GENETIC AND ENVIRONMENTAL FACTORS IN DAIRY SIRE EVALUATION. I. EFFECTS OF HERDS, MONTHS, AND YEAR-SEASONS ON VARIANCE AMONG LACTATION RECORDS; REPEATABILITY AND HERITABILITY.
D000818:Animals; D001947:Breeding; D002417:Cattle; D005260:Female; D007774:Lactation; D012621:Seasons
BREEDING; CATTLE; LACTATION