Morck T A, Austic R E
Poult Sci. 1981 Jul;60(7):1497-1503. doi: 10.3382/ps.0601497.
Studies were conducted to determine the iron requirements of laying and breeding hens (Gallus domesticus). Single Comb White Leghorn hens fed a purified diet containing 15 ppm iron exhibited a rapid decline in hematocrit, blood hemoglobin, egg iron concentrations and hatchability of fertile eggs. No effects of the low iron diet on body weight, feed consumption, or fertility were observed. When hens were fed graded levels of iron from 15 to 65 ppm at 10 ppm increments, a dose response was observed for hematocrit and hatchability. The iron requirement for maintenance of hematocrit was between 35 and 45 ppm iron. Fifty-five parts per million iron were required for maximum hatchability of fertile eggs.
开展了多项研究以确定产蛋和种用母鸡（家鸡）的铁需求量。给单冠白来航母鸡饲喂含铁15 ppm的纯化日粮时，其血细胞比容、血液血红蛋白、蛋中铁浓度以及可育蛋孵化率均迅速下降。未观察到低铁日粮对体重、采食量或繁殖力有影响。当母鸡饲喂铁含量从15 ppm递增至65 ppm、增幅为10 ppm的分级日粮时，观察到血细胞比容和孵化率呈现剂量反应关系。维持血细胞比容所需的铁含量在35至45 ppm之间。可育蛋的最大孵化率需要55 ppm的铁含量。
