澳大利亚亚比虾排泄器官组织学研究

利用石蜡切片技术对澳大利亚亚比虾排泄器官－触角腺和膀胱进行了组织学观察研究。结果表明,亚比虾触角腺可分为端囊,迷路和肾管３个部分。端囊部分细胞呈柱状,细胞核位于基底部,细胞游离端向端囊腔呈球状突出。迷路部分细胞呈柱状或锥体状,细胞核位于中部或基部,胞质丰富且多数细胞的游离面形成泡状突起。     

Electrical stimulation of spermatophore extrusion in the freshwater yabby (Cherax destructor)

A technique for collecting spermatophores from male yabbies (Cherax destructor) is described. This technique consists of applying an electrical stimulus of between 5 and 10 mA and 40–50 Hz around the coxa of the fifth walking leg, and was found to have a success rate of 76% in 100 males tested. Furthermore, this approach enabled the collection of spermatophores from intersex individuals, indicating that intersex animals have the ability to function as males.

Using this technique, it was shown that spermatophore development is correlated with water temperature and that it is possible to elicit spermatophores from males in the non-reproductive season simply by raising water temperatures. The ability to non-invasively collect spermatophores from yabbies will facilitate the development of artificial fertilization techniques in this species.