Effect of Cadmium on Immune and Reproductive Function in Carassius auratus Red Variety

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 Cadmium in red crucian carp could lead to a significant increase in the spleen coefficient.The number of white corpuscle in the low-dose group was significantly higher than that in other groups(P0.05).The number of white blood cell in the middle-dose and high-dose groups was lower than that in the low-dose group,but no statistically significant difference was found between the control group and the middle-dose group or the high-dose group.It was indicated that cadmium could do harm to spleen.The cadmium could be enriched in reproductive system,which indicated that cadmium might bring about injury in the reproductive system of red crucian carp. Conclusions Cadmium could possess immunotoxicity and reproductive toxicity on Carassius auratus red variety.