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Politics : Formerly About Advanced Micro Devices
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To: combjelly who wrote (924656)3/6/2016 7:39:55 AM
From: longnshort2 Recommendations

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Still, the researchers just had a correlation between DDT and eggshell thinning. So they did what good scientists should do—they experimented. Joel Bitman at the U.S. Department of Agriculture fed Japanese quail a diet laced with DDT. His study, "DDT Induces a Decrease in Eggshell Calcium," published in Nature on October 4, 1969, found that the quail dosed with DDT had eggshells that were about 10 percent thinner than those of undosed quail. However, Bitman's findings were eventually overturned because he had also fed his quail a low-calcium diet. When the quail were fed normal amounts of calcium, the thinning effect disappeared. Studies published in Poultry Science found chicken eggs almost completely unaffected by high dosages of DDT.
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