Effects of tank colour on growth and survival of t

Authors: Chang’an Wang Qiyou Xu Jinnan Li Liansheng Wang Zhigang Zhao Xue Du Liang Luo Jiasheng Yin

Publish Date: 2016/07/26

Volume: 25, Issue: 1, Pages: 437-446

PDF Link

Abstract

This study was conducted to evaluate the effect of tank colour on growth and survival of taimen Hucho taimen larvae Larvae initial weight 011 ± 001 g 21 days after hatching were cultured in the water flowthrough system Fifteen aquaria 200 L per aquarium were randomly allocated into triplicate groups of 500 larvae The outsides of the tanks were covered in red blue yellow white or black sheeting Larvae were fed eight times a day by hand to apparent satiation The experiment was conducted for 56 days The results showed that the specific growth rate was significantly affected by tank colour which was higher in the yellow tank than that of the tank black or red P  005 The tank colour did not significantly affect survival condition factor and feed conversion ratio among all the treatments P  005 The highest feed intake was observed in fish reared in the yellow tank followed by that of the white blue or black tank and the lowest was in fish in the red tank In conclusion the lightcoloured tank yellow or white was optimum for rearing taimen larvae based on the growth performanceThis study was supported by the National Key Technology Research and Development Program in the 12th Five year Plan of China 2012BAD25B10 the Natural Science Funds of Heilongjiang QC2015041 and the Fundamental Research Funds for the Central Institutes of HRFRI HSY201512

Keywords: