Method for cultivating Spanish mackerel

A technology of mackerel and mackerel, which is applied in the field of fish farming, can solve the problems such as the method of raising mackerel fry that have not been publicly reported, and achieve the effect of high breeding efficiency

Active Publication Date: 2013-01-09
NINGBO ACAD OF OCEAN & FISHERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Artificially bred Spanish mackerel fry have special requirements in terms of water quality, water temperature, salinity, bait domestication, feeding amount, feeding frequency and breeding management, especially the control of mutual cannibalism and bait domestication in pond culture. Creative exploration, there is no public report on the breeding method of artificially bred Spanish mackerel fry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] In June 2009, 200 Spanish mackerel fry were cultured in the indoor breeding pool of Ningbo Ocean World Aquarium, with a water body of 4 cubic meters and a water depth of 2-3 meters. The water temperature was controlled. At 16-25°C, the salinity is controlled within the range of 20-30‰, the first day of stocking Spanish mackerel fry, the pond is shaded for 18-24 hours a day, and live tilapia fry are used for feeding. The daily feeding amount is farmed Spanish mackerel 1 / 3 to 1 / 2 of the total weight of the fish, fed once a day at an average interval of 2-3 hours, the first feeding is from 5 to 6 in the morning, and the last feeding is from 6 to 7 in the evening. When the length is 5-6 cm, live tilapias are partially replaced with fresh fish, starting from 20%. Every 2-3 days, the amount of fresh fish replaced by live tilapias is increased by 10-20%. When the amount of chilled fish reaches 80%, raise the mackerel until the body length is 8-12 cm, and use chilled fish as th...

Embodiment 2

[0018] Substantially the same as Example 1, the only difference is that the breeding ground is a field breeding pond in Shepantu, a town in Ninghai County, the breeding water body is 300 cubic meters, and 9600 Spanish mackerel fry are cultivated, and the water temperature is controlled at 12~30°C. The salinity is controlled within the range of 10-34‰. During the acclimation process of feeding live tilapia fry to the bait partially replaced by chilled fish, the breeding pond is not shaded every day, but it is properly shaded when the light is strong. After about 40 days of breeding, The average body length is about 20cm, and the average weight is more than 50 grams. By October, when the weight reaches about 400 grams, 3004 tails can be grown and captured, and the growth rate is 31.3%.

[0019] Live tilapia fry in the above-mentioned embodiment also can be replaced with other fish, as yellow croup fry etc., as long as suitably select the fry of economy, reproduction fast, grow fa...

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PUM

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Abstract

The invention discloses a method for cultivating Spanish mackerel. Spanish mackerel grows appropriately and better by controlling cultivation condition, cultivation density, bait acclimation, iced and fresh fish feeding management and the like and maintaining appropriate water depth, appropriate water temperature, appropriate salt range, appropriate cultivation density and the like, then fresh and alive small trash fish is used for gradually acclimating until iced and fresh fishes are taken as feeding bait, and the iced and fresh fishes are thrown and fed every 2-3 times in the day when acclimating so as to prevent the Spanish mackerels from killing each other frequently owning to insufficient bait is thrown and fed, thus killing rate is relatively low, survival rate during cultivation reaches up to more than 30%, and cultivation efficiency is higher.

Description

technical field [0001] The invention relates to fish culture technology, in particular to a method for growing mackerel in a culture pond. Background technique [0002] Mackerel belongs to Perch order, Mackerel family (Machinidae), long and flat body, bright silver body color, dark stripes or black and blue spots on the back, large mouth, pointed snout, sharp teeth, fast swimming, fierce temperament, The general body length is 260-520mm, and the larger ones can reach more than 1m and weigh more than 20kg. They are distributed in the western North Pacific Ocean, and are produced in the East China Sea, Yellow Sea, and Bohai Sea. The main fishing grounds are Zhoushan, the sea off Lianyungang and the south coast of Shandong. It is a warm-water pelagic fish and often gathers in groups for long-distance migration. It grows rapidly, and the juvenile harpoon length can be 25-30cm. The average fork length of 1-2 year old fish is 50cm, and the average weight is about 800g. Before ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00A23K1/18A23K50/80
CPCY02B10/50Y02A40/81
Inventor 郑春静朱民军林桂芳
Owner NINGBO ACAD OF OCEAN & FISHERY
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