中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 不同饲养模式下饲粮非纤维性碳水化合物/中性洗涤纤维对生长期杜寒杂交母羊生长性能、营养物质表观消化率和甲烷产量的影响 动物营养学报 2018 (4) 1367-1376
Position: Home > Articles > Effects of Different Dietary Non-fiber Carbohydrate(NFC)/Neutral detergent Fiber(NDF) on Growth Performance,Nutrient Apparent Digestibility and Methane Emissions of Growing Dorper and Thin-Tailed Han Crossbred Ewes Chinese Journal of Animal Nutrition 2018 (4) 1367-1376

不同饲养模式下饲粮非纤维性碳水化合物/中性洗涤纤维对生长期杜寒杂交母羊生长性能、营养物质表观消化率和甲烷产量的影响

作  者：
周艳;许贵善;董利锋;邓凯东;马涛;刁其玉
单  位：
金陵科技学院动物科学与技术学院;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;塔里木大学动物科学技术学院
关键词：
甲烷;非纤维性碳水化合物/中性洗涤纤维;生长性能;消化代谢;呼吸测热
摘  要：
本试验旨在借助开路式呼吸测热系统研究饲粮非纤维性碳水化合物(NFC)/中性洗涤纤维(NDF)对生长期杜寒杂交母羊生长性能、营养物质表观消化率及甲烷产量的影响。采用单因素试验设计,选取体况良好、体重为(27.8±0.5)kg的母羊30只,根据体重一致原则,分配到3组,各组饲粮NFC/NDF分别为0.78(精粗比为35∶65)、1.03(精粗比为50∶50)、2.17(精粗比为65∶35),每组10只羊。试验期为25 d,包括3 d调整期、7 d预试期和15 d正试期。结果表明:在NFC/NDF=0.78组自由采食和其他组限饲条件下,3组试验羊的初始体重和结束体重以及平均日增重无显著性差异(P>0.05)。当饲粮NFC/NDF由0.78增加至2.17时,干物质采食量显著降低(P<0.05),干物质、有机物和粗蛋白质表观消化率显著增加(P<0.05),NDF和酸性洗涤纤维(ADF)表观消化率无显著性差异(P>0.05)。当饲粮NFC/NDF由0.78增加至2.17时,甲烷能、单位干物质采食量的甲烷产量、单位总能摄入量的甲烷能产量显著降低(P<0.05)。结果提示,在平均日增重一致的前提下,高NFC/NDF饲粮料重比较低,且甲烷转化效率较低;对生长期杜寒杂交母羊来说,限饲条件下饲喂NFC/NDF为2.17的饲粮在提高生产效益的同时又兼顾甲烷减排,效果相对最佳。
译  名：
Effects of Different Dietary Non-fiber Carbohydrate(NFC)/Neutral detergent Fiber(NDF) on Growth Performance,Nutrient Apparent Digestibility and Methane Emissions of Growing Dorper and Thin-Tailed Han Crossbred Ewes
作  者：
ZHOU Yan;XU Guishan;DONG Lifeng;DENG Kaidong;MA Tao;DIAO Qiyu;Institute of Animal Science and Technology,Tarim University;Key Laboratory of Feed Biotechnology of the Ministry of Agriculture ,Feed Research Institute ,Chinese Academy of Agricultural Sciences;College of Animal Science and Technology,Jinling Institute of Technology;
关键词：
methane;;non-fiber carbohydrate/neutral detergent fiber;;growth performance;;nutrient apparent digestibility;;respirometry
摘  要：
The objective of the present study was to investigate the effects of dietary non-fiber carbohydrate(NFC)/neutral detergent fiber(NDF) on growth performance,nutrient apparent digestibility and methane emissions of Dorper and thin-tailed Han crossbred ewes using open-respiration system.Thirty healthy ewes weighted(27.8 ± 0.5) kg were allocated to three groups,with a single factor experiment design,according to their body weight.Dietary NFC/NDF was 0.78,1.03 and 2.17,respectively,and concentrate to forage ratio was 35 ∶ 65,50 ∶ 50 and 65 ∶ 35,respectively.Each group had 10 ewes.The whole experiment lasted for 25 d with 3 d of adjustment,7 d of pre-test and 15 d of test.The results showed as follows:under the condition of ad libitum in NFC/NDF = 0.78 group and dietary restriction in other groups,there were no significant differences in initial body weight,final body weight and average daily gain(ADG) among groups(P > 0.05).As dietary NFC/NDF increased from 0.78 to 2.17,dry matter intake(DMI) was significantly decreased(P <0.05),whereas dry matter,organic matter and crude protein apparent digestibility were significantly increased(P<0.05),but no significant differences were observed in NDF and acid detergent fiber(ADF) apparent digestibility among groups(P > 0.05).As dietary NFC/NDF increased from 0.78 to 2.17,methane energy,methane emission per unit of DMI,methane energy emission per unit of gross energy intake were significantly decreased(P< 0.05).In conclusion,under the similar ADG,lower feed to gain ratio and methane emission are observed in high NFC/NDF diet; it is appropriate to offer growing ewes diet with NFC/NDF of 2.17,which can increase production efficiency and control methane emission.

相似文章

导出引用
计量
文章访问数: 5
HTML全文浏览量: 0
PDF下载量: 1

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46