发酵红薯渣对黄羽肉鸡生长性能、血清生化指标、免疫指标及肠道形态的影响  

Effects of fermented sweet potato pomace on growth performance,serum biochemical indexes,immune indexes,and intestinal morphology of yellow-feathered broilers

作　　者：谢超 张静梦 宾石玉[1,2] XIE Chao;ZHANG Jing-meng;BIN Shi-yu

机构地区：[1]广西师范大学生命科学学院,广西桂林541006 [2]广西师范大学珍稀濒危动植物生态与环境保护教育部重点实验室,广西桂林541006

出　　处：《饲料研究》2024年第17期35-40,共6页Feed Research

基　　金：广西科技计划项目(项目编号:桂科AB19259012、桂科AB23026022)。

摘　　要：试验旨在研究发酵红薯渣等量替代玉米对黄羽肉鸡生长性能、血清生化指标、免疫指标及肠道形态的影响。选择360羽1日龄黄羽肉鸡,随机分为4组,每组6个重复,每个重复15羽肉鸡。对照组饲喂基础饲粮;Ⅰ组、Ⅱ组、Ⅲ组在1~21日龄时分别利用1%、3%和5%的发酵红薯渣等量替代玉米,在22~42日龄和43~70日龄时分别利用5%、8%和10%的发酵红薯渣等量替代玉米。试验期70 d。结果显示,发酵红薯渣等量替代玉米对黄羽肉鸡的平均日增重、平均日采食量和料重比无显著影响(P>0.05)。与对照组相比,Ⅰ组、Ⅱ组黄羽肉鸡的血清高密度脂蛋白胆固醇(HDL-C)、免疫球蛋白A(IgA)、免疫球蛋白G(IgG)、白细胞介素-2(IL-2)、白细胞介素-6(IL-6)含量显著增加(P<0.05)。与对照组相比,21日龄时,Ⅰ组的十二指肠绒毛高度和隐窝深度显著降低(P<0.05),回肠隐窝深度显著升高(P<0.05),Ⅰ组、Ⅲ组的回肠绒毛高度与隐窝深度的比值(V/C)显著降低(P<0.05);42日龄时,Ⅲ组的十二指肠、空肠绒毛高度及空肠隐窝深度显著降低(P<0.05),Ⅰ组的十二指肠V/C显著升高(P<0.05),Ⅰ组、Ⅱ组的回肠绒毛高度显著升高(P<0.05);70日龄时,Ⅰ组、Ⅱ组的十二指肠绒毛高度及V/C显著升高(P<0.05),隐窝深度显著降低(P<0.05),Ⅱ组的空肠绒毛高度和V/C显著升高(P<0.05)。研究表明,饲粮中添加发酵红薯渣等量替代玉米,可改善黄羽肉鸡的血清免疫指标和肠道组织形态,1~21日龄最适添加量为5%,22~70日龄最适添加量为8%。The experiment aimed to investigate the impact of substituting corn with fermented sweet potato potato on the growth performance,serum biochemical indexes,immune indexes,and intestinal morphology of yellow-feathered broilers.A total of 360 one-day-old yellow-feathered broilers were randomly divided into four groups,with six replicates in each group,and 15 broilers in each replicate.The broilers in control group were fed a basal diet.GroupsⅠ,Ⅱ,andⅢwere fed diets with 1%,3%,and 5%fermented sweet potato pomace substituting corn,respectively,from 1 to 21 days of age,and 5%,8%,and 10%from 22 to 42 days and 43 to 70 days of age,respectively.The trial lasted for 70 days.The results showed that substituting corn with fermented sweet potato pomace did not significantly affect the average daily weight gain,average daily feed intake,and feed conversion ratio of the yellow-feathered broilers(P>0.05).Compared to the control group,the levels of serum high-density lipoprotein cholesterol(HDL-C),immunoglobulin A(IgA),immunoglobulin G(IgG),interleukin-2(IL-2),and interleukin-6(IL-6)in groupsⅠandⅡwere significantly increased(P<0.05).At 21 days of age,the villus height and crypt depth of the duodenum in groupⅠwere significantly reduced(P<0.05),while the crypt depth in the ileum was significantly increased(P<0.05),and the villus height to crypt depth ratio(V/C)in the ileum of groupsⅠandⅢwere significantly decreased(P<0.05).At 42 days of age,the villus height of the duodenum and jejunum and crypt depth of the jejunum in groupⅢwere significantly reduced(P<0.05),the V/C of the duodenum in groupⅠwas significantly increased(P<0.05),and the villus height of the ileum in groupsⅠandⅡwere significantly increased(P<0.05).At 70 days of age,the villus height and V/C of the duodenum in groupsⅠandⅡwere significantly increased(P<0.05),the crypt depth was significantly reduced(P<0.05),and the villus height and V/C of the jejunum in groupⅡwere significantly increased(P<0.05).The study indicates that adding fermented swe

关 键 词：发酵红薯渣 黄羽肉鸡 生长性能 血清生化指标 免疫指标 肠道形态 

分 类 号：S831[农业科学—畜牧学]