CAJ | 학술논문

试验研究了半胱胺（CS）对藏绵羊断奶羔羊血清中生长激素（GH）、生长抑素（SS）、血清中胰岛素样生长因子（IGF-1）的影响。将40只80日龄左右且始重平均为16 kg的（公母各半）藏绵羊断奶羔羊随机分为2组，在日粮精料中添加300 mg/（kg·BW）的CS，隔日添加1次，试验期42 d。分别于开始用药后的第0、7、14、21、28、35天早晨空腹颈静脉采血样，以放射免疫法测定血浆中GH、SS、IGF-1。结果表明，试验组精料中添加CS使藏绵羊断奶羔羊血清GH、IGF-1都有不同程度的提高，且试验组与对照组相比都有显著差异（P<0.05）；SS均有不同程度的下降，试验组与对照组相比第3周开始有显著差异（P<0.05）。
시험연구료반광알（CS）대장면양단내고양혈청중생장격소（GH）、생장억소（SS）、혈청중이도소양생장인자（IGF-1）적영향。장40지80일령좌우차시중평균위16 kg적（공모각반）장면양단내고양수궤분위2조，재일량정료중첨가300 mg/（kg·BW）적CS，격일첨가1차，시험기42 d。분별우개시용약후적제0、7、14、21、28、35천조신공복경정맥채혈양，이방사면역법측정혈장중GH、SS、IGF-1。결과표명，시험조정료중첨가CS사장면양단내고양혈청GH、IGF-1도유불동정도적제고，차시험조여대조조상비도유현저차이（P<0.05）；SS균유불동정도적하강，시험조여대조조상비제3주개시유현저차이（P<0.05）。
The effects of cysteamine on GH, SS and IGF-1 in the serum of Tibetan Sheep weaned lamb were studied. 40 80-day-old weaned lambs of Tibetan Sheep with the average initial weight of 16 kg(half male and half female) were randomly divided into 2 groups. 300 mg/(kg·BW) of CS was added in the concentrate of diet every two days. The trial lasted 42 days. The blood samples were collected from empty stomach of sheep by jugular vein in the morning of the 0th, 7th, 14th, 21st, 28th and 35th day after medication. The content of GH, SS and IGF-1 in the plasma was determined by radioimmunoassay. The results showed that adding CS in the concentrate in the test group could increase the content of GH and IGF-1 in the serum of weaned lambs of Tibetan Sheep to different extent and there was significant difference between test group and control group(P<0.05). SS decreased to different extent and SS content in test group had significant difference with that in control group from the 3rd week to the 42nd day.