Mastitis control options (MCOs) are management actions that are adopted to prevent mastitis in dairy herds. In this study, the psychological constructs attitude, social norms and perceived behavioral control are used to explain farmers' adoption of MCOs. So far, little research has used psychological constructs to explain adoption of MCOs. Based on recommendations by a Swedish dairy association (Växa) aimed at farmers, a total of 15 different management areas, representing MCOs for contagious and environmental bacteria, were used to characterize adoption behaviors. A total of 286 Swedish full-time farmers specializing in dairy production participated in the survey. Four different farmer groups were identified through a cluster analysis of similarities in how farmers adopted MCOs together with data on bulk milk somatic cell count and subjectively evaluated somatic cell counts on the farms. Regression analyses were performed to test whether the psychological constructs could explain differences in adoption across the MCO groups. Results revealed that farmers' decisions about which set of mastitis control options to adopt as preventive actions were explained by the farmers' perceived behavioral control of the situation and by differences in subjective norm. The attitude construct did not contribute to predicting the adoption of mastitis control options. Results suggest that work aimed at implementing MCOs should be complemented by programs specifically designed to improve the ability of farmers to use and/or combine MCOs to both alleviate and prevent mastitis. They also suggest that there is little to gain from programs aimed at fostering attitudes to prevent mastitis. We interpret the findings as indicating a need to strengthen perceived behavioral control as well as subjective norms among Swedish farmers' regarding their preventive work with mastitis. Understanding how to affect farmers' behavior, and thus reducing and controlling mastitis, will have positive effects on animal health and welfare in general.

Mastitis in dairy herds is a worldwide problem, with significant implications for milk yields and quality, economic losses, and animal health and welfare - effective control makes a considerable difference to the farmer and the animal. This title includes chapters covering organic dairy herds, dry period infections, and best practice procedures.

Worldwide, mastitis is still one of the most important diseases in the dairy sector. Being a multifactorial disease, caused by multiple pathogens, control remains a difficult issue. Mastitis not only affects the health of milk-producing animals, having consequences for the profitability of dairy farms, it also affects the animal welfare. Moreover, mastitis negatively influences the milk quality having consequences for the dairy processing industry. In other words: mastitis affects a large part of the dairy production chain. Due to ongoing scientific effort, insight in mastitis in the context of increasingly complex farming systems, is improving. This insight leads to better methods to control mastitis, either by prevention or by adequate measures (e.g. therapy) when a cow (or goat or sheep) gets mastitis. This book reflects the current knowledge from all over the world on mastitis as it was presented during the 4th IDF International Mastitis Conference, held in June 2005 in Maastricht, the Netherlands. The papers of the 115 oral presentations and the 13 keynote presentations are reflecting not only the current knowledge of mastitis control but are also giving ideas for future solutions for control measures.

Current, important information on mastitis for all food animal practitioners! Topics will include new perspectives in mastitis control, treatment of clinical mastitis, antimicrobial resistance in mastitis pathogens, the role of diagnostic microbiology in mastitis control programs, update on control of Staph aureus and Strep ag, epidemiology and control of mycoplasma mastitis, managing environmental mastitis, mastitis vaccine strategies, using mastitis records and somatic cell count data, the role of the milking machine in mastitis control, stray voltage and milk quality, communicating and implementing udder health programs, and more!

Bovine Mastitis Control