7OWEN C A, Jr. Biochemical aspects of copper[ M ]. Park Ridge, New Jersey, USA:Noyes Publications, 1982:41-44.
8TAN B P,MAI K S. Zinc methionine and zinc sulfate as sources of dietary zinc for juvenile abalone Haliotis discus hannai Ino [ J ]. Aquaculture,2001, 192:67-84.
9PARIPATANANONT T, LOVELL R T. Chelated zinc reduces the dietary zinc requirement of channel catfish [ J]. Aquaculture, 1995, 133:73 - 82.
10FORBES R M, WEINGARTNER K E, PARKER H M, et al. Bioavailability to rats of zinc, magnesium and calcium in casein - ,egg- and soy protein - containing diets[J]. J Nutr, 1979, 109 : 1062