Evidence of genetic resistance of cattle to infection with Mycobacterium bovis.

摘要: Anecdotal evidence points to genetic variation in resistance of cattle infection with Mycobacterium bovis, the causative agent bovine tuberculosis (BTB), and published experimental deer suggests significant reactivity diagnostic tests. However, such has not been properly quantified United Kingdom dairy population; it is possible that exists may be a factor influencing occurrence BTB. Using models based on outcome process diagnosis (ultimate fate models) single stage (continuation ratio models, herd test-date models), this study shows there heritable individual cow susceptibility BTB, selection for milk yield unlikely have contributed current epidemic. Results demonstrate genetics could play an important role controlling BTB by reducing both incidence severity breakdowns.