) or with previous vaccination against 24 December 2012 these diseases (experiment 4). Cows were assigned to a fixed-time AI protocol (FTAI; d Accepted 29 December 2012 −11 to 0) in all experiments, as well as AI 12 h upon estrus detection in experiment 3. Available online 10 January 2013 Pregnancy status was determined with transrectal ultra