Method for relay breeding of Ictalurus punctatus
A technology for stocking channel catfish and fingerlings, which is applied to chemical instruments and methods, fish farming, and special treatment targets, can solve problems such as vulnerability to control, disadvantages of farmers' bargaining power, and reduced comprehensive economic benefits of aquaculture ponds. Mutual rubbing, improving comprehensive economic benefits and ecological benefits, and reducing the effect of fish load
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Embodiment 1
[0050] Embodiment 1 and Example 2 were carried out at the base of Nantong Hualiu Aquatic Products Co., Ltd., and Example 3 was carried out at the base of Weihua Aquatic Products Breeding Factory in Xiangshui County; Comparative Example 1 was carried out at the base of Nantong Hualiu Aquatic Products Co., Ltd., and Comparative Example 2 was carried out at the base of Nantong Hualiu Aquatic Products Co., Ltd. It was carried out at the base of Weihua Aquatic Products Breeding Factory in Xiangshui County.
[0051] The aquatic fry used in the above-mentioned examples and comparative examples, inputs such as polyferric sulfate, potassium persulfate, catfish feed compound feed and the like are all available from commercial purchases.
[0052] Example 1
[0053] The implementation site is at the base of Nantong Hualiu Aquatic Products Co., Ltd., and the implementation time is from January 2020 to December 2020. The pond number is North 1#, with an area of 59 acres, a pond depth of 2...
Embodiment 2
[0099]The implementation site is the 2# pond in the north of the base of Nantong Hualiu Aquatic Products Co., Ltd. The implementation time is from January 2020 to December 2020. The area of the pond is 48 mu, the depth of the pond is 2.5m, the water depth is 1.2m-2.4m, and the bottom silt is ≤15cm , the water inlet and drainage are convenient, and the water quality of the water source meets the water quality requirements of freshwater aquaculture; the pond is equipped with a 4kW power air feeding bait feeding machine and a 280W power single box type bait feeding machine, and is equipped with 5 3kW impeller type aerators ; The preparatory work before the seed is stocked in a suitable place is with embodiment 1.
[0100] Fish species, specifications, and time are the same as in Example 1, and the stocking density per mu of each aquatic seedling is: 400 tails of pomfret, 40 tails of silver carp species, 70 tails of bighead carp species, and 500 tails of catfish species in the fi...
Embodiment 3
[0119] The implementation site is at the base of Weihua Aquatic Products Breeding Factory in Xiangshui County. The implementation time is from January 2020 to December 2020. The pond number is A1 and the area is 150 mu; the depth of the pond is 2.8m, and the water depth is 1.2m-2.4m. Silt ≤ 12cm, easy drainage, water quality meets freshwater aquaculture water quality requirements; equipped with a 4kW power wind feeding machine and two 280W single-box bait feeding machines, and two single box-type bait feeding machines The bait machines are arranged side by side with a distance of 50m; equipped with 10 3kW water wheel aerators.
[0120] 1. Stocking fish species
[0121] 1) The first batch of catfish farming:
[0122] Pomfret chinensis: On February 8, 350 pomfrets with a size of 15 per jin were stocked, and a total of 3,500 jin (7 yuan / jin) were stocked;
[0123] Silver carp: On February 17, 40 silver carp species with a specification of 1 catties / tail were stocked, and a tota...
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