By screening in rotting straw,grass and trunk through solid culture preliminary and broth assay method,it obtained fungi,actinomycete and bacterial each two strain.Inoculation with each strain to cattle and sheep mature droppings,the CMC enzyme activity was measured after two days.The results showed that different strains behaved differently to the one mature;and it told the same trend for one strain to the different dung.It was found that CMC enzyme activity was strong on the condition of the fungi of P2-6...