Muambi S, Decuypere E, Michels H
Reprod Nutr Dev (1980). 1981;21(4):585-9.
After storage at 12 degrees C and 90 to 95 p. 100 humidity, for periods of 1, 5, 8, 11 and 14 days, Rhode Island Red eggs were incubated at 37.5 degrees C and 60 p. 100 humidity. Whatever the total duration of incubation within the experimental conditions, maximal serum levels of triiodothyronine (T3) and thyroxine (T4) were obtained the day of pipping. Embryos having perforated the air-space membrane the day before pipping showed elevated serum T3, but not T4, levels as compared to embryos without a perforation. The lower serum T3 levels, obtained at pipping, after longer periods of preincubation storage are discussed in relation to other experiments on perinatal changes in serum iodo-hormones.
将罗德岛红鸡蛋在12摄氏度、湿度90%至95%的条件下储存1、5、8、11和14天，然后在37.5摄氏度、湿度60%的条件下孵化。在实验条件下，无论孵化的总时长如何，在啄壳当天均可获得三碘甲状腺原氨酸（T3）和甲状腺素（T4）的最高血清水平。与未穿孔的胚胎相比，在啄壳前一天已穿透气室膜的胚胎血清T3水平升高，但T4水平未升高。结合其他关于围产期血清碘激素变化的实验，讨论了预孵化储存时间较长后在啄壳时获得的较低血清T3水平。
