Cultivation method of pelteobagrus fulvidraco fry
A breeding method and technology of yellow catfish, applied in fish farming, application, climate change adaptation, etc., can solve problems such as low survival rate and easy disease of yellow catfish fry
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Embodiment 1
[0044] A method for cultivating yellow catfish fry, comprising the steps of:
[0045] (1) Choose an area of 40m 2 Indoor breeding ponds, filled with water to a water depth of 1.4m, and 800 fish / m 2 The density is put into the nursery pool;
[0046] (2) Start to feed the fry after 2 days, and feed 3 times a day, the daily feeding time is 6:00, 14:00 and 20:00 respectively, and the weight ratio of the feed fed each time is 2: 3:4; when the average weight of fry is less than 5g, the daily feed amount is 2% of the total mass of fry; when the average weight of fry is 5-20g, the daily feed amount is 8% of the total mass of fry; When the average body weight of the fish is > 20g, the amount of feed fed every day is 12% of the total mass of fry;
[0047] (3) after fry was put in for 5 days, each nursery pond was sterilized with quicklime of 800g, and was sterilized once every 10 days thereafter;
[0048] (4) Change the water after 4 days after the fry is put in, and then change t...
Embodiment 2
[0050] A method for cultivating yellow catfish fry, comprising the steps of:
[0051] (1) Choose an area of 60m 2 Indoor breeding ponds, filled with water to a water depth of 1.0m, and 700 fish / m2 of the yellow catfish fry that have been filmed for 4 days 2 The density is put into the nursery pool;
[0052](2) After 4 days, the fish fry started to be fed with feed, 4 times a day, and the daily feeding time was 6:30, 12:30, 17:30 and 22:30 respectively, and the weight of the feed fed each time The ratio is 2:4:3:4; when the average weight of fry is less than 5g, the amount of feed fed every day is 4% of the total mass of fry; when the average weight of fry is 5-20g, the amount of feed fed every day is 5% of the mass; when the average weight of the fry is > 20g, the daily feed amount is 8% of the total mass of the fry;
[0053] (3) after fry was put in for 7 days, each nursery pond was sterilized with quicklime of 1200g, and then sterilized once every 8 days;
[0054] (4) ...
Embodiment 3
[0056] A method for cultivating yellow catfish fry, comprising the steps of:
[0057] (1) Choose an area of 50m 2 Indoor breeding ponds, filled with water to a water depth of 1.2m, and 750 fish / m2 of the yellow catfish fry that have been filmed for 4 days 2 The density is put into the nursery pool;
[0058] (2) After 3 days, the fish fry start to be fed with feed, 3 times a day, and the daily feeding time is 7:00, 15:00 and 21:00 respectively, and the weight ratio of the feed fed each time is 3: 4:4; when the average weight of fry is less than 5g, the daily feed amount is 3% of the total mass of fry; when the average weight of fry is 5-20g, the daily feed amount is 6% of the total mass of fry; When the average body weight of the fish is > 20g, the daily feed amount is 11% of the total mass of fry;
[0059] (3) After the fish fry was put in for 6 days, each nursery pond was disinfected with quicklime of 1000g, and then disinfected once every 9 days;
[0060] (4) Change th...
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