Poczopko P, Uliasz M
Acta Physiol Pol. 1975 May-Jun;26(3):241-8.
The experiments performed on 90 male goslings showed that 6 h cold exposure (5 +/- 1 degree C) of the specimens 3, 10 and 21-day-old increases considerably 131I uptake by their thyroid gland. After single subcutaneous injection of thyroxine (100 mug/kg) no significant alterations of the metabolic rate, during 4 h measurements, in comparison with the pre-injection value were observed. Since, in control birds about 17% decrease of the metabolic rate within the same time occurred, as the effect of fasting, it was concluded that thyroxine does have the calorigenic effect. The metabolic rate of the goslings 5 to 7-day-old treated with thyroxine for four consecutive days (100 mug/kg daily) and the control ones was very similar. In the older goslings (22--24 days) thyroxine treatment significantly elevated the metabolic rate. Direct (extrathyroid) effect of TSH on heat production, did not occur in goslings.
对90只雄性雏鹅进行的实验表明，对3日龄、10日龄和21日龄的雏鹅进行6小时冷暴露（5±1摄氏度），会使其甲状腺对131I的摄取量显著增加。在单次皮下注射甲状腺素（100微克/千克）后，在4小时的测量过程中，与注射前的值相比，未观察到代谢率有显著变化。由于在对照禽类中，由于禁食的影响，在同一时间内代谢率下降了约17%，因此得出结论，甲状腺素确实具有产热作用。连续四天（每天100微克/千克）用甲状腺素处理的5至7日龄雏鹅和对照雏鹅的代谢率非常相似。在较年长的雏鹅（22 - 24日龄）中，甲状腺素处理显著提高了代谢率。促甲状腺激素对产热没有直接（甲状腺外）作用，在雏鹅中未出现这种情况。
