Freshwater lobster, the scientific name of the original Krill shrimp, also known as red marsh prawn. General male body length is about 5 cm, weight 50-70 grams; female body length is about 10 cm, weight 50 grams up and down. The lobster meat rate is about 20%, protein content is 16%-20%, dry shrimp protein content is as high as 50%. The lobster is very strong in vitality and has strict requirements on water quality. It is suitable for aquaculture in lakes, ponds, wetlands, rivers, aqueducts, paddy fields, and marshland. It even survives in waters that are difficult for some fish to survive. Temperatures above 40 degrees Celsius and temperatures below -15 degrees Celsius can be cultivated and naturally overwintered in most parts of China. At the same time, lobsters are highly fertile, and females spawn every year from mid-April to late July, producing hundreds of thousands of eggs. Fertilized eggs develop rapidly and have a high hatching rate. In particular, the lobster grows fast. After the hatching of the larvae, the larvae can grow into prawn at a suitable temperature (20-32°C) and adequate feed, after feeding for 60-90 days. And strong disease resistance, fewer diseases, high survival rate. 1. Artificial breeding pond Artificial breeding pond area of ​​lobster is suitable for 2-3 mu, the water depth is 0.5-1 meters, there must be more than 1.5 meters around the pool, and anti-escape facilities should be built on the pool, and the pool should be installed well. Drainage pipe. 2. The choice of broodstock leaves lobster dioecious, and general maturation takes 9-12 months. Male and female lobsters have obvious features in appearance and are easy to identify. First of all, to reach sexually mature lobsters, male individuals are significantly larger than females. Second, males are large in size and have a bright, red, soft system on both sides of the feet. Females have relatively small lameness and most of the females do not have red soft palate on the lameness, even if they have a slight color. Third, the gonads of the male open at the base of the fifth pair of feet, and the gonads of the female are The opening is in the third pair of step foot bases; fourth, the sexually mature females have enlarged abdomens and the males are relatively narrow in the abdomen. Election of broodstock is generally from September to October in the previous year or from March to March in the current year. When choosing to stay, individuals with a age of 10 months or older, a body weight of 30-50 grams, a body shape standard, a strong physique, complete appendages, no injury, and a strong life force should be selected. The ratio of male to female is 2:1. The size of the broodstock that is selected for stay in the previous year may be smaller, and the size of the broodstock chosen for the current year will be larger. (Anhui High Efficiency Agricultural Technology Research Institute Zhang Xiangzhao Zhu Juan Hefei 230001)
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