| 0～56日龄舍饲肉用羔羊前胃功能发育研究 |
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| 引用本文： | 郭江鹏,潘建忠,李发弟,郝正里,马友记,张元兴,李海静,马腾.0～56日龄舍饲肉用羔羊前胃功能发育研究[J].草业学报,2011,20(3):128-135. |
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| 作者姓名： | 郭江鹏 潘建忠 李发弟 郝正里 马友记 张元兴 李海静 马腾 |
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| 作者单位： | 甘肃农业大学动物科学技术学院,甘肃兰州,730070;甘肃农业大学动物科学技术学院,甘肃兰州730070;甘肃省饲料工程技术研究中心,甘肃兰州730070 |
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| 基金项目： | 现代农业产业技术体系建设专项资金，甘肃省自然科学基金，甘肃省教育厅高等学校研究生导师科研项目 |
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| 摘 要： | 选用甘肃肉用绵羊新品种选育群公羔(单羔)45只,分为9组,每组5只,分别于0,7,14,21,28,35,42,49和56 d屠宰、取样,测定与前胃功能发育相关的内容物相对重量、pH值及瘤胃内容物VFAs、主要微生物消化酶等指标的变化规律.结果表明,羔羊瘤网胃内容物相对重量(%全胃内容物重量)在0～35 d呈线性增加(...
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| 关 键 词： | 0～56日龄 舍饲羔羊 前胃 功能 发育 |
| 收稿时间： | 2011-02-25 |
Functional development of forestomach in confined lambs at the age of 0-56 d |
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| GUO Jiang-peng,PAN Jian-zhong,LI Fa-di,HAO Zheng-li,MA You-ji,ZHANG Yuan-xing,LI Hai-jing,MA Teng.Functional development of forestomach in confined lambs at the age of 0-56 d[J].Acta Prataculturae Sinica,2011,20(3):128-135. |
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| Authors: | GUO Jiang-peng PAN Jian-zhong LI Fa-di HAO Zheng-li MA You-ji ZHANG Yuan-xing LI Hai-jing MA Teng |
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| Institution: | 1 (1.College of Animal Science and Technology,Gansu Agricultural University,Lanzhou 730070,China;2.Gansu Feed Engineer Technology Research Center,Lanzhou 730000,China) |
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| Abstract: | Forty-five male lambs(Gansu modern breeding sheep group) were divided into 9 treatments(5 animals in every treatment),killed and sampled at 0,7,14,21,28,35,42,49 or 56 d respectively.The relative weight and pH value of contents in every compartment of forestomach,concentration and Molar proportion of volatile fatty acids,and activity of microbic enzymes of rumen contents were measured.The relative weight of contents(%total weight of content in stomach) in reticulorumen were linearly increase during 0 to 35 d(R2=0.93,P=0.00),and was 61.54% and 76.87% at 28 and 35 d respectively.There was lower pH value in contents of rumen,reticulum and omasum,it was changed between in 5.30 to 6.03,5.37 to 6.42 and 5.39 to 6.15 respectively.It was mainly acetic acid fermentation type,and the ratio of acetic to propionic(A/P) was changed between 2.18 to 3.82 in rumen contents,and there was higher propionic concentration.The higher activity of protease,α-amylase,cellulase in rumen contents was respectively appeared at 21,7 and 14 d.The functional development in forestome was preliminarily completed at 28 d in the conditions of this trial.With confined raising and supplying the suited supplementary diet from 7 d age in days,the early weaning technology may be used at 35 or 28 d after birth in lambs. |
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| Keywords: | 0-56 d confined lamb forestomach function development |
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