1. 16 Granule materials in oocytes were both endogenous and exogenous and the exogenic nutrients were mainly derived from digestive gland.

2. 13 Granule materials in oocytes were both endogenous and exogenous and the exogenic nutrients were mainly derived from digestive gland.

3. The Cephalothorax is a region where many vital organs of the crayfish are contained such as the heart, the reproductive organs, the digestive gland, the stomach, the esophagus, the

4. Thecontents of polyunsaturated fatty acids (PUFA), EPA and DHA compose 26% to21% of the total lipid. EPA and DHA contents in soft body, digestive gland andgonad are insignificantly different.

5. 15 Thecontents of polyunsaturated fatty acids (PUFA), EPA and DHA compose 26% to21% of the total lipid. EPA and DHA contents in soft body, digestive gland andgonad are insignificantly different.