Crab paste: the parasympathetic gland and hepatopancreas of male crabs, greenish-gray in color and translucent jelly-like, the crab paste of male crabs is the most delicious after October every year. Crab yolk: the ovaries and digestive glands of female crabs, orange or yellow in color, the yolk of female crabs that have successfully mated, there are still eggs that have not been discharged.

1, crab paste

Crab paste exists in male crabs, male crab parasympathetic gland and hepatopancreas, every year in October the growth of mature male crabs, the parasympathetic gland is exceptionally well developed, occupies the entire reproductive system, this time the crab paste is the most fertile, and the male crabs in addition to the crab paste in the October and after the male crabs, the crab paste is the most fertile, and the crab paste is the most fertile, and the crab paste is the most fertile, and the crab paste is the most fertile. In addition to the parasympathetic glands and hepatopancreas, the crab paste also contains fat and is greenish-gray in color and translucent jelly-like.

2, crab roe

The crab roe exists in female crabs, which is the ovary and digestive gland of female crabs. In August and September every year, female crabs enter the breeding period, when the ovary develops and matures, and occupies most of the space of the cephalothoracic armour, resulting in the belly button bulging, and the crab roe appears orange and yellow, the orange one is the ovary, and the yellow one is the digestive gland.

3, species introduction

The crab is a crustacean, the whole body has a hard shell, rely on the gills to breathe, mainly living in the deep sea, offshore and freshwater, common varieties of pike crabs, hairy crabs, blue crabs, etc., and the crab has a pair of chelicerae and four pairs of stepping feet, the center of the forehead has two pairs of antennae, the abdomen is degraded, presenting a flattened shape.

4, breeding methods

In the process of breeding crabs, it is necessary to patrol the pond 1-2 times a day to check the water quality and the growth of crabs, so as to avoid the discovery of diseased crabs and dead crabs in a timely manner, which affects the growth of other crabs, and it is necessary to change the water every 2-3 days, to ensure that the water is full of oxygen content, to avoid the lack of oxygen and asphyxiation of the crabs. The water should be changed every 2-3 days to ensure sufficient oxygen in the water to avoid asphyxiation of crabs.