Histology of Ovary Development in Macrobrachium asperulum

Using histological sections, this paper studied the histology of oogenesis and ovarian development in M.asperulum. According to the size and morphology of cells, nuclei and nucleoli and the vitelline accumulation, oogenesis may be divided into four phases: the oogonium phase, the oocyte phase during yolk synthesis which can be subdivided into three stages:the premature stage and the mature stage. Ovarian development in M.asperulum follows a definite process. According to the size and color of the ovary as well as the proportion in the ovary of every kind of female germ cell, ovarian development can be divided into seven stages. The author puts forward rational suggestions on techniques for the artificial breeding of M.asperulum.