Atinmo T, Baldijão C, Pond W G, Barnes R H
J Nutr. 1976 Jul;106(7):947-51. doi: 10.1093/jn/106.7.947.
Developmental changes in growth hormone levels during protein or energy malnutrition was studied in weaned pigs. Three or 4 weeks old pigs from control dams were fed a control diet (18% protein), an energy-restricted diet (18% protein) or a low protein diet (6% protein) for 8 weeks. Energy restriction was achieved by feeding the control diet in amounts that allowed very little growth. After the restriction period, all pigs were fed the control diet ad libitum for another 8 weeks. Blood samples were collected at intervals throughout the experiment and the plasma was analyzed for growth hormone by radioimmunoassay. Post weaning protein deprivation resulted in higher growth hormone levels during the restriction period as compared to control pigs or pigs with a restricted energy intake.
对断奶仔猪蛋白质或能量营养不良期间生长激素水平的发育变化进行了研究。将来自对照母猪的3或4周龄仔猪分别饲喂对照日粮（18%蛋白质）、能量限制日粮（18%蛋白质）或低蛋白日粮（6%蛋白质）8周。通过以几乎不允许生长的量饲喂对照日粮来实现能量限制。在限制期结束后，所有仔猪再自由采食对照日粮8周。在整个实验期间定期采集血样，并通过放射免疫测定法分析血浆中的生长激素。与对照仔猪或能量摄入受限的仔猪相比，断奶后蛋白质缺乏导致限制期内生长激素水平升高。
