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

Autor: Plunkett, A. H., Graham, T. W., Oberbauer, A. M., Famula, T. R.
Jazyk: angličtina
Rok vydání: 2011
Předmět:
DOI: 10.21423/aabppro20114024
Popis: 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.
American Association of Bovine Practitioners Proceedings of the Annual Conference, 2011
Databáze: OpenAIRE