What preliminary preparations are needed for cage culture of rice field eels?
Q: What preliminary preparations are needed for cage culture of rice field eels?
A: After the cage is ready, aquatic plants need to be transplanted. This is where rice field eel culture differs from the cage culture of other fish. Because rice field eels cultured in deep-water soil-less cages perch entirely on floating mats of aquatic plants, you should choose aquatic plants that both grow quickly and can form floating mats, such as water peanut and water hyacinth.
When transplanting and cultivating the floating mats of aquatic plants, it is best to cultivate mats 20-30 cm thick at the two ends of the cage, each occupying 1/3 of the position, respectively. Leave 1/3 of the water surface blank in the middle to facilitate pushing and managing the mats. The specific method is: first straighten the aquatic plant vines one by one on the shore, pile them into heaps, then tread on the heaps with your feet, and then use a five-tine iron fork to plant the piled aquatic plant vines upright in the cage, piece by piece. Generally, about 25 kg of aquatic plant vines are planted upright per square meter of cage area.
When transplanting and cultivating the floating mats of aquatic plants, it is best to cultivate mats 20-30 cm thick at the two ends of the cage, each occupying 1/3 of the position, respectively. Leave 1/3 of the water surface blank in the middle to facilitate pushing and managing the mats. The specific method is: first straighten the aquatic plant vines one by one on the shore, pile them into heaps, then tread on the heaps with your feet, and then use a five-tine iron fork to plant the piled aquatic plant vines upright in the cage, piece by piece. Generally, about 25 kg of aquatic plant vines are planted upright per square meter of cage area.