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Short Dry Periods Don’t Affect Milk Quality

By Jim Dickrell
 
 
With increasing milk production levels and more persistent lactation curves, some dairy farmers are opting to dry cows off later and shortening dry periods.
 
The question then arises: If the majority of new mastitis infections occur during the dry period, will milk quality suffer when the cow calves and starts her next lactation? “Dry period length has no effect on the risk of new udder infections,” says Albert DeVries, a University of Florida dairy specialist.
 
“Increased milk yield at dry off has been linked to an increased risk of new udder infections in the dry period and at calving, mainly because of increased risk of leaking milk and pressure in the udder,” he says. “This link supports a short dry period.”
 
Pornpamol Pattamanont , a colleague of DeVries, adds there are no reports that shorter dry periods increase mastitis incidence in the next lactation. 
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