摘要
选取1日龄黄羽肉鸡公雏240羽,随机分为4组,每组5个重复,每个重复12只.试验Ⅰ、Ⅱ、Ⅲ和Ⅳ组肉鸡在饲喂基础日粮的基础上,分别饮用含0%、0.15%、0.20%和0.25%甲酸与木质磺酸混合物(MFALA)的水,试验期21 d,研究在饮用水中添加不同含量的MFALA对黄羽肉鸡生产性能及空肠组织结构、紧密连接蛋白和免疫因子的影响.结果表明:(1)Ⅱ组肉鸡的平均日增重显著高于Ⅰ组(P<0.05);(2)Ⅱ组肉鸡空肠的绒毛高度及绒毛高度与隐窝深度的比值显著高于Ⅰ组(P<0.05);(3)Ⅱ组肉鸡空肠紧密连接蛋白occludin和claudin-1基因mRNA的相对表达量显著高于Ⅰ组(P<0.05);(4)Ⅱ组肉鸡空肠抗炎因子IL-4基因mRNA的相对表达量显著高于Ⅰ组(P<0.05),Ⅱ组肉鸡空肠促炎因子IL-6基因mRNA的相对表达量显著低于Ⅰ组(P<0.05).由此可见,在饮用水中添加MFALA能改善黄羽肉鸡空肠的组织结构、紧密连接蛋白和免疫因子,提高黄羽肉鸡的生产性能.
To investigate the efficacy of mixture of formic acid and lignosulfonic acid(MFALA) on improving the development of yellow broilers, 240 1-day-old yellow-feathered male broilers were randomized into 4 groups, with 5 replicates per group and 12 broilers per replicate. Group Ⅰ-Ⅳ were respectively supplemented with 0%, 0.15%, 0.20% and 0.25% liquid MFALA on the basis of basal diet for 21 d. The results showed that in group Ⅱ average daily gain, the height of jejunum villi, villus height/crypt depth ratio, relative quantitative expressions of jejunal tight junction occludin and claudin-1 were significantly increased compared with the control(P<0.05). Relative expression level of the jejunal IL-4 gene in group Ⅱ rose significantly while that of the IL-4 gene dropped compared with the control(P<0.05). In conclusion, MFALA can improve the intestinal histomorphology, tighten junction protein and mucosal immune factors of yellow broilers, thus boosting the growth performance of yellow broilers.
作者
周嘉鑫
黄义强
林智鑫
王全溪
高玉云
王长康
ZHOU Jiaxin;HUANG Yiqiang;LIN Zhixin;WANG Quanxi;GAO Yuyun;WANG Changkang(College of Animal Science,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China)
出处
《福建农林大学学报（自然科学版）》
CSCD
北大核心
2020年第3期360-365,共6页
Journal of Fujian Agriculture and Forestry University:Natural Science Edition
基金
福建省现代家禽产业体系项目(2019-2022).
关键词
甲酸与木质磺酸的混合物
黄羽肉鸡
生产性能
空肠组织结构
紧密连接蛋白
免疫因子
mixture of formic acid and lignosulfonic acid
yellow broiler
growth performance
intestinal histomorphology
tight junction proteins
immune factor
