Bonnie Mallard

We can now find the best immune systems The High Immune Response (HIR) patented test system developed by the University of Guelph allows for the identification of cows or calves in your herd with the best immune responses. We found that cows with optimal immune responses, or HIR cows, have less disease, improved milk and colostrum quality, and respond better to vaccination.In fact, HIR cows have b ...

1. IntroductionMastitis, generally defined as the inflammation of the mammary gland, is a costly and complex disease associated with variable origin, severity and outcome depending on the environment, pathogen and host (De Vliegher et al., 2012; Schukken et al., 2011). Mastitis is caused when pathogenic bacteria enter the sterile environment of the mammary gland, often as a result of disruption of ...

Take-Home Message The immune system is the body’s defense system that provides disease resistanceThe immune system is genetically regulated and can be modified by genetic selectionThe University of Guelph award-winning patented High Immune Response (HIR) technology is designed to identify cattle with optimized immune responsiveness and is associated with enhanced resistance to a broad range ...