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当前位置: 首页 > 文章 > 饲喂水平对杂交肉羊(母)营养物质代谢及能量需要参数的影响 东北农业大学学报 2017 (7) 55-62
Position: Home > Articles > Effect of different feeding levels on substance and energy metabolism of crossbred ewes Journal of Northeast Agricultural University 2017 (7) 55-62

饲喂水平对杂交肉羊(母)营养物质代谢及能量需要参数的影响

作  者：
魏炳栋;刁其玉;陈群;杨华明;邱玉朗;王世琴;李林
单  位：
吉林省农业科学院畜牧分院;中国农业科学院饲料研究所农业部饲料生物技术重点实验室
关键词：
母羊;能量代谢;饲养水平;开放式呼吸测热装置
摘  要：
采用完全随机试验设计,将15只出生日期相近、体况良好、体重均匀的杂交母羊随机分成3组(每个处理5只羊),分别按自由采食(AL)、限饲70%(IR70)和限饲40%(IR40)3水平投喂试验饲粮,试验期26 d,连续两期试验。结果表明,饲喂水平对杜寒杂交母羊生长性能及营养物质采食量有极显著影响(P<0.01),但对营养物质消化率无影响(P>0.05);饲喂水平对杂交肉羊甲烷排放量、甲烷能及产热量均有极显著影响(P<0.01);试验母羊绝食60 h时,FHP为0.20和0.24 MJ·kg~(-1)·W0.75,NEm为0.24和0.288 MJ·kg~(-1)·W0.75。文章旨在利用"开放式"呼吸测热装置研究杜寒杂交母羊营养物质代谢及能量需要参数,为肉羊科学饲养提供依据。
译  名：
Effect of different feeding levels on substance and energy metabolism of crossbred ewes
作  者：
WEI Bingdong;DIAO Qiyu;CHEN Qun;YANG Huaming;QIU Yulang;WANG Shiqin;LI Lin;Key Laboratory of Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences;Branch Institute of Animal Husbandry, Jilin Academy of Agricultural Sciences;
关键词：
ewes;;energy metabolism;;feeding levels;;open respiratory calorimetry measuring device
摘  要：
Fifteen Dorper and Thin-Tailed Han lambs crossbred F1 lambs were selected. The ewes were randomly allocated to 3 groups and 5 ewes per group. The ewes were offered a mixture diet for ad libitum, or 70% or 40% of the ad libitum intake for 52 d. The results showed that the growth performance and intake of dry matter(DM), nitrogen(N), neutral detergent fiber(NDF) and acid detergent fiber(ADF) of ewes influenced significantly with decreasing levels of feed intake(P<0.01), but the apparent digestibility of dry matter(DM), nitrogen(N), neutral detergent fiber(NDF) and acid detergent fiber(ADF) did not influence(P>0.05); the methane emission, methane energy and heat production influenced significantly with decreasing levels of feed intake(P<0.01); the FHP was 0.20 and 0.24 MJ·kg-1·W0.75, and the NEm was 0.24 and 0.288 MJ · kg-1· W0.75.This experiment was conducted to investigate the effects of different feeding levels on energy metabolism of crossbred ewes by using open respiratory calorimetry measuring device. The trails was conducted according to a completely random design.

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