The concern about inbreeding and its effects is a major reason for dairy producers’ increased interest in milking ProCROSS cows in their commercial herds. Today’s rate of inbreeding increase per generation in the Holstein breed far surpasses the United Nations FAO recommendation for a closed population of a production livestock species.
A new report published this month has revealed that crossbred dairy cattle incur significantly lower veterinary and pharmaceutical costs and lower rates of stillbirth than the pure Holstein. The findings were published in the prestigious Journal of Dairy Science (103:10917–10939, November 2020) and follow a succession of similar reports which have demonstrated that crossbred cattle have numerous other health and economic attributes compared with the purebred Holstein.
A growing body of evidence is demonstrating that crossbred cattle are significantly more fertile than the pure Holstein. Their improved fertility has been shown to be achieved without any compromise to their milk production.