| Effect of Newcastle Disease on Serum Copper, Zinc, Cholesterol, and Carotenoid Values in the Chick | |||||||||||
Abstract | |||||||||||
| Experimentally induced Newcastle disease virus infection of chicks, with a mortality index of 48%, was accompanied by increased concentrations in serum of copper and cholesterol and decreased concentrations of zinc and total carotenoids. These changes distorted, or were superimposed upon, the rhythmic variability in the normal serum concentrations of each of these moieties. Changing values for copper, zinc, and cholesterol became apparent before any overt signs of disease. | |||||||||||
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