Histological structure of hair root and limed skin was separately observed by optical microscope,scanning electron microscope and by tissue section method during different phases of enzymatic dehairing,which could be used to interpret mechanism of action by different depilatory techniques.

The tissue sections of testis and epididymis showed that there wasn t secondary spermatocytes or spermatids in cattle-yak testis,and sperm could t be observed in the epididymis.

In this paper,we provide a method of ant brain for embedding tissue section technique which is aimed at the firm exoskeleton.

Finally,experiments of bio-micro-dissection on liver tissue slice are carried out with the tool,and better microdissection result is obtained.

This paper describs the dissection measuring on Hezuo Swine s reproduction organ(ovary,oviduct,uterus,vagina and testicle) and the research on the tissue slices of Hezuo Swine s ovary and testicle.

The degree of the plumping of the cattle hide and the removal of the hair were evaluated during the li- ming process;the protein,suspending substance,sodium sulfide and effective calcium oxide contents in the liming liquor and the fat content in the limed hide were measured;also,the tissue slice of the limed hide was observed by optic microscope.

Through scanning on the frozen tissue slices, distribution information of molecules such as protein and peptides from a certain tissue were directly obtained in little time by profiling MS technology.