Original Article

Dietary phosphorus prevents oxidative damage and increases antioxidant enzyme activities in intestine and hepatopancreas of juvenile Jian carp

  1. L. Feng1,2,3,
  2. N.-B. Xie1,2,3,
  3. Y. Liu1,2,
  4. S.-Y. Kuang1,4,
  5. L. Tang1,4,
  6. J. Jiang1,2,
  7. K. Hu1,3,
  8. W.-D. Jiang1,3,
  9. S.-H. Li1,2,
  10. X.-Q. Zhou1,2,3,*

Article first published online: 26 JUN 2012

DOI: 10.1111/j.1365-2095.2012.00955.x

Issue

Aquaculture Nutrition

Aquaculture Nutrition

Volume 19, Issue 3, pages 250–257, June 2013

Additional Information

How to Cite

Feng, L., Xie, N.-B., Liu, Y., Kuang, S.-Y., Tang, L., Jiang, J., Hu, K., Jiang, W.-D., Li, S.-H. and Zhou, X.-Q. (2013), Dietary phosphorus prevents oxidative damage and increases antioxidant enzyme activities in intestine and hepatopancreas of juvenile Jian carp. Aquaculture Nutrition, 19: 250–257. doi: 10.1111/j.1365-2095.2012.00955.x

Author Information

  1. 1

    Animal Nutrition Institute, Sichuan Agricultural University, Sichuan, China

  2. 2

    Fish Nutrition and Safety in Production Sichuan University Key Laboratory, Sichuan Agricultural University, Sichuan, China

  3. 3

    Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Sichuan, China

  4. 4

    Animal Nutrition Institute, Sichuan Academy of Animal Science, Chengdu, China

* Correspondence: Xiao-Qiu Zhou, Animal Nutrition Institute, Sichuan Agricultural University, Ya'an 625014, China. E-mail: xqzhouqq@tom.com; zhouxq@sicau.edu.cn

Publication History

  1. Issue published online: 29 APR 2013
  2. Article first published online: 26 JUN 2012
  3. Manuscript Accepted: 12 FEB 2012
  4. Manuscript Revised: 12 JAN 2012
  5. Manuscript Received: 5 AUG 2011

Funded by

  • National Department Public Benefit Research Foundation (Agriculture) of China. Grant Number: 201003020
  • New Century Excellent Talentsin University. Grant Number: NCET-08-0905

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Keywords:

  • antioxidant capacity;
  • hepatopancreas;
  • intestine;
  • Jian carp (Cyprinus carpio var. Jian);
  • phosphorus

Abstract

This study was conducted to investigate the effect of dietary phosphorus on the intestine and hepatopancreas antioxidant capacity of juvenile Jian carp (Cyprinus carpio var. Jian). Jian carp, with an average initial weight of 7.17 ± 0.01 g, were fed with diets containing graded concentrations of available phosphorus, namely 1.7 (control), 3.6, 5.5, 7.3, 9.2 and 11.0 g kg−1 diet for 9 weeks. Results showed that, in intestine and hepatopancreas, content of malondialdehyde (MDA), protein carbonyl (PC) and glutathione (GSH), capacity of anti-superoxide anion (ASA) and anti-hydroxyl radical (AHR), and glutathione reductase (GR), catalase (CAT), glutathione S-transferase (GST), superoxide dismutase (SOD) and glutathione peroxidase (GPx) activities were significantly affected by dietary phosphorus levels (P < 0.05). Regression analysis showed that significant quadratic responses occurred in MDA content and ASA, GST, GPx and AHR activities in intestine, GSH content and CAT and SOD activities in hepatopancreas (P < 0.05). These results indicate that optimal level of dietary phosphorus prevented oxidative damage and increased antioxidant enzyme activities in the intestine and hepatopancreas of juvenile Jian carp. The phosphorus requirement estimated from MDA using quadratic regression analysis was 5.7 g kg−1 diet.

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