1. Tail: The tail of the female turtle is short and thick and cannot stick out of the skirt, while the tail of the male turtle is slender and can stick out of the skirt. 2. Carapace: The carapace of soft-shelled turtles is oval, but the carapace of female soft-shelled turtles is relatively round, while the carapace of male soft-shelled turtles is relatively long. 3. Plastron: The recess at the rear end of the plastron of female turtles is shallower, while that of male turtles is deeper. 4. Distance between hind limbs: The distance between hind limbs of female soft-shell turtles is relatively wide, while that of male soft-shell turtles is relatively narrow. 5. Skirt: The skirt at the rear of the female turtle is wider, while that of the male is narrower.

1. How to distinguish male and female turtles

1. Tail

The tail of the female turtle is relatively short and thick and cannot naturally extend out of the skirt, while the tail of the male turtle is The tail is relatively slender and can naturally extend out of the skirt.

2. Carapace

The carapace of the female soft-shell turtle is in the shape of a rounded oval with a flat and concave middle part, while the carapace of the male soft-shelled turtle is in the shape of a longer oval with a concave middle part. The part protrudes slightly outward.

3. Plastron

The recess at the rear end of the plastron of the female turtle is shallower, while the recess at the rear end of the plastron of the male turtle is deeper.

4. Hind limb distance

The distance between the hind limbs of female turtles is relatively wide, while the distance between the hind limbs of male turtles is relatively narrow.

5. Body shape

Female turtles are thicker, while male turtles are thinner.

6. Skirt

The skirt at the rear of the female turtle is wider, while the skirt at the rear of the male is narrower.

2. Soft-shell turtle breeding methods

1. Breeding pond

(1) Juvenile soft-shell turtle pond: Juvenile soft-shell turtle pond is usually built in Indoors, the area is about 25-30 square meters, the bottom is covered with 5-10cm thick sand, and the water level depth is 0.5m.

(2) Young turtle pond: The area is about 150 square meters. The bottom is evenly spread with sand. The water level depth is about 0.8m. At the same time, anti-escape walls are built around the breeding pond with a height of about 30cm. .

(3) Turtle Pond: The area is about 1-2 acres, the water level depth is about 1.5-2m, an anti-escape wall is built around it, and a small island is set up in the center of the pond for soft-shell turtles to bask on their backs and inhabit. .

(4) Turtle pond: The area is about 1 mu, the water level depth is about 1.5m, and an anti-escape wall is built around it (50-80cm higher than the pond ridge). The pond ridge on the sunny side Set up spawning grounds.

2. Stocking

(1) If the turtles are cultured from fry to adult, an average of 15 turtles per square meter will be stocked per square meter in the early stage. 30 pieces.

(2) If it is from soft-shell turtle fry to soft-shell turtle fingerlings, an average of 25 turtles per square meter should be stocked, and 50 turtles per square meter should be stocked in the early stage.

(3) If the soft-shell turtle is cultured from seed to adult, the intensive breeding density in mud ponds is 1 turtle/square meter, and the intensive breeding density in cement ponds is 5 turtles/square meter.

(4) Before stocking, use 20mg/L potassium permanganate solution to soak for about 15-20 minutes.

3. Feeding

(1) Feed mainly includes fresh small fish, shrimps, snail meat, earthworms, poultry offal and other animals Sexual feed as well as fresh pumpkin, apple, watermelon rind, vegetables, beans, cereals and other plant feed.

(2) If it is a juvenile turtle, the feed protein content is required to be around 50%. If it is a young or adult turtle, the protein content of the feed is required to be about 45%.

(3) If it is a soft-shell turtle of 3-50g, the daily feeding amount is about 5% of the soft-shell turtle’s body weight. If it is a soft-shell turtle of 50-150g, the daily feeding amount is about 3.5-4% of the soft-shell turtle's body weight. If it is a soft-shell turtle weighing 150-300g, the daily feeding amount is about 2.5% of the soft-shell turtle’s body weight. If it is a soft-shell turtle weighing more than 300g, the daily feeding amount should be less than 2% of the soft-shell turtle's body weight. Specifically, it is advisable to eat the food 1-1.5 hours after feeding.

(4) Under normal circumstances, feed once every day at 9 am and 3 pm. If it is the hot season, feed twice a day, at 7-8 a.m. and 4-5 p.m. If it is a season with lower temperatures, feed once a day, and the feeding time is around 10 a.m.

4. Management

(1) The color of the water body should be emerald green, oil green, dark brown, or dark brown, and the water transparency should be controlled at 20-25cm about.

(2) The appropriate water temperature is 28-30℃.

(3) The dissolved oxygen content of the water body is maintained at about 4-6 mg/L, and the water pH is controlled between 7.2-8.5.

(4) The safe ammonia nitrogen content in water is 0.5-1mg/L, and the safe nitrite content is 0.05-0.1mg/L.

(5) Change the water regularly, and the amount of water changed each time should not exceed one-third.

(6) Regularly use 2-3ppm bleaching powder or 15-40ppm quicklime for disinfection.