饲料研究2024，Vol.47Issue(17)：35-40,6.DOI:10.13557/j.cnki.issn1002-2813.2024.17.007
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
摘要
Abstract
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.Groups Ⅰ,Ⅱ,and Ⅲwere 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 groups Ⅰ and Ⅱ were significantly increased(P＜0.05).At 21 days of age,the villus height and crypt depth of the duodenum in group Ⅰ were 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 groups Ⅰ and Ⅲ were 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 group Ⅲ were significantly reduced(P＜0.05),the V/C of the duodenum in group Ⅰ was significantly increased(P＜0.05),and the villus height of the ileum in groups Ⅰ and Ⅱ were significantly increased(P＜0.05).At 70 days of age,the villus height and V/C of the duodenum in groups Ⅰ and Ⅱ were 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 group Ⅱ were significantly increased(P＜0.05).The study indicates that adding fermented sweet potato pomace to the diet as a substitute for corn can improve the serum immune indicators and intestinal tissue morphology of yellow-feathered broilers,and the optimal supplemental level is 5％at 1 to 21 days of age and 8％at 22 to 70 days of age.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Key words
fermented sweet potato pomace/yellow-feathered broilers/growth performance/serum biochemical indexes/immune indexes/intestinal morphology分类
农业科技引用本文复制引用
谢超,张静梦,宾石玉..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[J].饲料研究,2024,47(17):35-40,6.基金项目
广西科技计划项目(项目编号:桂科AB19259012、桂科AB23026022) （项目编号:桂科AB19259012、桂科AB23026022）
