Mature male mice were used to study the possible effects of effluent contaminated river water on reproduction
using testicular histopathology. Freshly collected contaminated river water was supplied to the caged mice daily ad
libitum. The mice were serially euthanized and testicles obtained for histology. The testes showed vacuolation and
sloughing of seminiferous epithelium; this finding confirms that effluent contaminated river water contains levels of
toxins sufficient enough to cause reproductive problems.