摘要
本试验旨在研究紫茎泽兰提取物的除粪臭和驱避蚊蝇效果及对水牛血液生化指标的影响。选择100头健康青年水牛,随机分为4组,每组25头。对照组饲喂基础精料,试验组在基础精料中分别添加0.1%(Ⅰ)、0.2%(Ⅱ)和0.3%紫茎泽兰提取物(Ⅲ)。试验期37 d,包括预试期7 d和正试期30 d。结果表明:1)与对照组相比,试验组粗料干物质采食量提高,但差异不显著(P>0.05);试验Ⅱ组水牛平均日增重显著提高(P<0.05)。2)添加紫茎泽兰提取物后水牛粪便发酵10 d内氨气排放量降低,发酵5 d内硫化氢排放量降低。3)试验期第15和30天,15 min蚊蝇降落次数随紫茎泽兰提取物添加量的增加而降低,各试验组与对照组差异均显著(P<0.05)。4)试验期第30天时,与对照组相比,试验Ⅲ组的血液胆固醇含量显著提高(P<0.05);试验Ⅰ组血液尿素氮含量有显著提高(P<0.05)。结果提示,饲粮中加紫茎泽兰提取物可提高水牛生产性能,降低粪便排泄前期硫化氢和氨气排放量,具有驱避蚊蝇效果。
The objective of this study was to investigate the effects of Eupatorium adenophorum Spreng extract on deodorization,flies repellent of dung and blood biochemical indices of water buffaloes.A total of 100 healthy young buffaloes were randomly allocated into 4 groups with 25 heads in each group.Water buffaloes in control group were fed a basal concentrate,and those in trial groups were fed trial contentrates,which were supplemented with 0.1%,0.2% and 0.3% Eupatorium adenophorum Spreng extracts in the basal concentrate,respectively.The results showed as follows：1） compared with control group,roughage dry matter intake in trial groups was increased （P 〉 0.05） ; average daily gian of water buffaloes in trial group Ⅱ was significantly increased （P 〈 0.05）.2） The supplementation of Eupatorium adenophorum Spreng extract decreased ammonia in the first 10 days of fermentation and H2S emission in the first 5 days.3） With the increase of supplemental level of Eupatorium adenophorum Spreng extract,the alight flies number of dung was decreased,the difference between control group and trial groups was significant on the 15th and 30th days of the trial period （P 〈 0.05）.4） Compared with control group,blood cholesterol content in trial group Ⅲ was significantly increased （P 〈 0.05） ; blood urea nitrogen content in trial group Ⅰ was significantly increased （P 〈0.05）.In conlusion,Eupatorium adenophorum Spreng extract can improve the growth performance of water buffaloes,reduce ammonia and H2 S emission of dung in early excrete stage,and has the effect of flies repellent.
出处
《动物营养学报》
CAS
CSCD
北大核心
2013年第11期2755-2762,共8页
CHINESE JOURNAL OF ANIMAL NUTRITION
基金
广西自然科学基金青年基金项目(2012GXNSFBA053070)
水牛所基本科研业务费项目(水牛基1205008)
农业部948项目(2011-G26)
广西科学研究与技术开发国际合作课题(桂科合2012CA23026)
关键词
紫茎泽兰提取物
水牛
驱避蚊蝇
硫化氢
氨气
Eupatorium adenophorum Spreng extract
water buffaloes
flies repellent
ammonia
H2S
