Lopez-Berjes M A, Recio J M, Planas J
Poult Sci. 1981 Aug;60(8):1951-6. doi: 10.3382/ps.0601951.
The distribution of plasma iron between transferrin-iron (Tf-Fe) and phosvitin-iron (Phv-Fe) over a 98 week laying period was established in hens. Six plasma samples were collected at random from a group of 20 pullets, starting when the birds were 20 weeks old. Samples were collected weekly until the 29th week and subsequently on the 41st, 62nd, and 98th weeks. Detailed assays were carried out to differentiate Phv-Fe from Tf-Fe. Phosphoprotein (phosvitin) concentrations were also determined. At the beginning of sexual activity, (23 to 24 weeks) females showed a parallel increase of Tf-Fe and Phv-Fe. During the period of maximum egg production 29 to 41 weeks) Tf-Fe was 65% and the Phv-Fe 35% of the total plasma iron. During this period the transferrin saturation reached a maximum of 80%; both transport mechanisms worked simultaneously. Estrogen administration to male chickens (2 injections of 5 mg/kg body weight) precipitated similar variation patterns of the two plasma irons over a period of 7 days. It is suggested that the estrogens were responsible for these variations.
在母鸡98周的产蛋期内，确定了血浆铁在转铁蛋白铁（Tf-Fe）和卵黄高磷蛋白铁（Phv-Fe）之间的分布情况。从20只小母鸡组成的一组中随机采集6份血浆样本，从鸡20周龄时开始。每周采集样本，直到第29周，随后在第41周、62周和98周采集。进行了详细的分析以区分Phv-Fe和Tf-Fe。还测定了磷蛋白（卵黄高磷蛋白）浓度。在性活动开始时（23至24周），雌性的Tf-Fe和Phv-Fe同时增加。在产蛋高峰期（29至41周），Tf-Fe占血浆总铁的65%，Phv-Fe占35%。在此期间，转铁蛋白饱和度最高达到80%；两种运输机制同时起作用。给雄性鸡注射雌激素（2次，5毫克/千克体重）在7天内使两种血浆铁出现类似的变化模式。有人认为这些变化是由雌激素引起的。
