几种中草药对绵羊瘤胃发酵、抗氧化功能和营养物质消化率的影响  

Effects of supplemental several Chinese herbs additives on rumen fermentation,antioxidant functions and nutrient digestibility in sheep

作　　者：乔国华[1] 周学辉[1] 王晓力[1] 杨晓[1] 张怀山[1] 李锦华[1] 

机构地区：[1]中国农业科学院兰州畜牧与兽药研究所

出　　处：《中国饲料》2011年第11期13-16,共4页China Feed

基　　金：中央级公益性科研院所基本科研业务费专项(BRF100203)

摘　　要：本研究包括2个试验。试验一,采用单因素随机区组试验设计研究了黄芪、党参、女贞子对绵羊屠宰体增重和抗氧化功能的影响。试验共4个处理,含3种中草药和1个对照组。每个处理4个重复,每个重复1只羊。中草药添加量为6 g/d。结果表明,女贞子组提高了绵羊屠宰体增重(P<0.05),改善了绵羊血液抗氧化功能,提高了谷胱甘肽还原酶和超氧化物歧化酶活性,降低了血浆丙二醛含量(P<0.05)。其他组对绵羊屠宰体增重和血液抗氧化功能影响不显著(P>0.05)。试验二,采用4×4拉丁方试验设计研究了女贞子提取物对绵羊瘤胃发酵和血液生化指标的影响。试验分4个处理,女贞子提取物的添加量分别为0、100、300 mg/kg和500 mg/kg。结果表明:添加量为300mg/kg和500 mg/kg组在晨饲后2、4、6、8 h显著提高了绵羊瘤胃液总挥发性脂肪酸浓度和丙酸的浓度,降低了瘤胃液氨态氮的浓度和血浆尿素氮的浓度。300 mg/kg和500 mg/kg组显著提高了日粮有机物质和干物质表观消化率(P<0.05)。Two experiments were carried out in this experiment.In experiment 1,treatments in a randomized completely block design（RCBD） with four replicate per treatment were used to examine the effects of supplemental several Chinese herbs（6 g/d） on antioxidant function and slaughtered body weight gain in sheep.Treatments were Fructus Ligustri Lucidi,Radix Astragali,Radix Codonopsis and control.Results showed that Fructus Ligustri Lucidi supplementation improved the antioxidant function and slaughtered body weight gain in sheep（P 0.05）.In experiment 2,four sheep were randomly assigned to a 4 × 4 Latin square design to investigate the effect of Fructus Ligustri Lucidi Extract（FLLE） on rumen fermentation and nutrient digestibility in sheep.Results showed that diets containing FLLE at 300 mg/kg or 500 mg/kg of dry matter increased total volatile fatty acid and propionate concentration,decreased ammonia concentration in the ruminal fluid and reduced blood urea nitrogen concentration at 2,4,6 h and 8 h after morning feeding（P 0.05）.Sheep received FLLE supplementation at all levels of dosages had no effect on ruminal pH value and acetate concentration at all sampling time points（P 0.05）.Dry matter and organic matter of the diet were increased in response to supplemental FLLE at 300 mg/kg and 500 mg/kg of dry matter to diet（P 0.05）.All levels of FLLE addition had no effect on digestibility of diet＇s NDF,ADF and crude protein（P 0.05）.

关 键 词：中草药 瘤胃发酵 营养物质消化率 抗氧化功能 绵羊 

分 类 号：S816.7[农业科学—饲料科学]