›› 2008, Vol. 1 ›› Issue (11): 10-13.

• 动物营养与饲料科学 • 上一篇    下一篇

添加N-乙酰-DL-蛋氨酸对绵羊消化代谢的影响

姜庆军,杨开伦,张俊瑜,王彩霞,王梦霖   

  1. 新疆农业大学动物营养实验室,乌鲁木齐 830052
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-11-20 发布日期:2008-11-20

Effects of Supplemental NAcetylDLMethionine on Digestion and Metabolism of Sheep

JIANG Qing-jun, YANG Kai-lun, ZHANG Jun-yu, WANG Cai-xia, WANG Meng-lin   

  1. Laboratory of Animal Nutrition, Xinjiang Agricultural University, Urumqi 830052, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-11-20 Published:2008-11-20

摘要: 本试验选取4只体重约40 kg的中国美利奴(新疆型)细毛羊,采用分期试验设计,在第一期试验中每天每只添喂蛋氨酸2.35 g(对照组),第二期试验中每天每只添喂N-乙酰-DL-蛋氨酸3.06 g(试验组),以研究添加N-乙酰-DL-蛋氨酸对绵羊消化代谢的影响。结果表明,添加蛋氨酸组和添加N-乙酰-DL-蛋氨酸组的纤维素消化率分别为50.64%±6.46%,61.98%±5.44%,半纤维素消化率分别48.92%±1.69%,54.96%±3.95%,钙的表观消化率分别为15.12%±1.07%,18.27%±2.04%,两者间均差异显著(P<0.05)。因此,添加N-乙酰-DL-蛋氨酸,可以提高绵羊对日粮中纤维素和半纤维素的消化率,提高钙的保留量、保留率。

关键词: N-乙酰-DL-蛋氨酸; 绵羊; 消化代谢

Abstract: Four male China merino (Xinjiang type) sheep of 40 kg live weight were used to investigate effects of supplementation N-Acetyl-DL-Methionine on digestion and metabolism of sheep in two periods. Sheep were supplied with 2.35 g methionine per day in the first period and with 3.06 g N-Acetyl-DL-Methionine per day in the second period. The results indicated that digestibility of cellulose in control and treatment were 50.64%±6.46% and 61.98%±5.44%(P<0.05), the digestibility of hemicellulose were 48.92%±1.69% and 54.96%±3.95%(P<0.05), the apparent digestibility of calcium were 15.12%±1.07% and 18.27%±2.04%(P<0.05). It concluded that the digestibility of cellulose and hemicellulose were improved by supplementation with N-Acetyl-DL-Methionine. The amount and rate of retention of calcium were also improved by the supplementation.

Key words: N-acetyl-DL-methionine; sheep; digestion and metabolism

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