Large loach offspring breeding pond and breeding method

A cultivation method and a large-scale technology, which are applied in large-scale seed cultivation ponds and cultivation fields of loach, can solve the problems of low seedling survival rate, incomplete cultivation technology, and single cultivation method, so as to promote fish growth and improve Effect on fish survival rate

Inactive Publication Date: 2014-06-25
HUAZHONG AGRI UNIV
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AI Technical Summary

Problems solved by technology

The artificial propagation of loach has long been conquered, but the breeding technology of large-scale seedlings of loach has not been completely overcome so far.
At present, the breeding method of loach seedlings is relatively simple, and people usually use pond seine method to cultivate large-scale seedlings of loach. The cultivation efficiency of this method is very low.

Method used

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  • Large loach offspring breeding pond and breeding method
  • Large loach offspring breeding pond and breeding method
  • Large loach offspring breeding pond and breeding method

Examples

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Effect test

Embodiment 1

[0024] Such as figure 1 , 2 Shown, a kind of loach large-scale nursery pond comprises square pond 1 and microporous aeration pipe 2, and the top of described square pond 1 is provided with water inlet tap 3, and described square pond 1 is a cement pond, and in the middle of the bottom of the pond A hollow first drainage tube 4 is provided, the lower end of the first drainage tube 4 passes through the bottom of the square pool 1 and communicates with the drain pipe 5, and the wall of the first drainage tube 4 is provided with several drainage holes 6, The drainage hole 6 is located above the bottom of the square pool 1 . Described microporous aeration pipe 2 is located at the bottom of the pond 1 around the square pond 1, and the diameter of its micropore is 16 millimeters. The bottom of the square pool 1 is funnel-shaped with high surroundings and low middle, and the slope of the bottom of the square pool 1 is 2 degrees. The corner of the square pool 1 is also provided with...

Embodiment 2

[0027] A method for cultivating large-scale seedlings of loach, comprising the following steps:

[0028] 1) Put loach fertilized eggs in the cultivation pond in Example 1, control the water depth to 20-30cm, the water temperature to 25°C, and the dissolved oxygen in the water to be above 5mg / L;

[0029] 2) Two days after the hatching of fertilized eggs, first feed Artemia for 4 days, then feed Artemia and earthworms for 3 days, and finally feed earthworms and special feed to adults, and the special feed consists of the following components by weight percentage composition:

[0030] Fish meal 60%, soybean meal 5%, wheat flour 8%, sodium carboxymethyl cellulose 4%, starch 4%, dextrin 3%, soybean lecithin 4%, fish oil 4%, soybean oil 2%, vitamin C 0.05% , microcrystalline cellulose 3% and 2.95% trace element and mineral premix.

[0031] The trace element and mineral premix contains the following ingredients:

[0032] According to 1Kg premix: vitamin A96.26mg, vitamin D39.68mg,...

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Abstract

The invention discloses a large loach offspring breeding pond. The large loach offspring breeding pond comprises a square pond body and a micropore aerator pipe. A water inlet faucet is formed in the upper portion of the square pond body, the bottom of the square pond body is provided with a hollow first drainage barrel, the lower end of the first drainage barrel penetrates through the bottom of the square pond body and is communicated with a drainage pipe, the wall of the first drainage barrel is provided with a plurality of drainage holes, the drainage holes are located above the bottom of the square pond body, and the micropore aerator pipe is arranged around the bottom of the square pond body. The invention further discloses a method for breeding large loach offsprings, by means of the method, the large loach offspring can be bred in a high-breeding-density and high-survival-rate mode, the per mu yield of the loach offsprings can reach to 1.3 million, the survival rate can reach to more than sixty percent, and the per mu yield and the survival rate are in the advanced level at home and abroad.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a large-scale loach seedling cultivation pond and a cultivation method. Background technique [0002] Loach (Misgurnus anguillicaudatus) belongs to the class Fish, Cyprinidae, Loachidae, and the genus Loach. This species is widely distributed in countries and regions such as China, Japan, North Korea, Russia, and Southeast Asia. In my country, it is mainly distributed in natural waters such as rivers, ditches, paddy fields, ponds, lakes, and reservoirs in the eastern region of China. It has extremely high edible value and medicinal value. It is an important small economic fish in my country. [0003] In recent years, loach has become one of the best-selling species in the aquatic market, but due to the increase in fishing intensity and the destruction of the natural water environment, its wild resources have declined sharply. At the same time, the quality of wild...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K63/00A01K61/00A23K1/18A23K1/16A23K1/175
CPCY02A40/81Y02A40/818Y02P60/87
Inventor 高坚曹小娟王卫民陈钢铭彭鑫
Owner HUAZHONG AGRI UNIV
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