期刊论文

Effects of sodium butyrate on growth performance and intestinal mucosa morphology in paddlefish （Polyodon spathula）

中文

中国饲料

1004-3314

2017

13

39-41+45

10.15906/j.cnki.cn11-2975/s.20171310

国家大宗淡水鱼类产业技术体系项目（CARS-46-42） 益阳市科技局重点项目（YK1644）

本校为第一机构

本试验以初始体质量(48.87+3.13)g的匙吻鲟(Polyodon spathula)为研究对象,在基础饲料中分别添加0、1.0、2.5、5.0、7.5 g/kg的包膜丁酸钠,配制成5种等氮等能的试验饲料,研究不同浓度包膜丁酸钠对匙吻鲟生长和肠道黏膜形态的影响.试验在水库网箱中进行,每网箱饲喂15尾,每处理组3个重复,投喂量为鱼体质量的3％ ～ 5％,日投喂3次,试验持续10周.试验结果表明:在饲料中添加丁酸钠对匙吻鲟有一定的促生长作用,显著提高了匙吻鲟肠道绒毛高度/隐窝深度的比值.当丁酸钠添加量为1.0 g/kg时,匙吻鲟增重率和特定生长率最高,比对照组分别提高了16.87％和9.3％(P＜0.05);丁酸钠添加量为1.0 g/kg时,匙吻鲟肠道...

A 10-week feeding experiment was conducted to evaluate the effects of dietary sodium butyrate on growth performance and intestinal mucosa morphology in paddlefish（Polyodon spathula）with body weight（48.87±3.13）g.The grade levels of sodium butyrate at 0（control）,1.0,2.5,5.0,7.5 g/kg respectively.Each diet was randomly fed to a group of15 fishes per cage in triplicates.The fish were fed three times daily at a rate of 3%~5%of body weight.The results showed that sodium butyrate could significantly affect growth,intestinal villus height and cr...