Selenium and Development of Exudative Diathesis in Chicks.

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Abstract
Two White Rock New Hampshire chicks were studied for the effects of selenium, vitamin E and dried brewers yeast on the development of exudative diathesis. Selenium (selenate) at 0.1 ppm was effective in reversing the lowered red blood cell counts, lowered hemoglobin values, lowered serum protein levels, and the reduced albumin-globulin ratios associated with exudative diathesis. As the level of selenium was increased to 1 ppm, total blood changes were not as greatly affected as with the feeding of 0.1 ppm. These results were apparently due to the toxicity of selenium when fed at the 1 ppm level. Dry ashing of dried brewers yeast at 400-500[degree] C completely destroyed the exudative-diathesis-preventing properties. This was apparently due to loss of selenium during the ashing process.

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