Three benefits of mixed culture of fish and soft-shelled turtle in pond

Turtle culture is one of the high-quality and efficient special farming industries in China. Since its development in the late 1970s, the annual output has reached more than 100,000 tons, ranking first in the world. Although the current market price of commodity soft-shelled turtle is low, but the market sales volume is still not reduced. However, in order to achieve sustainable and healthy development in the future, it is necessary to find a new culture model and the best feasible way.

According to the author's investigation and culture practice for many years, mixed culture using existing culture ponds is the best way to develop healthy soft-shelled turtle culture in China in the future. It is based on three grounds:

One good: the pond environment is good and convenient to manage

Because the pond area is large, the water is deep, and under the wild natural climate condition, the culture environment is better than the factory greenhouse and the intensive small cement pond. Especially in terms of management, except for escape prevention, stocking and fishing, other management can be carried out according to the breeding objects of the original pond. There are also many ways of mixed culture of soft-shelled turtles in the pond, such as fish and soft-shelled turtle, fish clam soft-shelled turtle, shrimp and soft-shelled turtle, crab turtle mixed culture and so on.

Second good: low cost, good quality, high benefit

Since the existing ponds are used for mixed culture, a large amount of money for the construction of turtle ponds and annual equipment depreciation fees can be saved. In particular, the stocking density of turtle species in mixed culture ponds is determined according to the number of natural bait in the pond, so most of them can adopt the stocking mode of no feeding or less feeding. In this way, the cost of raising soft-shelled turtles can be reduced by more than half. The soft-shelled turtle mixed in the pond because of its strong vitality and eating natural bait, the quality of the soft-shelled turtle is like the wild. For example, Tongxiang City, Zhejiang Province, using shrimp ponds to cultivate Jiangnan soft-shelled turtles, not only the benefit per mu is several times higher than that of monoculture, but also the quality of shrimp and soft-shelled turtle is better than that of monoculture, which is deeply welcomed by local consumers.

Three good: improve the utilization rate of ponds and save land

After the reform and opening up, due to the needs of construction, land resources are increasingly scarce, especially in the developed coastal areas, land resources are as expensive as gold. Therefore, mixed culture of soft-shelled turtle in existing ponds can not only improve the utilization rate of ponds, but also save a lot of valuable land. There are millions of mu of ponds that can be used for mixed culture in our country. if 100 ponds per mu are mixed, hundreds of thousands of mu of land can be saved, which is of great significance.