In North America, antibiotic-free pig production causes nutritional challenges. Regulations in Canada are being eased to allow the use of some ingredients already available internationally.
An update. Little is known about the long-term consequences of withdrawing prophylactic antibiotics from pig feed, according to Dr Diana Alessia of the Teagasc Animal and Grassland Research and Innovation Centre in Ireland.
However, Dr Alessia and her colleagues recently found that the removal of these antibiotics is possible with only minor reductions in productive performance and health, which can be addressed by improved husbandry and the use of parenteral antibiotics.
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