Industrial breeding method for bevel-band rockfish
A kind of oblique-banded grouper, industrialized technology, applied in fish farming, climate change adaptation, application, etc., can solve the problems of limited funds, small number of test broodstock, and supply of seedlings, etc., to achieve high survival rate of seedlings, reduce Microenvironmental coercion, reducing the effect of nutrient coercion
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[0012] The present embodiment comprises the following steps: (1) intensive cultivation of broodstock: at the end of March each year, mature broodstock is selected, and the broodstock is usually raised in a net cage with fishing rafts, fed with fresh miscellaneous fish, and fed with 2 months before laying eggs. Fish meal: squid: malt: earthworm: unsaturated fatty acid: compound vitamin = 80: 15: 2: 2: 0.8: 0.2 combination of parent fish fortified feed, strengthened cultivation; (2) egg hatching: above (1) strengthened One week before spawning, the reared broodstock are moved into a 60-ton circular spawning pond to lay eggs according to female: male = 2:1, with 32-35 tails in each pond, and the daily water change is 400-500%, and continue to be fed with fortified feed , keep the water temperature at 22-28°C to achieve natural spawning; the floating eggs produced by the broodstock are collected by the egg collection tank, and the separated fertilized eggs are placed in a small box...
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