Have we been breeding the wrong type of cow to date?

摘要

Setting minimum standards for type when selecting Al sires could seriously damage the herdlife of your cows, according to geneticist Dr Marjorie Faust. "Selecting for high type does not necessarily mean your cows will have better mastitis resistance,higher fertility or leave more profit." Speaking at this year's Cattle Breeders Conference in Shropshire, Dr Faust from ABS Global highlighted how changing demands on modern dairy units have also changed genetic selection emphasis to focus on reducing vet and replacement costs rather than increasing yield alone.