Influence of vaccination with an inactivated or modified live viral reproductive vaccine on reproductive parameters in beef cows

Authors

  • G. A. Perry Department of Animal Sciences, South Dakota State University, Brookings, SD 57007
  • E. L. Larimore Department of Animal Sciences, North Dakota State University, Fargo, ND 58108
  • M. R. Crosswhite Department of Animal Sciences, North Dakota State University, Fargo, ND 58108
  • B. W. Neville Central Grasslands REC, North Dakota State University, Streeter, ND 58483
  • V. Cortese Beef Veterinary Technical Services, Zoetis Animal Health, Florham Park, NJ 07932
  • R. F. Daly Department of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, SD 57007
  • G. Stokka Department of Animal Sciences, North Dakota State University, Fargo, ND 58108
  • J. C. Rodgers Beef Veterinary Technical Services, Zoetis Animal Health, Florham Park, NJ 07932

DOI:

https://doi.org/10.21423/aabppro20163477

Keywords:

vaccine, heifers, modified-live virus, conception rate, calving distribution

Abstract

Previous research has described the detrimental effects of modified-live virus (MLV) vaccines on reproductive parameters in na'ive heifers. Less is known about the patential effects of MLV vaccines on reproductive parameters in well-vaccinated beef herds. This work describes a 2-year study involving 9 herds of well-vaccinated cows and heifers (n=1436) to evaluate whether a pre-breeding MLV or inactivated reproductive vaccine administered per label instructions had negative impacts on conception rates or calving distribution compared to a non-vaccinated control (saline) group.

Cover image of the 49th Conference Proceedings: An image of a herd of Angus cattle grazing in a field at dusk. Yellow background.

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Published

2016-09-15

Issue

2016

Section

Research Summaries 3