Traditional Culture Encyclopedia - Photography and portraiture - Mixed culture of fish and turtles in ponds has three advantages. what do you think?
Mixed culture of fish and turtles in ponds has three advantages. what do you think?
There are three reasons: one advantage: the pond environment is good and the management is convenient. Due to the large pond area, water depth and natural climate in the field, the culture environment is better than that of factory greenhouses and intensive cement ponds. Especially in management, except for escape prevention, stocking and fishing, other management can be carried out according to the original pond culture objects. There are many ways to breed soft-shelled turtles in ponds, such as fish, mussels, shrimps, crabs and turtles. Because the existing ponds are used for polyculture, it can save a lot of funds for building turtle ponds and annual depreciation expenses for equipment. In particular, the stocking density of a species in a polyculture pond is determined by the amount of natural bait in the pond, so most of them can adopt the stocking mode of no bait or less bait. In this way, the cost of culture is reduced by more than half compared with that of conventional turtle culture. However, due to its strong vitality and natural bait, the quality of soft-shelled turtles mixed in the pond is also wild.
For example, in Tongxiang City, Zhejiang Province, mixed culture of Jiangnan soft-shelled turtle in shrimp ponds not only increased the yield per mu several times compared with single culture, but also improved the quality of cultured shrimp and soft-shelled turtle, which was well received by local consumers. Three good: improve the utilization rate of ponds and save land. After the reform and opening up, land resources have become scarce, especially in developed coastal areas. Therefore, mixed culture of Trionyx sinensis in existing ponds can not only improve the utilization rate of ponds, but also save a lot of valuable land. China has millions of acres of ponds for polyculture. It is of great significance to save hundreds of thousands of mu of land if the pond is polyculture per mu 100.
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