The ideal temperature for artificial breeding is around 30°C. If the temperature falls below 10°C, the animals will stop eating and drinking, cease growing, and enter hibernation. This makes it essential to implement effective heating strategies during the winter months.
First, using hot water or waste heat from thermal power plants is an efficient method. Hot spring water, rich in minerals like sodium, potassium, and bicarbonate, promotes healthy growth in the species being bred. By adjusting the water temperature in the breeding pond to 30°C, you can prevent hibernation and significantly increase weight gain. In areas without hot springs, waste heat from thermal power plants can also be utilized for this purpose.
Second, solar heating systems can be a great alternative. Closed or circulating solar water heaters, along with air-conditioning units, can help maintain a stable water temperature of about 30°C throughout the winter. With a breeding density of 20 to 25 juveniles per square meter, after 6 to 7 months, each individual can reach approximately 130 grams. Then, by reducing the density to 6 per square meter, they can grow further over 10 to 15 months, reaching more than 0.5 kg, with some even surpassing 1 kg.
Third, electric, oil, or gas heating methods can also be used. A double-layer plastic greenhouse or steam heating system can maintain the pond temperature at around 30°C all winter long. If the stocking density is about 13 eggs per square meter, after one year of proper feeding, each can reach around 0.5 kg, meeting market specifications.
Among these three methods, the first—using hot water or thermal plant waste heat—is often the most cost-effective and practical option. It’s easy to manage, requires minimal effort, and delivers excellent results. If available, this method should be prioritized for optimal breeding outcomes.
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