开食料补饲日龄对湖羊羔羊生长性能和胃发育的影响

doi:10.11843/j.issn.0366-6964.2016.02.013

畜牧兽医学报 ›› 2016, Vol. 47 ›› Issue (2): 305-314.doi: 10.11843/j.issn.0366-6964.2016.02.013

开食料补饲日龄对湖羊羔羊生长性能和胃发育的影响

汪晓娟^1，2，刘婷¹，李发弟^1，2* ，李冲^1，2，王维民^1，2，唐德富^1，2 ，李宝胜³，马志远⁴，潘香羽¹

（1.甘肃农业大学动物科学技术学院，兰州 730070； 2.甘肃省肉羊繁育生物技术工程实验室，民勤 733300；3.金昌中天羊业有限公司，金昌 737100； 4.兰州大学草地农业科技学院，兰州 730020）

收稿日期:2015-04-02 出版日期:2016-02-23 发布日期:2016-02-23
通讯作者: 李发弟，教授，E-mail：lifd@gsau.edu.cn
作者简介:汪晓娟（1977-），女，甘肃武山人，副教授，博士生，主要从事反刍动物营养研究，Tel：0931-7631225，E-mail：wangxj@gsau.edu.cn
基金资助:
国家自然科学基金（31260564）；现代农业产业技术体系建设专项（CARS-39）

Effects of Different Starter Supplying Ages on Growth Performance and Stomach Development of Hu Sheep Lamb

WANG Xiao-juan^1，2，LIU Ting¹，LI Fa-di^1，2* ，LI Chong^1，2，WANG Wei-min^1，2，TANG De-fu^1，2，LI Bao-sheng³，MA Zhi-yuan⁴，PAN Xiang-yu¹

(1.College of Animal Science and Technology，Gansu Agricultural University，Lanzhou 730070，China；2.Sheep Breeding Biotechnology Engineering Laboratory of Gansu Province，Minqin 733300，China；3.Jinchang Zhongtian Sheep Industry Limited Company，Jinchang 737100，China；4.College of Pastoral Agriculture Science and Technology，Lanzhou University，Lanzhou 730020，China）

Received:2015-04-02 Online:2016-02-23 Published:2016-02-23

摘要/Abstract

摘要：

本试验旨在研究开食料补饲日龄对羔羊生长性能和胃室发育的影响。选用72只体重接近的湖羊公羔（双羔，初生重(3.51±0.51)kg），随机分为2组，分别在7或42日龄补饲开食料。每7 d空腹称重，分别在14、28、42、56、70和84 日龄每组屠宰6只羔羊，测定胃室和肠道重量和体积。结果表明：7日龄补饲组在42日龄后（除70 日龄）体重显著大于42日龄补饲组(P<0.05)，在21～28和35～42日龄时7 日龄补饲组平均日增重(ADG)显著大于42 日龄补饲组(P<0.05)，采食量随日龄增加而提高；7和42 日龄补饲组羔羊前胃重量和体积差异出现在28或42日龄，28日龄时7日龄补饲组瘤网胃重、瘤网胃相对重（%宰前活重）、前胃重和前胃相对重（%全胃重）有大于42日龄补饲组的趋势（0.05<P<0.1），42日龄时7日龄补饲组瘤网胃重、瘤网胃体积、瘤网胃相对重（%宰前活重）、瓣胃重、瓣胃体积、前胃重、前胃相对重（%宰前活重）、皱胃重、皱胃体积和皱胃相对重（%宰前活重）均显著大于42日龄补饲组(P<0.05)。在本试验条件下，饲喂开食料可提高羔羊生产性能并促进瘤网胃发育，相对于42日龄饲喂开食料，7 日龄饲喂开食料更有利于瘤网胃、瓣胃及皱胃的发育，促进其快速生长；7日龄补饲开食料羔羊在35日龄断奶较为可行，42日龄补饲开食料羔羊在56日龄断奶较为可行。

Abstract:

This study aimed to investigate the effect of different starter supplying ages on growth performance and stomach development of Hu sheep lamb.Seventy-two Hu male lambs (twin，the average weight of birth (3.51±0.51)kg) were randomly divided into 2 groups with starter supplying on 7-day-old(7 d group) or 42-day-old (42 d group)，respectively.Six lambs of each group were killed，sampled and measured the weight and volume of stomach and intestinal tract at the age of 14，28，42，56，70 and 84 d.The results showed that the body weight of lambs after the 42-day-old (besides 70-day-old) in 7-day-old group were significantly higher than 42-day-old group (P<0.05)，the average daily gain (ADG) of lambs at the age of 21-28 d and 35-42 d in 7-day-old group were also significantly higher than 42-day-old group (P<0.05)，the feed intake of lambs in each group were increased with the increasing of age.There was a difference on weight and volume of forestomach at the age of 28 or 42 d between 7- and 42-day-old groups.The weight of ruminoreticulum and associated relative weight (%，live weight)，the weight of forestomach and associated relative weight (%，stomach weight) of lambs at the age of 28 d in 7-day-old group trended to be higher than 42-day-old group (0.05<P<0.1)，the weight and volume of ruminoreticulum and associated relative weight (%，live weight)，the weight and volume of omasum，the weight of forestomach and associated relative weight (%，live weight)，the weight and volume of abomasum and associated relative weight (%，live weight) of lambs at the age of 42 d in 7-day-old group were significantly higher than 42-day-old group (P<0.05).The starter supplying could stimulate the growth performance and development of stomach of lambs，furthermore，starter supplement at the 7-day-old was better than 42-day-old.Starter supplying at the age of 7 d with the weaning age of 35 d and starter supplying at the age of 42 d with the weaning age of 56 d were feasible.

中图分类号:

S826
S816.32

汪晓娟，刘婷，李发弟，李冲，王维民，唐德富,李宝胜，马志远，潘香羽. 开食料补饲日龄对湖羊羔羊生长性能和胃发育的影响[J]. 畜牧兽医学报, 2016, 47(2): 305-314.

WANG Xiao-juan，LIU Ting，LI Fa-di，LI Chong，WANG Wei-min，TANG De-fu，LI Bao-sheng,MA Zhi-yuan，PAN Xiang-yu. Effects of Different Starter Supplying Ages on Growth Performance and Stomach Development of Hu Sheep Lamb[J]. ACTA VETERINARIA ET ZOOTECHNICA SINICA, 2016, 47(2): 305-314.

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开食料补饲日龄对湖羊羔羊生长性能和胃发育的影响

Effects of Different Starter Supplying Ages on Growth Performance and Stomach Development of Hu Sheep Lamb

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