不同青貯方式對(duì)菠蘿莖葉飼用品質(zhì)的影響.pdf

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1、熱帶作物學(xué)報(bào)2014，35(5)：999—1004ChineseJournalofTropicalCrops不同青貯方式對(duì)菠蘿莖葉飼用品質(zhì)的影響李夢(mèng)楚，一，王定發(fā)，周漢林，周璐麗1華中農(nóng)業(yè)大學(xué)動(dòng)物科技學(xué)院．湖北武漢4300702中國(guó)熱帶農(nóng)業(yè)科學(xué)院熱帶作物品種資源研究所．海南儋州571737摘要分析添加尿素和廢糖蜜對(duì)青貯菠蘿莖葉營(yíng)養(yǎng)成分的影響．并測(cè)定青貯后菠蘿莖葉養(yǎng)分的瘤胃降解率。為提高菠蘿莖葉的飼料化利用提供理論依據(jù)。試驗(yàn)以直接青貯菠蘿莖葉為對(duì)照組，分別添加10g／kg尿素、20g廢糖蜜、10kg尿素+20g／kg廢糖蜜為試驗(yàn)組，青貯45d后進(jìn)

2、行營(yíng)養(yǎng)成分、養(yǎng)分的瘤胃降解分析。結(jié)果表明：與對(duì)照組相比，添加10尿素青貯菠蘿莖葉可以顯著降低單寧含量，提高粗蛋白(CP)、氨態(tài)氮(NH3一N)含量(p<0．05)；添加20g／kg廢糖蜜，CP、單寧含量顯著提高(p

3、解率。關(guān)鍵詞菠蘿莖葉；青貯；尿素；廢糖蜜；瘤胃降解中圖分類(lèi)號(hào)$668．3．S816．5文獻(xiàn)標(biāo)識(shí)碼AEfectsofDifferentSilageMethodsonFeedingValueofPineappleLeavesLIMengchu，WANGDingfa2，ZHOUHanlin，ZHOULuli1CollegeofAnimalScienceandTechnology,HuazhongAgriculturalUniversity,Wuhan，Hubei430070,China2TropicalCropsGeneticResourcesIns

4、titute，CATAS,Danzhou,Hainan57I737，ChinaAbstractTheexperimentwasconductedtoinvestigatetheeffectoftheadditionofureaandwastemolassesonthefeedingvalueofsilagepineappleleaves．Theresultswouldprovideatheoreticalbasisforimprovingtheutilizationofpineappleleaves．Thetreatmentincludedth

5、econtrolgroup(silagedirectly)，silagewith10g／kgurea，silagewith20g／kgwastemolasses．10g／kgureaand20g／kgwastemolassessimuhaneously．Thenutrientscontentandlumendegradationofnutrientswereanalyzedafter45dsilagetreatment．Theresultsshowedthatthesilagequalityincreasedcomparedwiththecon

6、trolgroup．Theadditionof10g／kgureadecreasedthetanninslevel，andimprovedCPandNH3一Ncontent(t9<0．05)．TheCPandtanninscontentsignificantlyimprovedby20g／kswastemolassestreatment(p<0．05)．ThecontentofCPandammoniacalnitrogenfurtherincreasedinthetreatedgroupwiththeadditionof10g／kgureaan

7、d20g／kgwastemolassescomparedwiththecontrol(P<0．05)，andtheaceticacidleveldecreased．ThedegradationrateofDM，CPandNDFat72hinthegroupswiththeadditionofureaandwastemolassesincreasedsignificantlycomparedwiththecontrolgroup(P<0．05)．Theresultssuggestedthattheadditionof10#ksurea+20g／k

8、gwastemolassescouldimprovethesilagequalityandrumendegradationofnutrientssig