The effects of different levels of vitamins C and E on the growth indices in rainbow trout (Oncorhynchus mykiss)

The effects of different levels of vitamins C and E on the growth indices in rainbow trout (Oncorhynchus mykiss)

Authors

  • Arghavan Myar Department of Fisheries, Science and Research Branch, Islamic Azad University, Iran, Iran, Islamic Republic of
  • Abbas Matinfar Iranian Fisheries Research Organization, Tehran, Iran, Iran, Islamic Republic of
  • Mahdi Shamsaie Department of Fisheries, Science and Research Branch, Islamic Azad University, Iran, Iran, Islamic Republic of
  • Mahdi Soltani Department of Aquatic Animals Health, Faculty of Veterinary Medicine, University of Tehran, Iran, Iran, Islamic Republic of
  • Laleh Roomiani Department of Fisheries, Abadan Branch, Islamic Azad University, Iran, Iran, Islamic Republic of
  • Maryam Jafarpour Department of Fisheries, Science and Research Branch, Islamic Azad University, Iran, Iran, Islamic Republic of

Keywords:

Oncorhynchus mykiss, Vitamins C and E, Growth Indexes

Abstract

This study was conducted to assay the effects of different levels of dietary vitamins C and E on growth indices and survival of rainbow trout (Oncorhynchus mykiss) in pond culture of Marzan abad (Kelardasht-Mazandaran Province) from December 2011 to February 2011. Seven diets were supplemented. 300 fish with the average weight of 17 g were introduced to ponds for 60 days. The results showed that the highest and the lowest weight gain were in fish fed with diet containing 50 mg/kg vitamin C and E and 0 mg/kg vitamin C and E, respectively. The highest and the lowest Feed Conversion Ratio (FCR) were measured in control and diet 50 mg/kg vitamin C and E. There is a significant different in their treatments (P<0.05). Also, the lowest and highest amount of Weight Gain (WG), Specific Growth Rate (SGR), Protein Efficiency Ratio (PER), Condition Factor (CF) was found in control and treatment 50 mg/kg vitamin C and E, respectively. In conclusion vitamin C and have an important role in enhancement of growth performance and feed efficiency of rainbow trout.

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Published

2013-08-11

Issue

Vol. 5 No. 3 (2013)

Section

Articles

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