5Lg Buttle, Vo Crampton, Pd Williams. 2001 The effect of feed pigment type on flesh pigment deposition and colour in fanned Atlantic salmon, Salmo salar L. Aquaculture Research, 32 103-111 Aquaculture Research.
6No, H.K. &Storebakken, T. 1991a. Pigmentation of rainbow trout with astaxanthin and canthaxanthin in freshwater and seawater. Aquaculture, 101, 123 134.
7Torrissen, O. J. and Christiansen, R. (1995) Requirements for carotenoids in fish diets. J. Appl. Ichthyol., 11:225-230.
8Christiansen, R., Struksn.s, G., Estermann, R., Torrissen, O.J., 1995a. Assessment of flesh colour in Atlantic salmon, Salmo salar L. Aquacult. Res. 26, 311-321.
9Lg Buttle, Vo Crampton, Pd Williams.The effect of feed pigment type on flesh pigment deposition and colour in farmed Atlantic salmon, Salmo salar L[J].Aquacuhure Research,2001,32 : 103 - 111.
10Torrissen O J, Christiansen R. (1995) Requirements for carotenoids in fish diets[J].J Appl Ichthyol, 11 : 225 - 230.