Objective To explore the effect of cadmium on the immune function and reproductive function in red crucian carp. Methods Twenty-eight Carassius auratus red variety were randomly and averagely divided into 4 groups at different doses of cadmium(0.0 mg/L,0.2 mg/L,0.8 mg/L,and 1.6 mg/L).The blood was collected for taking count of the WBC.The spleen and reproductive system were anatomized for counting the organ coefficients.The content of cadmium in the reproductive system was detected by graphite furnace atomic absorption spectrometry. Results C...