6Khan M S. Effect of population density on the growth, feed and protein conversion efficiency and biochemical composition of a tropical freshwater catfish, Mystus nemurus (Cuvier & Valenciennes) [ J]. Aquaculture Fish Manage, 1994, 25(7) : 753 - 760.
7Dabrowski K. Protein requirements of grass carp fry (Ctenopharyngodon idellaVul)[J]. Aquaculture. 1977,12:67- 73.
8Zeitoun I H, Ullrey D E, Magee W T, et al. Quantifying nutrient requirements of fish[J] .J Fish Res board Can , 1976,33:167- 172.
9Khan M S, Ang K J, Ambek M A, et. al. Optimum dietary protein requirements of a Malaysian freshwater catfish Mystus tiemurus [J].Aquaculture, 1993,112:227 - 235.
