识别养殖对象的雌雄使之合理搭配,是人工育苗中的关键问题之一。那么,怎样鉴别特种水产养殖品种的雌雄?现选择养殖数量较多的几种介绍如下: 一、中华绒螫蟹1.雄性腹部呈三角形,俗称尖脐,紧合于腹甲沟中,第一节有一横行突起,将该节分成前后两部 It is one of the key problems in artificial seedling breeding to identify the male and female of breeding objects reasonably. So, how to identify the male and female aquaculture species? Now choose the number of aquaculture more introduced as follows: First, the Chinese goose hairy crab 1. Male abdomen was triangular, commonly known as the sharp navel, tight in the abdominal gully, the first The festival has a ramp, the section is divided into two before and after