饲粮营养限制对断奶湖羊羔羊生长、屠宰性能以及器官发育的影响

doi:doi: 10.11843/j.issn.0366-6964.2016.08.010

畜牧兽医学报 ›› 2016, Vol. 47 ›› Issue (8): 1601-1609.doi: doi: 10.11843/j.issn.0366-6964.2016.08.010

饲粮营养限制对断奶湖羊羔羊生长、屠宰性能以及器官发育的影响

祁敏丽¹，马铁伟²，刁其玉¹ ，崔凯¹，王波¹，柴建民¹，王子玉²，张乃锋^1*

（1.中国农业科学院饲料研究所/农业部饲料生物技术重点开放实验室，北京 100081；2.南京农业大学动物科技学院，南京210095）

收稿日期:2015-10-08 出版日期:2016-08-23 发布日期:2016-08-23
通讯作者: 张乃锋，副研究员，硕士生导师，E-mail：zhangnaifeng@caas.cn
作者简介:祁敏丽（1990-），女，河北保定人，硕士生，主要从事幼畜生理与营养研究，E-mail：minliqi@yeah.net
基金资助:
公益性科研专项“南方地区幼龄草食畜禽饲养技术研究”（201303143）；国家肉羊产业技术体系建设专项资金（CARS-39）

Effect of Protein and Energy Restriction on Growth and Slaughter Performance and Visceral Organs Development of Weaned Hu Lambs

QI Min-li¹，MA Tie-wei²，DIAO Qi-yu ¹，CUI Kai¹，WANG Bo¹，CHAI Jian-min¹，WANG Zi-yu²，ZHANG Nai-feng^1*

(1.Key Laboratory of Feed Biotechnology of the Ministry of Agriculture/Feed Research Institute of Chinese Academy of Agricultural Sciences，Beijing 100081，China；2.College of Animal Science and Technology，Nanjing Agricultural University，Nanjing 210095，China)

Received:2015-10-08 Online:2016-08-23 Published:2016-08-23

摘要/Abstract

摘要：

旨在研究饲粮营养限制对断奶湖羊羔羊生长性能、屠宰性能以及器官发育的影响。本研究选取出生日期、体重相近的60日龄断奶湖羊羔羊64只，根据体重分为4组，分别为对照组（CON）、20%蛋白质限制组(PR)、20%能量限制组(ER)和20%蛋白质能量同时限制组(BR)，每组4个重复，每个重复4只羔羊，公母各半。称取羔羊60和120日龄体重，记录羔羊采食量；试验结束时对羔羊进行屠宰，称取羔羊器官重量、胴体重以及测定羔羊GR值和眼肌面积。结果表明：1）PR、ER组的断奶羔羊末重、日增重以及饲料转化率与CON组相比无显著性差异（P>0.05），但BR组末重显著低于CON组 (P<0.05)；2) BR组羔羊屠宰率显著低于CON组（P<0.05）。PR、ER和BR组羔羊眼肌面积、GR值显著低于CON组（P<0.05）；3）PR、ER、BR组羔羊肝重和瘤胃重显著低于CON组（P<0.05），同时ER、BR组肝重占宰前活重的比例显著低于CON组（P<0.05），但是瘤胃重占宰前活重的比例4个组间差异不显著（P>0.05）。能量和蛋白质同时限制降低了羔羊生长以及屠宰性能，营养限制对断奶羔羊肝发育有显著抑制作用。

Abstract:

The aim of this study was to assess the effect of protein and energy restriction on growth and slaughter performance and visceral organ development of weaned Hu lambs.Sixty-four weaned Hu lambs were randomly assigned into 4 groups，including control group (CON)，20% of protein restriction (PR)，20% of energy restriction (ER)，20% of energy and protein restriction (BR).There were 4 replicates in each group，and 4 lambs(2 females，2 males) in each replicate.The intakes of starter were recorded，and all the lambs were weighed on 60 and 120 days of age，then 4 of them from each group were slaughtered on 120 days of age for the determination of organ weight，casrcass weight，lamb GR values and eye muscle area.The results showed as follows：1) No significant difference was observed among PR，ER and CON groups in terms of final weight (120 d)，average daily gain (ADG) and feed conversion rate (FCR) (P>0.05)，whereas final weight in BR group was significantly lower than CON group (P<0.05).2) The dressing percentage in BR was lower than that in CON (P<0.05).Eye muscle area and GR values from PR，ER and BR groups were significantly lower than those from CON group (P<0.05).3) Liver weight and rumen weight from the 3 treatment groups were significantly lower than that from CON group (P<0.05)，and liver weight accounted for the proportion of live weight before slaughter in ER and BR groups were significant lower than that in CON group (P<0.05)，while no significant difference was obtained in terms of rumen weight accounted for the proportion of live weight before slaughter (P>0.05).In conclusion，energy and protein restriction significantly reduced growth and slaughter performance，and energy and(or) protein restriction constrained the development of liver.

中图分类号:

S826
S821.4

祁敏丽，马铁伟，刁其玉,崔凯，王波，柴建民，王子玉,张乃锋. 饲粮营养限制对断奶湖羊羔羊生长、屠宰性能以及器官发育的影响[J]. 畜牧兽医学报, 2016, 47(8): 1601-1609.

QI Min-li，MA Tie-wei，DIAO Qi-yu，CUI Kai，WANG Bo，CHAI Jian-min，WANG Zi-yu，ZHANG Nai-feng. Effect of Protein and Energy Restriction on Growth and Slaughter Performance and Visceral Organs Development of Weaned Hu Lambs[J]. ACTA VETERINARIA ET ZOOTECHNICA SINICA, 2016, 47(8): 1601-1609.

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饲粮营养限制对断奶湖羊羔羊生长、屠宰性能以及器官发育的影响

Effect of Protein and Energy Restriction on Growth and Slaughter Performance and Visceral Organs Development of Weaned Hu Lambs

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