Method for cultivating cray in rice field in southern region
A technology in southern regions and rice fields, applied in the field of aquaculture, can solve problems such as crayfish that have never been reported, and achieve the effects of increasing the quality and output of farming, inhibiting the occurrence of pathogenic bacteria, and increasing output value
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Embodiment 1
[0027] 1. Experimental location
[0028] A farmer in Linzhai Town, Heping County, Heyuan City, with an area of 100 mu. In the first half of 2017, rice fields were used to breed crayfish. The seedlings were Hubei Qianjiang crayfish seedlings, and the shrimp seedlings began to be released in late April.
[0029] 2. Stocking and harvesting
[0030] Rice field selection and transformation → escape prevention facility construction → clear pond → aquatic plant planting → crayfish stocking → feeding management → fishing and marketing.
[0031] 1) Paddy field selection and digging ring ditch, soaking field
[0032] Paddy field requirements: sufficient water source, fresh water quality, sufficient dissolved oxygen, no pollution, and convenient drainage. Clayy loam soil is preferred, widen and heighten the ridge, dig a 3-meter-long ditch along the perimeter of the ridge, with a depth of 1.2 meters, a width of 3 meters, and a slope ratio of 1:2. The paddy field area is 15 mu, rectan...
Embodiment 2
[0052] 1. Experimental location
[0053] The pond breeding area in Longchuan County, Heyuan City is 60 mu, with a total of 3 ponds. Pond conditions: Excavation is based on the basic shape of the farmland, and the area of each pond varies slightly.
[0054] 2. Stocking and harvesting
[0055] 1) Digging ring ditches, soaking fields
[0056] Paddy field requirements: sufficient water source, fresh water quality, sufficient dissolved oxygen, no pollution, and convenient drainage. Clay loam soil is preferred, the ridges are widened and heightened, and ring ditches are dug around the ridges, with a depth of 1.2 meters, a width of 5 meters, and a slope ratio of 1:3. The paddy field area is 15 mu, rectangular and east-west. Install a 60-mesh silk screen at the inlet and outlet to prevent wild fish and fish eggs from entering the pool with the water flow. Crayfish have a strong ability to escape, and anti-escape facilities must be prepared. Usually, anti-escape facilities are e...
Embodiment 3
[0074] 1. Experimental location
[0075] There are 3 ponds with a breeding area of 80 mu. Pond conditions: Excavation is based on the basic shape of the farmland, and the area of each pond varies slightly.
[0076] 2. Stocking and harvesting
[0077] 1) Paddy field selection and digging ring ditch, soaking field
[0078] Paddy field requirements: sufficient water source, fresh water quality, sufficient dissolved oxygen, no pollution, and convenient drainage. Clay loam is better, the ridge is widened and heightened, and a ring ditch is dug around the ridge, with a depth of 1.5 meters and a width of 4 meters. The area of the paddy field is 20 mu, rectangular and east-west. An 80-mesh silk screen is installed at the inlet and outlet to prevent wild fish and fish eggs from entering the pool with the water flow. Crayfish have a strong ability to escape, and anti-escape facilities must be prepared. Usually, anti-escape facilities are erected along the field ridge with mes...
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