Browsing Escuela de Medicina Veterinaria by Subject "DAIRY HEIFERS"
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Event-time analysis of reproductive traits of dairy heifers
(Elsevier, 1998-11)Data on the reproductive traits of dairy heifers were analyzed using event-time techniques. Traits analyzed were age at first calving (n = 4631), days to first breeding, and days open (n = 1992) during the first ...