Live Weight and Bone Growth from Birth to 23 Months of Age in Holstein–Friesian, Jersey and Crossbred Heifers

Selection pressure for greater milk solid production, calving ease and early puberty attainment has resulted in the alteration of growth trajectory New Zealand dairy heifers. Although previous data have looked at stature terms height girth, changes as a result seasonal not been examined. In addition, relative contributions appendicular skeleton thorax relation to considered studies. Therefore, aim this study was examine how proportional change with increases live weight Holstein–Friesian, Jersey Holstein–Friesian–Jersey crossbred heifers from birth 23 months age (just prior calving). Comparisons height, length, girth distal proximal forelimb length (stature) revealed that same weight, measures did differ between breeds (p < 0.05). As increases, contribution limb increasing decreases, which is consistent cessation physeal occurring earlier bones than limb. By understanding timing heifers, effect on longitudinal bone can be identified.