Copper Levels in Bovine Serum
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Date
1978
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North Dakota State University
Abstract
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Through the cooperation of USDA-APHIS inspectors in six slaughter plants, 723 serum-liver samples were collected from August through November of 1977. The average copper level in these serums was 0.64 à ± .27 ppm. There were 211 cattle with less than 0.5 ppm copper and 67 will less than 0.25 ppm. Future supplementation trials and additional sampling are planned.