Efficacy of a Monovalent Leptospira borgpetersenii Serovar Hardjo Strain hardjobovis Vaccine Protocol on Measures of Fertility in Holstein Dairy Cattle

Authors

  • A. H. Plunkett University of California, Department ofAnimal Science, Davis, CA 95156
  • T. W. Graham Veterinary Consulting Services, Davis, CA 95156
  • A. M. Oberbauer University of California, Department ofAnimal Science, Davis, CA 95156
  • T. R. Famula University of California, Department ofAnimal Science, Davis, CA 95156

DOI:

https://doi.org/10.21423/aabppro20114024

Keywords:

Leptospira, reproductive management, dairy cattle, monovalent strain, vaccine, oxytetracycline, strain hardjobovis

Abstract

Leptospira borgpetersenii serovar Hardjo strain hardjobovis may hamper reproductive efficiency of dairy cattle, and controlling infection would be of economic value. To assess the efficacy of a commercial monovalent strain of L. borgpetersenii serovar Hardjo hardjobovis vaccine the vaccine was administered in conjunction with systemic oxytetracycline. Cows and heifers (n= 1,894) from a dairy herd naturally infected with strain hardjobovis were enrolled in a prospective, randomized, clinical trial.

Cover image of the 44th Conference Proceedings: photo of the skyline of St. Louis, Missouri, site of the 2011 AABP Conference. Yellow background.

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Published

2011-09-22

Issue

2011

Section

Research Summaries 2