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不同n-6/n-3多不饱和脂肪酸比值对LPS诱导的断奶仔猪肠道形态的影响

纪颖 黄金秀 李藏兰 游小燕 周晓容 赖长华

中国畜牧杂志2011,Vol.47Issue(23):39-43,5.
中国畜牧杂志2011,Vol.47Issue(23):39-43,5.

不同n-6/n-3多不饱和脂肪酸比值对LPS诱导的断奶仔猪肠道形态的影响

Effect of Different n-6/n-3 PUFA Ratio on Intestinal Morphology of Weaned Pigs Challenged with LPS

纪颖 1黄金秀 2李藏兰 1游小燕 2周晓容 2赖长华1

作者信息

  • 1. 中国农业大学动物科技学院,北京100193
  • 2. 重庆畜牧科学研究院,重庆402460
  • 折叠

摘要

Abstract

The trial was conducted to evaluate the effects of n -6/ n -3 PUFA ratio of 10 or 20 on weaned pigs performance and intestinal morphology challenged with IPS. 24 weaned pigs at 30 days with an average body weight of (6.8 ±0.55)kg were used in a 2x2 factorial design. The main factors consisted of diets (n-6/n-3 PUFA ratio 10 or 20) and immunological challenge (LPS or saline). On the last day of the trial, day 21, half piglets of each dietary treatment were injected intraperitoneally with either LPS or an equivalent amount of sterile saline. Intestinal samples were collected at 3 h post-injection. Results suggested that the n-6/n-3 PUFA ratio of 10 resulted in higher F/G than the n-6/n-3 PUFA ratio of 20 in the first week and the entire trial (P<0.05 ), The ratio of villus height and crypt depth in jejunum of weaned pigs was decreased after stimulated by LPS (P=0.0l). However, different n-6/n-3 PUFA ratio in diets has no effect on Intestinal morphology of weaned pigs induced by immune challenge of piglets in immunological stress.

关键词

多不饱和脂肪酸/生长性能/免疫应激/肠道形态/断奶仔猪

Key words

PUFA/immunological stress/intestinal morphology/weaned pigs

分类

农业科技

引用本文复制引用

纪颖,黄金秀,李藏兰,游小燕,周晓容,赖长华..不同n-6/n-3多不饱和脂肪酸比值对LPS诱导的断奶仔猪肠道形态的影响[J].中国畜牧杂志,2011,47(23):39-43,5.

基金项目

高等学校全国优秀博士论文作者专项资金(2007B61) (2007B61)

国家生猪产业技术体系(nycytx-009) (nycytx-009)

中国畜牧杂志

OA北大核心CSTPCD

0258-7033

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