当前位置: 首页 > 文章 > 氧乐果对人工瘤胃营养物质消化代谢的影响 山东农业大学学报(自然科学版) 2010,41 (1) 96-101
Position: Home > Articles > EFFECTS OF OMETHOATE ON ARTIFICIAL RUMEN NUTRIENT METABOLISM Journal of Shandong Agricultural University(Natural Science Edition) 2010,41 (1) 96-101

氧乐果对人工瘤胃营养物质消化代谢的影响

作  者:
姚宝强;万发春;杨在宾;杨维仁;姜淑贞;张桂国
单  位:
山东农业大学动物科技学院;山东省农业科学院畜牧兽医研究所
关键词:
氧乐果;DFCCS-Ⅱ型双外流连续培养系统;营养物质消化率
摘  要:
本研究旨在探讨氧乐果对人工瘤胃营养物质代谢规律的影响。利用DFCCS-Ⅱ型双外流连续培养系统,采用4×4拉丁方设计,试验分4个时期完成,每个时期设4个氧乐果水平:0、10、100与1000 mg/kg日粮。每期预试期4 d,正试期5 d,测定不同时间点的瘤胃液pH值、NH3-N浓度及干物质(DM)、有机物(OM)、粗蛋白质(CP)、中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)和总能(GE)表观消化率。结果表明,日粮中添加10、100和1000 mg/kg氧乐果,使人工瘤胃液NH3-N浓度分别降低1.97%、2.12%和6.06%(P<0.05),CP表观消化率分别降低17.60%、19.05%和13.09%(P<0.05)。然而,添加氧乐果可以使DM表观消化率分别提高2.92%、6.18%、4.93%(P<0.05);OM表观消化率提高12.92%、19.33%、16.24%(P<0.05);NDF表观消化率提高4.95%、6.10%、9.38%(P<0.05);ADF表观消化率提高9.00%、12.40%、16.22%(P<0.05);GE表观消化率提高3.65%、9.35%、13.20%(P<0.05)。另外,日粮中添加氧乐果对人工瘤胃液pH值没有显著影响(P>0.05)。结果揭示,日粮中添加氧乐果能够使人工瘤胃CP利用率降低,使DM、OM、NDF、ADF和GE的利用率增加。
译  名:
EFFECTS OF OMETHOATE ON ARTIFICIAL RUMEN NUTRIENT METABOLISM
作  者:
YAO Bao-qiang1,WAN Fa-chun2,YANG Zai-bin1 YANG Wei-ren1,JIANG Shu-zhen1,ZHANG Gui-guo1(1.College of Animal Science and Technology,Shandong Agriculture University,Taian 271018,China;2.Institute of Animal Science and Veterinary Medicine,Shandong Academy of Agricultural Sciences,Jinan 250100,China)
关键词:
Omethoate;DFCCS-Ⅱdual flow continuous culture system;Nutrient digestibility
摘  要:
An experiment was conducted to study the effects of omethoate on metabolism regularity of artificial rumen nutrient.DFCCS-Ⅱdual flow continuous culture system was used in the current research.The total test was divided into four stages.Each period had a length of 9 days,consisting of a 4-day adjustment period followed by a 5-day sampling period.Four omethoate levels were designed,0,10,100 and 1000 mg omethoate / kg feed,respectively in each stage.Determination of change law of pH value and NH3-N concentration at different time points and apparent digestibility of DM,OM,CP,NDF,ADF and GE were accomplished in the sampling period in a 4 4 Latin square design.The results are summarized as follows.1) Compared with the control,the NH3-N concentration of treated groups were decreased by 1.97 %,2.12 % and 6.06 %,respectively(P<0.05),and the apparent digestibility of CP decreased by 17.60 %,19.05 % and 13.09 %,respectively(P<0.05).2) Except for CP,the apparent digestibility of DM,OM,NDF,ADF and GE were significantly increased with diets exposured to omethoate(P<0.05).The apparent digestibility of DM were increased by 2.92 %、6.18 % and 4.93 %,respectively,and OM 12.92 %、19.33 % and 16.24 %,respectively,and NDF 4.95 %、6.10 % and 9.38 %,respectively,and ADF 9.00 %、12.40 % and 16.22 %,respectively,and GE 9.00 %、12.40 % and 16.22 %,respectively,compared to the control.3) The pH value was not affected(P>0.05).These results indicated that artificial rumen CP availability was decreased,but DM、OM、NDF、ADF and GE availability were increased with addition of omethoate in diets.

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