复合发酵剂对葵花副产物发酵品质及瘤胃降解率的影响  

Effects of Compound Starter on Silage Quality and Rumen Degradation Rate of Sunflower Byproduct

作　　者：李肖 陈永成 黄嵘峥 齐亚银[1,3] 张凡凡 马春晖[1] LI Xiao;CHEN Yong-cheng;HUANG Rong-zheng;QI Ya-yin;ZHANG Fan-fan;MA Chun-hui(College of Animal Science and Technology,Shihezi University,Shihezi,Xinjiang 832000,China;Xinjiang Yili Prefecture Animal Husbandry Station,Yining,Xinjiang 835000,China;Xinjiang Taikun Group Changji Feed Co.Ltd,Changji,Xinjiang 831100,China)

机构地区：[1]石河子大学动物科技学院,新疆石河子832000 [2]新疆伊犁州畜牧总站,新疆伊宁835000 [3]新疆泰昆集团昌吉饲料有限责任公司,新疆昌吉831100

出　　处：《草地学报》2023年第5期1564-1570,共7页Acta Agrestia Sinica

基　　金：农业农村部:国家现代农业产业技术体系项目(CARS);新疆维吾尔自治区优质饲草产业技术体系项目(2022XJSC-Z-02);新疆维吾尔自治区创新环境(人才、基地)建设专项(2021D14008);昌吉州适度规模化肉牛育肥的技术集成与示范推广项目(2021Z02)资助。

摘　　要：研究添加复合发酵剂对葵花(Helianthus annuus)副产物微贮营养品质、发酵品质和瘤胃降解率的影响。以葵花副产物为试验材料,采用单因素试验设计,试验分为2个处理,即对照(CK处理)和添加复合发酵剂(SY处理),复合发酵剂为:植物乳杆菌(Lactobacillus plantarum)9.3×105cfu·g-1,糖蜜3.57%,尿素0.3%,纤维素酶0.14%。发酵60 d后开袋进行营养、发酵品质、微生物数量和瘤胃降解率分析。结果表明:(1)SY处理的可溶性碳水化合物、干物质、粗蛋白、乳酸、氨态氮含量及乳酸菌数量显著高于CK处理(P<0.05);中性洗涤纤维和酸性洗涤纤维含量、pH值及霉菌和酵母菌数量显著低于CK处理(P<0.05)。(2)SY处理在24和48 h的干物质降解率和有机物降解率显著高于CK处理(P<0.05)。在葵花副产物微贮中添加复合发酵剂,能够显著改善发酵品质,促进反刍家畜利用。The effects of compound starter on nutrient quality,fermentation quality and rumen degradation rate of micro-storage silage of sunflower byproducts were investigated.In the investigation,the experiment was divided into two treatments,namely the control(CK)and the addition of compound fermentation agent(SY).The compound fermentation agent was:Lactobacillus plantarum 9.3×105 cfu·g-1,molasses 3.57%,urea 0.3%,cellulase 0.14%,respectively.After 60 days of fermentation,the fermentation bags were opened for the analysis of nutrition,fermentation quality,microbial quantity and rumen degradation rate.The results showed as follows:(1)the contents of the water soluble carbohydrate(WSC),dry matter(DM),crude protein(CP),lactic acid(LA)and NH 3-N and the number of lactic acid bacteria(LAB)of the silage under the SY treatment were significantly higher than those in CK treatment(P<0.05).The content of NDF and ADF,pH value and quantity of Mold and Yeast were significantly lower than those of CK treatment(P<0.05).(2)DMD and OMD of SY treatment at 24 and 48 h were significantly higher than those of CK treatment(P<0.05).It was concluded that the silage of sunflower byproducts under adding the compound starter could be significantly improved on its fermentation quality and be promoted its utilization by ruminants.

关 键 词：葵花副产物 复合发酵剂 发酵品质 瘤胃降解率 

分 类 号：S816.6[农业科学—饲料科学]