Pond Construction
Before introducing young turtles, it's essential to properly prepare the pond. For new soft-shell turtle ponds, 100-150 kilograms of lime per acre should be applied for disinfection. In addition to cleaning old ponds, it’s important to inspect and repair any damaged escape prevention structures. During summer, large-leaf plants can be planted along the pond edges or shade structures can be installed to provide cooling for the turtles.
Temperature Control
When moving turtle fry from outdoor greenhouses to open ponds, maintaining stable water temperature is crucial. If there's a significant temperature difference or if weather conditions are unstable, it's not advisable to move them immediately. Wait until the temperature stabilizes for a few days, ensuring the difference doesn’t exceed 2°C before stocking.
Seedling Selection
Choose healthy, disease-free, and pest-free turtles that weigh at least 50 grams and measure 7 cm in length. It’s also important to select individuals of similar size to ensure uniform growth. Soft-shell turtles should be sorted into different groups based on size—those that are weaker may need to be raised in a greenhouse for a while to regain strength before being transferred to the main pond.
Stocking Density
The number of young turtles per mu should be determined based on pond conditions, water supply, feed availability, feeding practices, and target market size. A typical stocking density ranges between 7,000 to 9,000 per mu. Before placing them in the pond, soak the turtles in a solution containing 100-200 ppm of vitamin B12 or vitamin C for 30 minutes, then dip them in water with 10-15 million units of penicillin per kilogram for two hours.
Fish Species Integration
In each mu of the turtle pond, you can introduce 200-300 white breams (about 50-100 grams each) and 50 carp (around 100 grams each). This polyculture system helps improve water quality, increase resource utilization, and allows for double harvests. However, during this period, it's important to maintain good feeding practices and keep the water clean and fresh.
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