Siegel H S, Latimer J W
Poult Sci. 1981 Oct;60(10):2210-7. doi: 10.3382/ps.0602210.
The effects of the bird's sex, castration, and sex hormone replacement on the retention of dieldrin in the carcass fat of growing chickens given low levels of dieldrin in the feed (1 mg/kg) were investigated. Confirmed were previous results that "best-fit" curves for depletion after noncontaminated feed was provided were represented by an equation of the form, y = aX-b, and that, with the approach of sexual maturity, males tend to retain greater concentrations of dieldrin in the carcass fat than females. This sex difference was partly a diluting effect of higher carcass fat deposition in females as compared to males. Additionally, when dieldrin feeding was discontinued after 10 weeks of age, androgen replacement in castrates restricted the clearance of dieldrin from the fatty tissue, and estrogen replacement did not further increase clearance over that of nontreated castrates.
研究了鸟类的性别、去势以及性激素替代对在饲料中添加低水平狄氏剂（1毫克/千克）的生长鸡体脂肪中狄氏剂残留量的影响。先前的结果得到证实，即提供无污染饲料后，“最佳拟合”的消耗曲线由y = aX - b形式的方程表示，并且随着性成熟的临近，雄性鸡体脂肪中狄氏剂的残留浓度往往高于雌性。这种性别差异部分是由于雌性比雄性有更高的体脂肪沉积的稀释作用。此外，在10周龄后停止喂食狄氏剂时，给去势鸡补充雄激素会限制狄氏剂从脂肪组织中的清除，而补充雌激素并不会比未处理的去势鸡进一步增加清除率。
