Cultivation method of juvenile leech
A cultivation method and technology for leech seedlings, which are applied in the field of aquaculture and can solve the problems of leech screw clamping and the like
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Embodiment 1
[0007] In pool water with a certain pH, maintain a certain oxygen content in the water, put a certain amount of leech seedlings and apple snail seedlings for the first time, change to 2 pools after 10 days, change to 4 pools after 10 days, and put them in cages after 10 days ; The leech seedlings and the apple snail seedlings correspond in size, the small leech seedlings correspond to the small apple snail seedlings, and the large leech seedlings correspond to the large apple snail seedlings; the described pH is pH=6; the described oxygen content is 0.7mg / L described small leech, its initial release amount is: 3000 tails / square; described small apple snail, its daily release amount is 15kg / mu; No more than 0.6mm; the leech seedling is a leech seedling less than 3g.
Embodiment 2
[0009] In pool water with a certain pH, maintain a certain oxygen content in the water, put a certain amount of leech seedlings and apple snail seedlings for the first time, change to 2 pools after 10 days, change to 4 pools after 10 days, and put them in cages after 10 days Inside; described leech seedlings and apple snail seedlings have corresponding sizes, small leech seedlings correspond to small apple snail seedlings, and large leech seedlings correspond to large apple snail seedlings; the described pH is pH=8.5; the described oxygen content is 2.0mg / L; described small leech, its initial release amount is: 3000 tails / square; described small apple snail, its daily release amount is 30kg / mu; , no more than 0.6mm; the leech seedling is a leech seedling less than 3g.
Embodiment 3
[0011] In pool water with a certain pH, maintain a certain oxygen content in the water, put a certain amount of leech seedlings and apple snail seedlings for the first time, change to 2 pools after 10 days, change to 4 pools after 10 days, and put them in cages after 10 days The leech seedlings and the apple snail seedlings have corresponding sizes, the small leech seedlings correspond to the small apple snail seedlings, and the large leech seedlings correspond to the large apple snail seedlings; the described pH is pH=7; the described oxygen content is 1.5mg / L ; said small leech, its initial feeding amount is: 3000 tails / square; said small apple snail, its daily feeding amount is 20 leech seedlings, which is less than 3g of leech seedlings.
PUM
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