Effects of Nutritional Compound Additives on Growth Performance, Antioxidant Capacity, Liver Function and Toxin Residues of Growing-Finishing Pigs Fed Diets Contaminated with Aflatoxin B1

  • PU Junning ,
  • YUAN Qinghui ,
  • CHEN Daiwen ,
  • TIAN Gang ,
  • HE Jun ,
  • ZHENG Ping ,
  • MAO Xiangbing ,
  • YU Jie ,
  • HUANG Zhiqing ,
  • LUO Junqiu ,
  • LUO Yuheng ,
  • YU Bing
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  • Key laboratory of Animal Disease-Resistant Nutrition, Sichuan Province, Key laboratory of Animal Disease-Resistant Nutrition and Feed, Ministry of Agriculture and Rural Affairs, Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Ya'an 625014, China

Received date: 2019-03-16

  Online published: 2019-10-17

Abstract

This experiment was conducted to investigate the effects of nutritional compound additives on growth performance, antioxidant capacity, liver function and toxin residues of growing-finishing pigs fed diets contaminated with aflatoxin B1 (AFB1). Twenty-eight healthy Duroc×Landrace×Yorkshire growing-finishing pigs with average body weight of (38.06±0.27) kg were randomly assigned to 4 groups with 7 replicates per group and 1 pig per replicate according to similar body weight. The 4 group were control group (basal diet), AFB1 group (280 μg/kg AFB1), compound additive group Ⅰ (AFB1 diet+0.3% antioxidant compound additive) and compound additive group Ⅱ (AFB1 diet+0.3% intestinal health compound additive), respectively. The experiment lasted for 102 days. The results showed as follows:compared with control group, average daily gain (ADG) at 51 to 75 kg was significantly decreased (P<0.05), plasma total superoxide dismutase (T-SOD) activity was significantly decreased and plasma malondialdehyde (MDA) content was significantly increased at 135 kg (P<0.05), plasma glutamic oxaloacetic transaminase (GOT) activity was significantly increased at 100 kg (P<0.05), and liver index, AFB1 and aflatoxin M1 (AFM1) contents in liver and kidney and AFB1 content in longissimus dorsi of growing-finishing pigs in AFB1 group were significantly increased (P<0.05). Compared with AFB1 group, ADG at 51 to 75 kg was significantly increased (P<0.05), plasma T-SOD activity was significantly increased at 135 kg (P<0.05), plasma MDA content and GOT activity were significantly decreased at 100 kg (P<0.05), and AFM1 content in kidney and AFB1 content in longissimus dorsi of growing-finishing pigs in compound additive group Ⅰ were significantly decreased (P<0.05). Compared with AFB1 group, plasma T-SOD activity was significantly increased at 135 kg (P<0.05), plasma MDA content was significantly decreased at 100 and 135 kg (P<0.05), and plasma GOT activity at 100 kg of growing-finishing pigs in compound additive group Ⅱ was significantly decreased (P<0.05). In conclusion, dietary 280 μg/kg AFB1 can reduce growth performance and body antioxidant capacity, increase tissue AFB1 residue, and lead to liver function of growing-finishing pigs damaged. Adding 0.3% antioxidant compound additive can significantly reduce AFB1 residue in tissue, improve body antioxidant ability, and effectively relieve the adverse effects of AFB1 on growth performance and liver function of growing-finishing pigs. Adding 0.3% intestinal health compound additive can significantly improve body antioxidant capacity and alleviate AFB1 damage to liver of growing-finishing pigs.

Cite this article

PU Junning , YUAN Qinghui , CHEN Daiwen , TIAN Gang , HE Jun , ZHENG Ping , MAO Xiangbing , YU Jie , HUANG Zhiqing , LUO Junqiu , LUO Yuheng , YU Bing . Effects of Nutritional Compound Additives on Growth Performance, Antioxidant Capacity, Liver Function and Toxin Residues of Growing-Finishing Pigs Fed Diets Contaminated with Aflatoxin B1[J]. Chinese Journal of Animal Nutrition, 2019 , 31(10) : 4691 -4700 . DOI: 10.3969/j.issn.1006-267x.2019.10.034

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