Method for cultivating fries of coilia ectenes in soil pond

A technology of scorpionfish and earthen pond, which is applied in the field of fish farming, can solve the problems of increasing the cost of raising seedlings, increasing the cost of raising seedlings, and the intensity of large-scale seedling raising, and achieves the effects of ensuring rapid growth, realizing repeated use, and improving the quality of seedlings

Inactive Publication Date: 2013-11-27
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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Problems solved by technology

[0003] At present, in the seedling raising technology of swordfish, because the parent fish of swordfish is abnormally "delicate" and has a strong stress response, there is a saying that "you will die when you leave the water". The commonly used artificial induction and insemination technology can easily lead to scales falling off and death. The non-reusable use of the broodstock of the sword anchovy has also led to a sharp increase in the cost of seedling breeding; at the same time, there are asynchronous development of the gonads of the sword anchovy population, and t...

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Embodiment Construction

[0017] Below the present invention will be further described in conjunction with embodiment:

[0018] A kind of method for ecological seedling raising of cuttlefish earthen pond adopts the following process steps:

[0019] 1. Choose an outdoor earthen pond nursery pond with 2 to 4 mu, with a slope ratio of 1:2.5 to 3; after clearing the pond with quicklime and exposing it to the sun for 7 days, filter it into the river with a 40-mesh screen, the water depth is 1.2 to 1.5 meters, and the water temperature is 12 ℃ to 16 ℃.

[0020] 2. In the first ten days of March, select broodstock with clear contours and well-developed gonads from the broodstock breeding pond of sword anchovy, and put them into the nursery pond with a male-to-female ratio of 1:2, and put them in at a density of 50-100 fish / mu; at the same time, put in a certain density of bait Fish and shrimp (2 to 3 gobies / square meter, 5 to 10 freshwater shrimps / square meter) are used to further strengthen the breeding of ...

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Abstract

The invention discloses a method for cultivating fries of coilia ectenes in a soil pond, comprising the steps of selection of an outdoor soil pond fry cultivation pond, secondary intensified cultivation of parent fishes, separation of the parent fishes and the fries, and early-stage cultivation of the fries of the coilia ectenes by cultivating food organisms including rotifer, cladocera and the like. The method disclosed by the invention is simple and convenient to operate, economical and practical, realizes repeated use of the parent fishes, and is low in fry cultivation cost, high in fry survival rate, and strong in disease resistance. By adopting the principle of natural selection, weak and sick fries are eliminated, so that the purpose of improving the fry quality is achieved. In addition, pelagic organisms are cultivated by utilizing glucose, amino acid and other nutrient solutions, so as to provide sufficient baits for the fries, and thus the quick growth of the fries is guaranteed.

Description

technical field [0001] The invention relates to a method for raising seedlings of cuttlefish, specifically, a simple, practical, green and environment-friendly method for ecological seedling raising of cuttlefish in earthen ponds, and belongs to the technical field of fish breeding. Background technique [0002] Swordfish ( Coilia nasus ), belonging to Clupeiformes, Engraulidae, Anchovy ( Coilia ), commonly known as saury, is an important economically migratory fish in the Yangtze River in my country. It is famous for its freshness, fat and beauty, and enjoys the reputation of one of the "three delicacies of the Yangtze River". In recent years, the natural resources of sword anchovy have declined sharply, which is far from meeting the needs of the market. With the breakthroughs in irrigation, artificial breeding and pond technology, sword anchovy is gradually becoming a high-quality fish that is currently in short supply and has broad prospects. Aquaculture breeds. [00...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 杜富宽徐钢春顾若波徐跑聂志娟郑金良张呈祥
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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