Organisation of a Large Collaborative Trial on the Effect of Anthelmintic Treatment on the Milk Yield of Dairy Cows
Increasingly insistent claims have been made in recent years that the milk yield of dairy cows is improved if nematodes of the alimentary tract are removed by anthelmintic treatment. Most of the work on which these claims were based was undertaken in the USA. Smaller experiments have been conducted in Holland, Belgium, Australia and New Zealand. Most of these smaller trials have produced results either contradictory or not entirely convincing. Whether in the UK anthelmintic treatment of dairy cows is likely to increase their yield is an entirely open question and three small trials reported recently did little to resolve the matter.
KeywordsFaeces Sample Milk Yield Anthelmintic Treatment Worm Infection Milk Market
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