Good growth crucial to calve heifers at 24 months

摘要

Calving heifers at two is a key efficiency driver for Nottinghamshire stickler producer Ian Willison, who is aiming for fast early growth rates and a good balance of maternal genetics in his replacement heifers.Mr Willison says high young-stock growth rates and selecting sires for 200-day milk, calving ease daughters, scrotal size and positive fat depth make calving at two years old both optimal and achievable.Replacement heifers calve down at 22-23 months in the autumn-calving Simmental cross Blue herd at Williamswood Farm.