Feed Security

Effects of Aflatoxins and Absorbents on Growth Performance and Immune Indices of Meat Ducks

  • XIE Qing ,
  • SUN Manji ,
  • CHANG Wenhuan ,
  • LIU Zhiyun ,
  • MA Jianshuang ,
  • LIU Guohua ,
  • CAI Huiyi ,
  • WANG Jinquan ,
  • LYU Chunsheng
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  • 1. College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China;
    2. Key Laboratory of Feed Biotechnology of Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China

Received date: 2014-08-20

  Online published: 2015-01-10

Abstract

This experiment was conducted to investigate the effects of aflatoxins and absorbents on growth performance and immune indices of meat ducks, and to evaluate the efficacy of montmorillonite (PCM) and yeast cell wall (PCY). A total of 360 one-day-old Cherry Valley male ducks were randomly divided into 4 groups with 6 replicates per group and 15 ducks per replicate. The four diets formulated included a basal diet (negative control group), a contaminated diet (positive control group) and two contaminated diets supplemented with 2 g/kg PCM or PCY. Of those, the contaminated diet was formulated by replacing common cottonseed meal with 8% naturally moldy one (aflatoxins content 1 337.21 μg/kg) on the equal nutrient level basis. The experiment lasted for 35 days. The results showed as follows: 1) compared with the negative control group, aflatoxins significantly decreased average daily gain (ADG), average daily feed intake (ADFI), percentage of breast muscle and percentage of lean meat at 35 days of age, the contents of serum protein, immunoglobulin G (IgG) and immunoglobulin M (IgM) at 14 and 35 days of age (P<0.05), but significantly increased the ratio of feed to gain and immunity organ index at 35 days of age (P<0.05). 2) Compared with the positive control group, the ADG, ADFI and the contents of serum protein, IgG and IgM in PCM and PCY groups were significantly increased (P<0.05), but the immunity organ index was significantly decreased (P<0.05). 3) Compared with the PCY group, the ADG and the contents of serum protein, IgG and IgM in PCM group were significantly increased (P<0.05), but the immunity organ index was significantly decreased (P<0.05). In conclusion, aflatoxins can decrease the growth performance and immune function of meat ducks, dietary adding absorbents can ameliorate the negative effect of aflatoxins, and the PCM absorbent get the better effect.

Cite this article

XIE Qing , SUN Manji , CHANG Wenhuan , LIU Zhiyun , MA Jianshuang , LIU Guohua , CAI Huiyi , WANG Jinquan , LYU Chunsheng . Effects of Aflatoxins and Absorbents on Growth Performance and Immune Indices of Meat Ducks[J]. Chinese Journal of Animal Nutrition, 2015 , 27(1) : 204 -211 . DOI: 10.3969/j.issn.1006-267x.2015.01.025

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