ASSOCIATIONS BETWEEN DAYS OPEN AND DRY PERIOD LENGTH VERSUS MILK PRODUCTION, REPLACEMENT, AND FERTILITY IN THE SUBSEQUENT LACTATION IN HOLSTEIN DAIRY COWS

Associations between days open and dry period length versus milk production, replacement, and fertility in the subsequent lactation in Holstein dairy cows

ABSTRACT: A retrospective, observational approach was used to investigate the association between days open and dry period length in one lactation, and survivability, production, and reproductive performance in the subsequent lactation.Animal-level data from 60 intensively managed, year-round-calving US Holstein herds were collected.A subset of thi

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