霉变饲料中添加有机改性蒙脱石对蛋雏鸡生长性能和免疫功能的影响

doi:10.16431/j.cnki.1671-7236.2022.06.014

摘要/Abstract

摘要： 【目的】探讨在霉变饲料中添加葡甘露聚糖改性蒙脱石和壳聚糖改性蒙脱石对蛋雏鸡生长性能和免疫功能的影响。【方法】将252只8日龄雌性蛋雏鸡随机分为7组，每组6个重复，每个重复6只鸡。第1组饲喂基础饲粮，第2组饲喂霉变饲粮，第3~7组分别饲喂添加0.15%葡甘露聚糖改性蒙脱石、0.15%壳聚糖改性蒙脱石、0.15%高纯纳米蒙脱石、0.15%葡甘露聚糖和0.15%壳聚糖的霉变饲粮，试验期42 d。试验结束后检测各组蛋鸡的生长性能、免疫器官脏器指数、血浆中免疫球蛋白和免疫因子以及脾脏中免疫因子的含量。【结果】与饲喂基础饲粮组相比，仅饲喂霉变饲粮的蛋雏鸡的平均日增重、血浆和脾脏中白细胞介素-2（IL-2）、白细胞介素-4（IL-4）、白细胞介素-6（IL-6）、干扰素-γ（IFN-γ）含量以及血浆中免疫球蛋白A （IgA）、免疫球蛋白G （IgG）、免疫球蛋白M （IgM）含量均显著降低（P<0.05）；与饲喂霉变饲粮的蛋雏鸡相比，在霉变饲粮中添加葡甘露聚糖改性蒙脱石和壳聚糖改性蒙脱石均显著提高了蛋雏鸡的平均日增重，降低了料重比（F/G）和免疫器官脏器指数（P<0.05）；显著提升了蛋雏鸡血浆和脾脏中IL-2、IL-4、IL-6、IFN-γ以及血浆中IgA、IgG、IgM含量（P<0.05）。【结论】霉变饲料能导致蛋雏鸡免疫功能下降，而在霉变饲料中添加葡甘露聚糖改性蒙脱石或壳聚糖改性蒙脱石均能缓解霉菌毒素对家禽的毒性作用，提高蛋雏鸡生长性能和增强免疫功能。

关键词: 蒙脱石; 蛋雏鸡; 生长性能; 免疫功能

Abstract: 【Objective】 The aim of this study was to study the effects of glucomannan-modified montmorillonite and chitosan-modified montmorillonite on the growth performance and immune function of chicks.【Method】 252 8-day-old laying chicks were randomly divided into 7 groups with 6 replicates in each group and 6 chicks in each replicate.The chicks in group 1 were fed with basal feed, the chicks in group 2 were fed with mildewed feed, and the chicks in groups 3 to 7 were fed with mildewed feed supplemented with 0.15% glucomannan-modified montmorillonite, 0.15% chitosan-modified montmorillonite, 0.15% high purity nano montmorillonite, 0.15% glucomannan and 0.15% chitosan, respectively.The test period was 42 days.At the end of the experiment, the growth performance, the immune organ index, the plasma immunoglobulins and immune factors, the spleen immune factors of test chicks in each group were measured.【Result】 Compared with chicks fed with basal diet, the average daily gain, contents of IL-2, IL-4, IL-6 and IFN-γ in serum and spleen and contents of IgA, IgG and IgM of chicks fed with mildewed feed only were significantly decreased (P<0.05).Compared with chicks fed with mildewed feed only, the average daily gain of chicks fed with mildewed feed supplemented with 0.15% glucomannan-modified montmorillonite and 0.15% chitosan-modified montmorillonite were significantly increased, and the F/G and immune organ index were significantly decreased (P<0.05).The contents of IL-2, IL-4, IL-6 and IFN-γ in serum and spleen and the contents of IgA, IgG and IgM in serum of chicks were significantly increased (P<0.05).【Conclusion】 The immune function of chicks were decreased due to mildewed feed, and the two organic modified montmorillonite could alleviate the toxic effect of mycotoxins on chicks and improve the growth performance and immune function of chicks.

Key words: montmorillonite; chicks; growth performance; immune function

中图分类号:

S816.7

岳甫圆, 朱连勤, 陈甫, 张贝贝, 朱风华. 霉变饲料中添加有机改性蒙脱石对蛋雏鸡生长性能和免疫功能的影响[J]. 中国畜牧兽医, 2022, 49(6): 2137-2144.

YUE Fuyuan, ZHU Lianqin, CHEN Fu, ZHANG Beibei, ZHU Fenghua. Effects of Organic Organically Modified Montmorillonite Added to Mildew Feed on Growth Performance and Immune Function in Chicks[J]. China Animal Husbandry and Veterinary Medicine, 2022, 49(6): 2137-2144.

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