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