添喂赖氨酸对无角陶赛特×小尾寒羊杂交羔羊到达皱胃营养物质的影响

›› 2012, Vol. 39 ›› Issue (11): 79-85.

添喂赖氨酸对无角陶赛特×小尾寒羊杂交羔羊到达皱胃营养物质的影响

李海英, 雒秋江, 杨开伦, 钟涛, 刘文杰

新疆农业大学动物科学学院,动物营养实验室,新疆乌鲁木齐 830052

收稿日期:2012-02-13 出版日期:2012-11-20 发布日期:2012-11-22
通讯作者: 雒秋江(1956-),男,教授,博士生导师,研究方向:动物营养与饲料。 E-mail: qjlxjau@yahoo.com.cn E-mail:qjlxjau@yahoo.com.cn
作者简介:李海英(1968-),女,山东人,副教授,研究方向:动物营养与饲料。
基金资助:
新疆维吾尔自治区动物营养与饲料科学重点学科经费资助。

Effect of Supplement of Lysine on the Nutrients Arriving at the Abomasum of Polled Dorset譙mall-tail Han Lambs

LI Hai-ying, LUO Qiu-jiang, YANG Kai-lun, ZHONG Tao, LIU Wen-jie

Laboratory of Animal Nutrition, College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China

Received:2012-02-13 Online:2012-11-20 Published:2012-11-22

摘要/Abstract

摘要： 将8只40日龄安装永久性皱胃瘘管的无角陶赛特与小尾寒羊杂交F1代母羔(平均体重为8.90 kg±0.38 kg)根据体重分为2组,每组4只,在60~80、81~120和121~240日龄分别饲喂日粮1、2和3,并分别添喂1.2%、0.8%和0.4%的赖氨酸,以研究添喂赖氨酸对到达羔羊皱胃营养物质的影响。结果表明,与对照组相比,在日粮1、2和3中添喂不同水平的赖氨酸,使羔羊到达皱胃的干物质分别增加了7.01%(P＞0.05)、11.59%(P＜0.01)和10.65%(P＜0.05),有机物分别增加了8.48%(P＞0.05)、13.01%(P＜0.05)和12.14%(P＜0.01),粗蛋白质分别增加了11.12%(P＞0.05)、21.73%(P＜0.01)和12.44%(P＜0.05),微生物蛋白分别增加了13.46%(P＜0.05)、26.85%(P＜0.01)和15.08%(P＜0.05),总氨基酸分别增加了39.22%(P＜0.01)、35.52%(P＜0.01)和28.27%(P＜0.05),总必需氨基酸分别增加了49.21%(P＜0.01)、34.40%(P＜0.01)和28.11%(P＜0.05),赖氨酸分别增加43.77%(P＜0.01)、37.25%(P＜0.01)和34.38%(P＜0.05)。在对照组和试验组中,到达皱胃的赖氨酸主要为结合赖氨酸,而游离赖氨酸一般低于总赖氨酸量的1%。添喂赖氨酸使羔羊的干物质自由采食量分别比对照组提高了12.57%(P＞0.05)、19.38%(P＜0.01)和16.29%(P＜0.01),前胃干物质消化量分别增加了20.81%(P＞0.05)、35.64%(P＜0.01)和19.97%(P＜0.01),日增重分别提高了17.34%(P＜0.05)、21.30 %(P＜0.01)和17.76%(P＜0.05)。因此,给60~240日龄羔羊添喂赖氨酸可增加到达皱胃的营养物质的量和前胃有机物的消化量,从而增加羔羊的营养供应。

关键词: 赖氨酸; 羔羊; 皱胃; 营养

Abstract: Eight female Small-tail Han×Polled Dorset lambs, with the average body weight of(8.90±0.38)kg, were fitted with the abomasum canula at the age of 40 days, and fed with diets 1, 2 and 3 during 60 to 80,81 to 120 and 121 to 240 days old respectively,and were supplemented with lysine at the dose of 1.2%,0.8% and 0.4% in diets 1, 2 and 3 respectively, to study the effect of dietary lysine supplementation on the nutrients arriving at the abomasum. The results showed that compared with that of the control group, supplementing lysine to the lambs from 60 to 240 old-days, increased the average amounts of DM arriving at abomasum by 7.01%(P＞0.05),11.59%(P＜0.01) and 10.65%(P＜0.05) respectively, increased the average amounts of OM by 8.48%(P＞0.05),13.01%(P＜0.05) and 12.14%(P＜0.05) respectively,increased the average amounts of CP by 11.12%(P＞0.05),21.73%(P＜0.01) and 12.44%(P＜0.05) respectively,increased the average amounts of microbial protein arriving at abomasum by 13.46%(P＜0.05),26.85%(P＜0.01) and 15.08%(P＜0.05) respectively,increased the average amounts of the total amino acids by 39.22%(P＜0.01),35.52%(P＜0.01) and 28.27%(P＜0.05) respectively,increased the average amounts of the total essential amino acids by 49.21%(P＜0.01),34.40%(P＜0.01) and 28.11%(P＜0.05) respectively,increased lysine by 43.77%(P＜0.01),37.25%(P＜0.01) and 34.38%(P＜0.05) respectively .The lysine arriving at abomasum mainly was combinative lysine both in the experimental and control groups, with less 1% of free lysine. Compared with the control group, by supplementing lysine to the lambs, the average amounts of voluntary intake of DM was increased by 12.57%(P＞0.05),19.38%(P＜0.01) and 16.29%(P＜0.01) respectively, the digested DM in forestomach was increased by 20.81%(P＞0.05),35.64%(P＜0.01) and 19.97%(P＜0.01) respectively,and the daily body weight gain was increased by 17.34%(P＜0.05), 21.30 %(P＜0.01) and 17.76%(P＜0.05) respectively. It was concluded that supplementing lysine to the 60 to 240 day’s lambs could increase the nutrients arriving at abomasum and the digested OM in forestomach, and as a result, increase the supplement of the nutrients to the lamb.

Key words: lysine; lamb; abomasum; nutrition

中图分类号:

S816.7

李海英, 雒秋江, 杨开伦, 钟涛, 刘文杰. 添喂赖氨酸对无角陶赛特×小尾寒羊杂交羔羊到达皱胃营养物质的影响[J]. , 2012, 39(11): 79-85.

LI Hai-ying, LUO Qiu-jiang, YANG Kai-lun, ZHONG Tao, LIU Wen-jie. Effect of Supplement of Lysine on the Nutrients Arriving at the Abomasum of Polled Dorset譙mall-tail Han Lambs[J]. , 2012, 39(11): 79-85.

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