Unproven bulls bring genetic improvement

摘要

Using test bulls has helped to increase genetic gain and improve herd performance on a West Sussex farm. Breeding to increase genetic gain and improve herd performance is an important aspect of management. John Beeney, farm manager at Trusler's Hill Farms, Blackstone, West Sussex, believes all dairy farmers using AI should test young, unproven bulls as it would help raise the overall genetic merit of the UK herd and help many bulls gain proofs. John has the philosophy that, there are no duds nowadays, "Some are just not quite as good as others," he says, "They all have their good and bad points."