Practical techniques for overwintering tilapia in simple plastic shed

Build a simple greenhouse to partially raise the water temperature of the pond. The investment is small and the material is easy to draw. In the southern region, tilapia and other fish can be safely spent in winter. The main contents of the simple greenhouse overwintering technology of tilapia are as follows: 1. Windproof shed is set up on the west and north sides of the pond, erected with bamboo or miscellaneous trees, erected on the west and north sides of the pond, with a height of 3 meters, and then tied into a rectangular grass mound with straw or sugarcane leaves to tie it to the bamboo frame to prevent the attack of cold wind and prevent the water temperature from falling sharply. 2, greenhouse film cover: bamboo frame is spread across the surface of the fish pond, covered with plastic film, about 0.5 meters from the pond surface, accounting for about 1x2-2x3 of the pond area, the film is covered with a thin net to prevent the strong wind from damaging the film.