日粮NDF水平对断奶獭兔血液免疫细胞与肠道特性的影响

发布时间：2018-06-08 15:06

本文选题：獭兔 + 中性洗涤纤维　；参考：《草业学报》2016年09期

【摘要】：研究日粮中性洗涤纤维(NDF)水平对断奶獭兔血液免疫细胞、小肠分泌型免疫球蛋白A(sIgA)、盲肠微生物及盲肠pH的影响,为揭示日粮NDF和肠道健康关系和断奶獭兔日粮的配制提供理论依据。选择35日龄体重差异不显著的断奶獭兔56只,随机分成4组,每组14只(每只为一个重复)。分别饲喂NDF水平为29%,33%,37%,41%的日粮。预试7d,正式试验28d。试验结束后各组随机选取6只屠宰采样,测量血液及肠道各项指标。结果表明,随着日粮NDF水平提高,断奶獭兔白细胞数无显著差异(P0.05);血液淋巴细胞数上升(P0.05);十二指肠和空肠sIgA+细胞数显著增加(P0.05);盲肠总细菌数无显著差异(P0.05);拟杆菌数先增加后减少,33%组显著高于其他各组(P0.05);乳酸菌和大肠杆菌数降低,且乳酸菌29%组显著高于37%组和41%组(P0.05),大肠杆菌41%组显著低于29%和33%组(P0.05);盲肠pH值升高;腹泻率和死亡率降低。日粮NDF水平提高对断奶獭兔的肠道健康有利,NDF 41%组断奶獭兔肠道最健康。
[Abstract]:To study the effects of dietary neutral detergent fiber (NDF) levels on blood immune cells, intestinal secretory immunoglobulin A (IgA), cecal microbes and cecum pH in weaned rex rabbits. To reveal the relationship between dietary NDF and intestinal health and the preparation of weaning rex rabbit diet. Fifty-six weaned rex rabbits with no significant difference in body weight at 35 days old were randomly divided into 4 groups with 14 rabbits in each group. The NDF level was 29%, 33% and 41% respectively. After 7 days of pre-test, 28 days of formal test were conducted. At the end of the experiment, 6 slaughtering samples were randomly selected to measure the blood and intestinal indexes. The results showed that, with the increase of dietary NDF level, There was no significant difference in white blood cell count in weaning rex rabbits (P0.05); the number of blood lymphocytes increased (P0.05); the number of Siga cells in duodenum and jejunum increased significantly (P0.05); there was no significant difference in total bacterial count in caecum (P0.05); the number of bacilli increased first, then decreased (33%), which was significantly higher than that in other groups. The number of lactic acid bacteria and Escherichia coli decreased, Lactic acid bacteria 29% group was significantly higher than 37% group and 41% group P0.05, Escherichia coli 41% group was significantly lower than 29% and 33% group P0.05, cecal pH value increased, diarrhea rate and mortality decreased. The increase of dietary NDF level was beneficial to the intestinal health of weaned rex rabbits.
【作者单位】：甘肃农业大学动物科技学院;西北农林科技大学动物科技学院;
【基金】：陕西省农业公关项目(2010K01-16) 西安市农业攻关项目(NC09049-4)资助
【分类号】：S829.1

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