Grandhi R R, Brown R G, Reinhart B S, Summers J D
Poult Sci. 1975 Mar;54(2):510-3. doi: 10.3382/ps.0540510.
The incorporation of L-methionine-3H(G) and L-lysine-4,5'3H(n) into egg albumen by dwarf and non-dwarf White Leghorn hens was studied together with the influence of exogenous triiodothyronine (T3) and tetraiodothyronine (T4) on those incorporation patterns. The results were influenced by the amino acid studied and by the strain of bird. The maximum uptake of methionine was a day 1 for the normal and at day 4 for the dwarf which suggested that the dwarf was storing methionine in the tissue first before incorporation into albumen. If the birds were given T3 the maximum for the normal was at day 1 and day 3 for the dwarfs. When T4 was given the maximum uptake was found at day 5 for normals, and at day 2 for dwarfs. In the dwarf, T4 administration essentially corrected the decreased rate uptake of methionine but markedly retarded its uptake by the normal birds. The results for lysine were quite different. The maximum uptake was on day 4 in control, day 3 for T3-treated and day 1 for T4-treated, normal birds. In dwarf birds, the maximum was at day 2 for the control and T4-treated, and day 4 for T3-treated groups. The data were interpreted to suggest strain differences in amino acid uptake patterns due to different rates of synthesis or composition of egg albumen and marked differences in response or recptor sites to thyroid hormones.
研究了矮小型和正常型白来航母鸡将L-蛋氨酸-3H（G）和L-赖氨酸-4,5′3H（n）掺入蛋清的情况，以及外源性三碘甲状腺原氨酸（T3）和四碘甲状腺原氨酸（T4）对这些掺入模式的影响。结果受所研究的氨基酸和鸡的品系影响。正常鸡对蛋氨酸的最大摄取量在第1天，矮小型鸡在第4天，这表明矮小型鸡在将蛋氨酸掺入蛋清之前先将其储存在组织中。如果给鸡注射T3，正常鸡的最大摄取量在第1天，矮小型鸡在第3天。注射T4时，正常鸡的最大摄取量在第5天，矮小型鸡在第2天。在矮小型鸡中，注射T4基本上纠正了蛋氨酸摄取率的降低，但显著延缓了正常鸡对蛋氨酸的摄取。赖氨酸的结果则大不相同。正常鸡在对照时最大摄取量在第4天，注射T3处理的在第3天，注射T4处理的在第1天。在矮小型鸡中，对照和注射T4处理组的最大摄取量在第2天，注射T3处理组在第4天。这些数据被解释为表明由于蛋清合成速率或组成的不同以及对甲状腺激素反应或受体位点的显著差异，氨基酸摄取模式存在品系差异。
