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The full artificial propagation of *C. chekinensis* remains a challenge, and experts suggest that the most effective approach is through controlled artificial breeding. For farmers with suitable conditions, semi-artificial methods can also be applied. These techniques aim to enhance survival rates and improve the efficiency of breeding programs.
Artificial breeding typically begins between July and September. In ponds, low-lying fields, or shallow water grass lakes that have not been previously used for crayfish cultivation, 18 to 20 kilograms of selected broodstock are introduced per acre, maintaining a male-to-female ratio of 3:1. The water depth should be kept at over one meter when releasing the broodstock. Afterward, the water level is gradually lowered to maintain a depth of 0.4 to 0.6 meters. By late October, water is slowly added to ensure the water just covers the crayfish burrows. No feeding is required during autumn and winter, but aquatic plants should be added, and moderate fertilization is recommended to keep the water clear, ideally between 30 to 40 cm. Once a significant number of juveniles hatch, they can be collected using traps. During winter, the water depth should remain above 0.6 meters, and if the average daily temperature drops below 4°C, the depth should be increased to at least 1 meter. As spring approaches, around early March, when the water temperature rises above 10°C, the shrimp will begin to emerge from their burrows. At this point, careful management is essential—water levels should be adjusted to help warm the water, and feeding and harvesting can commence.
For semi-artificial propagation, rectangular clay ponds measuring 40 to 50 meters in length and 6 to 7 meters in width are ideal, with a slope ratio of 1:1.5. A 50- to 60-cm-high anti-flood net is installed around the pond, and a shade net is placed over the soil pool. The water depth should be maintained at about 1 meter. Broodstock is introduced at a rate of 180 to 200 kg per pond, equivalent to 400 to 450 kg per acre, with a male-to-female ratio of either 2:1 or 5:2. After release, water quality must be carefully managed, and microfluidic systems can be used if available. Feeding once daily with high-protein animal feed, along with the addition of water peanuts and water hyacinths, supports optimal growth. In mid to late August, males are caught using shrimp cages, and by September, females are captured as juveniles appear. Intensive feeding and batch hatching are then carried out to maximize yield.
Broodstock selection for crawfish usually occurs between June and September. It is important to collect them directly from cultivated ponds or natural waters rather than from the market. The sex ratio depends on the breeding method—semi-artificial reproduction prefers a 5:2 or 2:1 ratio, while artificial propagation typically uses a 3:1 ratio. Female broodstock should weigh over 30 grams, and males over 40 grams. The time spent outside the water should be minimized, ideally no more than two hours. Avoid adding ice to the broodstock, and never select them from the market, as this can affect their health and breeding success.