Dietary Protein Levels Alter Plasma Insulin-Like Growth Factor-I Concentration of Chicks
Dietary Protein Levels Alter Plasma Insulin-Like Growth Factor-I Concentration of Chicks
复制标题
日粮蛋白质水平改变雏鸡血浆胰岛素样生长因子-I 浓度
DOI：
10.2141/jpsa.36.25
复制
发表时间：
1999
影响因子：
1.5
通讯作者：
J. Okumura
中科院分区：
文献类型：
--
作者：
K. Kita;J. Okumura
对7日龄雏鸡随机饲喂不同蛋白质水平(0、10、20、40和60%蛋白质)的日粮，测定血浆葡萄糖、游离脂肪酸、三酰甘油、胆固醇、白蛋白、蛋白质、胰岛素样生长因子-I(IGF-I)的浓度。血糖浓度随着饲料蛋白质水平从10%增加到40%而降低。当饲料蛋白质水平从0增加到60%时，血浆胆固醇浓度显著下降。血浆IGF-I浓度随日粮蛋白质水平的升高而显著升高，超过20%后逐渐降低。雏鸡体重变化对日粮蛋白质水平等营养条件变化的反应可能部分受血浆IGF-I浓度变化的调节。
The plasma concentration of glucose, free fatty acid, triacylglycerol, cholesterol, albumin, protein, insulin-like growth factor-I (IGF-I) was measured in chicks (7-d-old) given diets with varying dietary protein levels (0, 10, 20, 40 and 60% protein) ad libitum for 10 days. Plasma glucose concentration decreased with rising dietary protein levels from 10 to 40%. When dietary protein levels increased from 0 to 60%, plasma cholesterol concentration decreased significantly. Plasma IGF-I concentration increased significantly with elevating dietary protein levels up to 20%, and above the level, it decreased gradually. The response of body weight change in chicks to the alteration in nutritional condition such as dietary protein levels over 10 days would be partially regulated by the change in plasma IGF-I concentration.