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What level of zinc should be in milk replacers for veal calves and what would be the first deficiency symptoms?

April 26, 2017calves Deficiency level milk replacers symptoms veal zinc

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What level of zinc should be in milk replacers for veal calves and what would be the first deficiency symptoms?

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A. The 1989 Dairy NRC suggest 40 ppm zinc in milk replacers. Recent German research showed that when 7 ppm zinc was fed the first deficiency symptom was a 25% decrease in growth rate.