Buyse J, Leenstra F R, Beuving G, Berghman L R, Decuypere E
Leuven Poultry Research Group, K. U. Leuven, Heverlee, Belgium.
Gen Comp Endocrinol. 1994 Sep;95(3):416-21. doi: 10.1006/gcen.1994.1141.
The effect of a high (33 degrees C) compared to a normal (23 degrees C) ambient temperature on the pulsatile release of growth hormone (GH) has been studied in 4-week-old, cannulated male meat-type chickens selected for high body weight (GL line) or for improved feed efficiency (FC line). When reared in the normal temperature environment, overall circulating mean and amplitude GH values of FC chickens were significantly higher than those of GL chickens. There were no differences in GH pulse length or frequency between genotypes. The high rearing temperature completely abolished the pulsatility of GH in the plasma in both lines, but without affecting overall mean GH levels.
在4周龄、已插管的雄性肉用型鸡中，研究了高温（33摄氏度）与常温（23摄氏度）环境温度对生长激素（GH）脉冲式释放的影响。这些鸡选自高体重品系（GL系）或饲料效率改良品系（FC系）。在常温环境中饲养时，FC系鸡的总体循环平均GH值和GH幅度显著高于GL系鸡。不同基因型之间的GH脉冲长度或频率没有差异。高温饲养完全消除了两个品系血浆中GH的脉冲性，但不影响总体平均GH水平。
