Effects of pig farm wastewater on the micro-nucleus and abnormal nucleus in erythrocytes of Misgurnus Anguillicaudatus

The micronucleus test with the erythrocytes of the Misgurnus Anguillicaudatus was adopted to study the mutagenic activity of wastewater from pig farms.The results showed that the micro-and anomalous nuclear rates significantly increased after 2 days of treatment,peaked on the 5th day,and declined a afterward.In another experiment where varying concentrations of the wastewater were used,the rates increased with a significant dosage-dependency.The differences between the tests and the control were very significant,indicating that pig farm wastewater was mutagenic to a certain degree.