(1) determine the toxic effect of TCS on the biomass, shell diameter growth, and total food intake of A. fulica; (2) determine the toxic effect of TCS on the activity of SOD, CAT, and POD, and the content of MDA
(1) determine the toxic effect of TCS on the biomass, shell diameter growth, and total food intake of A. fulica; (2)determine the toxic effect of TCS on the activity of SOD, CAT, and POD, and the content of MDA