Étude Sur La Prevalence De Streptococcus Agalactiae et Staphylococcus Aureus Dans Les Troupeaux Du Quebec Par La Culture Séquentille Du Reservoir

Authors

  • J. M. Guillemette Universite de Montréal, St-Hyacinthe, Qc, Canada
  • E. Bouchard Universite de Montréal, St-Hyacinthe, Qc, Canada
  • M. Bigras-Poulin Universite de Montréal, St-Hyacinthe, Qc, Canada
  • M. Nadeau Laboratoire de Pathologie Animale, St-Hyacinthe, Qc, Canada

DOI:

https://doi.org/10.21423/aabppro19926658

Keywords:

milk production, mastitis control practices, dry cow therapy, teat dipping, S. agalactiae, S. aureus, farm management

Abstract

This study was done on 325 dairy farms in Quebec, Canada to estimate S. agalactiae and S. aureus herd infection prevalence and their impact on milk production and quality. A maximum of 3 bulk tank milk sample were collected in each selected farm for bacteriology and somatic cell counting. A questionnaire for evaluation of farm management and mastitis control practices was administered during the first visit. The study reveals a herd infection prevalence for S. agalactiae and S. aureus of 43% and 93.4% respectively; 4.7% are negative to both bacteria. Adoption on a regular basis of teat dipping of all cows and blanket dry cow therapy is 60.8% and 34% respectively. The high prevalence results for S. agalactiae and S. aureus and the poor adoption of basic mastitis control practices give us a basis to improve upon with a mastitis control program.

Article in French, English and Spanish summaries on PDF

Cover image of the Third Volume of the 25th Conference Proceedings: An earl-morning photo of farmland. A small farm is nestled among rolling hills, fields stretching across a curving road that disappears between dark green trees. The barn is a cheery red color with a tin roof. Beneath the photo is the a statement of the conference's theme in white italics: Challenges of the Bovine Industry in the Twenty-First Century. Deep red background.

Downloads

Published

1992-08-31

Issue

1992: Volume 3

Section

Mastitis

Most read articles by the same author(s)

1 2 > >>