Management practices associated with the bulk-milk prevalence of Staphylococcus aureus in Canadian dairy farms

Prevention and Control of Sub-Clinical Mastitis (SCM) in Dairy Animals: Participatory On-Farm Trial (OFT) in Bidar District of Karnataka, India

“…Likewise, occurrence of teat cracks and warts had also reduced in the study area. Similar findings were also reported by Mathialagan and Kumarasan (2015) and Riekerink et al (2010) in India. Table 6 shows the antibiotic sensitivity pattern in the form of sensitive, moderately sensitive and resistant for infected milk samples in the study area.…”

Update on Control of Staphylococcus aureus and Streptococcus agalactiae for Management of Mastitis

“…73 Despite this fact, a recent study in Canada revealed that only 72% of herds implemented blanket dry cow treatment. 27 This figure was much lower than the adoption rate of postmilking teat disinfection (96%) from the same study. In a study of the cost-effectiveness of standard mastitis control procedures, blanket dry cow therapy was shown to be one of the few measures that consistently showed a positive net economic benefit.…”

“…At the herd level, infection with S aureus was 43% in a recent US survey and 74% from a Canadian study. 22,27 In a recent study, S aureus was the most commonly isolated pathogen from clinical mastitis samples (13.0%) and the second most commonly isolated pathogen (behind coagulase-negative staphylococci) in subclinical samples (2.4%-3.0%). 28 The cow prevalence of S aureus has been report to be 6.4% in Switzerland and 22.2% in Norway.…”

“…44 In a recent Canadian study, 96% of herds used postmilking teat disinfectant. 27 While overall use is high, it is more difficult to quantify the effectiveness of application. Dipping the teats in disinfectant is recommended over spraying because it provides a more consistent teat coverage and is less expensive.…”

New Perspectives in Udder Health Management

“…Recovery of the "traditional" mastitis pathogens such as S agalactiae or S aureus tends to more frequent in regions that are populated by a greater proportion of smaller herds in which tie stall facilities are used 2 or herds in which the use of well-known preventive strategies such as comprehensive use of intramammary antimicrobials at dry off have not been implemented. 14 In response to the changing distribution of pathogens, udder health programs are increasingly focused on prevention of mastitis caused by environmental pathogens. The term "environmental pathogen" is used to refer to mastitis caused by opportunistic bacteria that reside in the environment of the cows.…”