A kind of efficient outdoor ecological pond artificial breeding method of brown-spotted grouper and clear water grouper hybrid
A brown-spotted grouper and ecological pond technology, which is applied in chemical instruments and methods, fish farming, seawater treatment, etc., can solve the problems of low fry survival rate, low quality of seedling emergence, and limitation of large-scale production of hybrid grouper. , to achieve the effect of improving the survival rate and growth quality, improving the digestion and absorption of nutrients, and artificially raising seedlings in high-efficiency outdoor ecological ponds.
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Embodiment 1
[0027] Embodiment 1-a kind of efficient brown spot grouper and the outdoor ecological pond artificial nursery method of clear water grouper hybrid, comprises the steps:
[0028] (1) Pre-treatment of cultivation environment:
[0029] Select an outdoor pond with a water depth of 1.8m. After removing the debris at the bottom of the pond and disinfecting it, after drying the pond continuously for 7 days, inject filtered and disinfected seawater, and evenly sprinkle bio-organic fertilizer 10kg / m on the pond. 3 ; And one week before the newly hatched hybrid larvae enter the pond, the daily input mass ratio is 3:1 Chlorella and Schizochytrium, so that the water body maintains a transparency of 40-50 cm;
[0030] (2) stocking in ponds:
[0031] The newly hatched hybrid larvae were placed at a density of 8000 fish / m 3 Put it into the pool, the temperature of the water entering the pool is 26°C, the salinity of the pool is 28, and the pH value is 7.8;
[0032] (3) Feeding management ...
Embodiment 2
[0039] Embodiment 2-a kind of efficient brown spot grouper and the outdoor ecological pond artificial nursery method of clear water grouper hybrid, comprises the steps:
[0040] (1) Pre-treatment of cultivation environment:
[0041] Choose an outdoor pond with a water depth of 2.2m. After cleaning the bottom of the pond and disinfecting it, after drying the pond continuously for 10 days, inject filtered and disinfected seawater, and evenly sprinkle bio-organic fertilizer 14kg / m on the pond. 3 ; And before the first hatched hybrid larva enters the pond one week ago, the daily input of chlorella and Schizochytrium with a mass ratio of 1:1 keeps the water body transparent at 40-50 cm;
[0042] (2) stocking in ponds:
[0043] The newly hatched hybrid larvae were placed at a density of 12,000 fish / m 3 Put it into the pool, the temperature of the water entering the pool is 28°C, the salinity of the pool is 33, and the pH value is 8.0;
[0044] (3) Feeding management
[0045] For...
Embodiment 3
[0049] Embodiment 3-a kind of efficient brown spot grouper and the outdoor ecological pond artificial breeding method of clear water grouper hybrid, comprises the steps:
[0050] (1) Pre-treatment of cultivation environment:
[0051] Select an outdoor pond with a water depth of 2.0m. After cleaning the bottom of the pond and disinfecting it, after drying the pond continuously for 9 days, inject filtered and disinfected seawater, and evenly sprinkle bio-organic fertilizer 12kg / m on the pond. 3 ; And before the first hatched hybrid larva enters the pond one week ago, the daily input mass ratio is 2:1 Chlorella and Schizochytrium, so that the water body maintains a transparency of 40-50 cm;
[0052] (2) stocking in ponds:
[0053] The newly hatched hybrid larvae were placed at a density of 10,000 fish / m 3 Put it into the pool, the temperature of the water in the pool is 27°C, the salinity of the pool is 30, and the pH value is 7.9;
[0054] (3) Feeding management
[0055] The...
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