Holstein Friesian cattle
Breed characteristics
A healthy calf weighs 40 to 50 kg (75–110 lb) or more at birth. A mature Holstein cow typically weighs 680–770 kg (1500–1700 lb), and stands 145–165 cm (58–65 in) tall at the shoulder. Holstein heifers should be bred by 11 to 14 months of age, when they weigh 317–340 kg (700–750 lb) or 55% of adult weight. Generally, breeders plan for Holstein heifers to calve for the first time between 21 and 24 months of age and 80% of adult bodyweight. The gestation period is about nine and a half months.
Holstein Friesian cattle-7