6BURRELLS C, WILLIMS P D, SOUTHGATE P J, et al. Dietary nucleotides: a novel supplement in fish feeds-2. Effects on vaccination, saltwater transfer, growth ratios and physiology of Atlantic salmon (Salmo salar L) [J]. Aquaculture, 2001, 199: 171 - 184.
7RUMSEY G L, WINFREE R A, HUGHES S G. Nutritional value of dietary nucleic acids and purine bases to rainbow trout ( Oncorhynchus mykiss ) [J]. Aquaculture, 1992, 108:97-110.
8BURRELLS C, WILLIAMS P D, FOMO P F. Diet ary nucleotides: a novel supplement in fish feeds: 1. Effects on resistance to disease in salmonids [J]. Aquaculture, 2001, 199 : 159 - 169.
9MARJA M, ANTTI S. Changes in plasma lysozyme and blood leucocyte levels of hatchery-reared Atlantic salmon and sea trout ( Salmo trutta L. ) during parrsmolt transformation [J]. Aquaculture, 1992, 106 : 75 -78.