摘要
选用4只3岁体重(55±2)kg装有永久性瘤胃瘘管的阉公羊,采用4×4拉丁方设计,研究纳米铜(日粮中添加量分别为0、10、20、30 mg/kg)对瘤胃营养物质降解率的影响。结果表明:本试验条件下,纳米铜对苜蓿干草和羊草干草的干物质(DM)、有机物(OM)、中性洗涤纤维(NDF)和酸性洗涤纤维(ADF)有效降解率影响均不显著(P>0.05),根据试验结果推断纳米铜添加量低于30 mg/kg不会影响绵羊瘤胃微生物对粗饲料的消化。
The experiment was conducted to study the effects of nano-copper （0,10,20 and 30 mg/kg）on ruminal degradability of hay.Four sheeps（55 kg±2 kg of body weight, 3 years old）with permanent rumen fistula were used in a 4x4 Latin square experiment.The result showed that：nano-eopper had no significant influence on ruminal digestibility of dry matter（DM） ,organic matter（OM）,neutral detergent fiber（NDF）and acid deterdent fiber（ADF）of alfalfa hay and Chinese wildrye hay （P 〉 0.05 ）.The results suggested that adding less than 30 mg/kg of nano-copper had no effect on roughage digestion of rumen microbial.
出处
《中国饲料》
北大核心
2013年第12期23-24,27,共3页
China Feed
基金
山西省科技攻关项目(20110311031)
关键词
纳米铜
绵羊
瘤胃降解率
苜蓿干草
羊草干草
nano-copper
sheep
ruminal digestibility
alfalfa hay
Chinese wildrye
