Description of the intramammary infections dynamics in early lactation heifers on organic dairy farms

  • Felipe Peña Mosca Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN, 55108
  • C.J. Dean Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN, 55108
  • L.S. Caixeta Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN, 55108
  • B.J. Heins Department of Animal Science, University of Minnesota, St. Paul, MN, 55108
  • V.S. Mechado Department of Veterinary Sciences, Texas Tech University, Lubbock, TX, 79409
  • P.J. Pinedo Department of Animal Sciences, Colorado State University, Fort Collins, CO, 80521
  • N.R. Noyes partment of Veterinary Population Medicine, University of Minnesota, St. Paul, MN, 55108
Keywords: Staphylococcus mastitis, Streptococcus mastitis, organic dairy

Abstract

Mastitis is one of the most important diseases affecting dairy cows. Mastitis causing microorganisms are usually classified based on their epidemiology and phenotypic characteristics: Staphyloccocus aureus (SAU), non-aureus Staphylococci (NAS), Streptococcus spp. and Streptococcus like organisms (SSLO) and gram negative bacteria (GNB). Reports from previous research have shown that organic farms have an increased prevalence of SAU-intramammary infections (IMI) compared to conventional dairy farms. However, little information exists about the dynamics of IMI in early lactation heifers on organic dairies. The objective of this study was to describe the IMI dynamics in early lactation heifers on organic dairy farms.

Published
2021-10-09
Section
Research Summaries