Various body sites of vertebrates provide stable and nutrient-rich ecosystems for a diverse
range of commensal, opportunistic, and pathogenic microorganisms to thrive. The collective …

Intramammary infections of dairy cows with Gram-positive bacteria such as Staphylococcus
aureus (major cause of mastitis) have received a lot of attention because of their major …

Genetic variability of mastitis resistance is well established in dairy cattle. Many studies
focused on polygenic variation of the trait, by estimating heritabilities and genetic correlation …

The primary phagocytic cells of the bovine mammary gland, polymorphonuclear neutrophil
leukocytes (PMN), and macrophages, comprise the first line of defense against invading …

Dairy cattle are more susceptible to mastitis during the periparturient period. It is well
established that the incidence of mastitis with respect to lactation stage are directly related to …

Because the bovine mammary gland is constantly challenged by a variety of contagious and
environmental pathogens, maintenance of mammary health may be best thought of in terms …

Potential associations were investigated between bovine leucocyte antigen (BoLA) alleles
and occurrence of disease. Cows (Holstein n= 835; Jersey n= 66) were examined for …

Selective breeding for disease resistance utilises proven animal breeding methods to
improve animal health, welfare and productivity. Unsurprisingly, it is receiving more and …

Heyen, DW, JI Weller, M. Ron, M. Band, JE Beever, E. Feldmesser, Y. Da, GR Wiggans, PM
VanRaden, and HA Lewin. A genome scan for QTL influencing milk production and health …

Data collected from 328 Canadian Holsteins in a research herd at the University of Guelph
were used to study associations among expression of bovine leukocyte antigen (BoLA) …