Artificial breeding method for seriola aureovittata
A technology of artificial breeding and yellowtail, applied in the fields of climate change adaptation, animal feed, additional food elements, etc., can solve the problems of sharp decline in the number of wild yellowtail, no mass production, and low survival rate of seedlings. Low deformity rate, low labor cost, and the effect of improving the survival rate
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Embodiment 1
[0032] An artificial breeding method for yellowtail yellowtail, comprising the following steps:
[0033] S1. Broodstock selection: select sexually mature broodstock over 4 years old with normal body color, lively and healthy body length ≥ 75cm, weight ≥ 7.0kg;
[0034] S2. Breeding of broodstock: Breeding broodstock in flowing water culture ponds, stocking density of broodstock is 8 / m 3 , feed high-quality bait every day 3 months before induction of labor, the amount of feeding is 10% of the weight of amberjack per time, and the frequency of feeding is 2 times per day; the main ingredients of the high-quality bait are prawns, drum shrimp and Small yellow croaker, the auxiliary material is fucus accounting for 12% by weight of the main ingredient; wherein, the mass ratio of prawns, drum shrimp and small yellow croaker is 0.8:1.2:1;
[0035] The water quality conditions for broodstock breeding are water temperature 22°C, dissolved oxygen 6-8mg / L, pH value 6-7, salinity 18‰, sca...
Embodiment 2
[0047] An artificial breeding method for yellowtail yellowtail, comprising the following steps:
[0048] S1. Broodstock selection: select sexually mature broodstock over 4 years old with normal body color, lively and healthy body length ≥ 75cm, weight ≥ 7.0kg;
[0049] S2. Breeding of broodstock: Breeding broodstock in flowing water culture ponds, stocking density of broodstock is 12 / m 3 , feed high-quality bait every day 2 months before induction of labor, the feeding amount is 8% of the weight of yellowtail yellowtail / time, and the feeding frequency is 2 times / day; the main ingredients of the high-quality bait are prawns, drum shrimp and Small yellow croaker, the auxiliary material is fucus accounting for 10% by weight of the main ingredient; wherein, the mass ratio of prawns, drum shrimp and small yellow croaker is 0.6:1.5:1;
[0050] The water quality conditions for broodstock breeding are water temperature 18°C, dissolved oxygen 6-8mg / L, pH value 6-7, salinity 25‰, scatt...
Embodiment 3
[0062] The difference between this embodiment and embodiment 1 is:
[0063] The high-quality bait is prepared by mixing prawns, drum prawns and small yellow croakers at a mass ratio of 0.8:1.2:1.
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