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 …

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 …

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

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) …

Bovine leukaemia virus (BLV) causes lymphosarcoma and persistent lymphocytosis (PL).
Some MHC class II gene polymorphisms have been associated with resistance and …

Productivity in dairy cattle and buffaloes depends on the genetic factors governing the
production of milk and milk constituents as well as genetic factors controlling disease …

Relationships between genetic measures of mastitis (somatic cell score, score for clinical
mastitis, and scores for IMI with major or minor pathogens) and immunological parameters …

The importance of the dry period, with respect to udder health, productivity, and overall
health in the next lactation, has been well documented [1–6]. In the absence of effective …

Bovine mastitis is an infectious disease with a major economic influence on the dairy
industry worldwide. Many factors such as environment, pathogen, and host affect …