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Artificial propagation method of phoxinus lagowskii

A technology of artificial breeding and Lasseria's can be applied in application, climate change adaptation, fish farming, etc. It can solve problems such as inability to discharge parent fish and different spawning time, so as to increase reproduction speed, prevent egg eating, and improve spawning rate. The effect of egg mass

Pending Publication Date: 2022-05-20
晋中市农业农村局
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] When the existing Laspeyr's is artificially propagated, the parent fishes are put together to concentrate on spawning, and the parent fishes are taken out after a period of time. Since the spawning time of the parent fishes is different, it is impossible to make the spawning time different. Broodstock will discharge eggs, in view of this, we propose a method of artificial reproduction

Method used

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  • Artificial propagation method of phoxinus lagowskii
  • Artificial propagation method of phoxinus lagowskii

Examples

Experimental program
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Effect test

Embodiment 1

[0025] refer to Figure 1-2 Shown a kind of artificial reproduction method of Lasseria brevis, the method comprises:

[0026] S1: prepare breeding place, make the outer diameter 20 meters inner diameters on the ground and be the disk-shaped cement pool of 5 meters, the depth of cement pool is 60cm, lay gravel at the bottom of cement pool, the height of gravel is 5cm, fan-shaped is set in cement pool Screen frame, the outer diameter of the fan-shaped screen frame is 19 meters and the inner diameter is 6 meters. The angle radian of the fan-shaped screen frame is 30 degrees, and the height of the fan-shaped screen frame is 55 cm. Place it on top of the gravel, add water to the cement pool to make the water depth of the cement pool 50cm;

[0027] S2: put broodstock, select mature broodstock, and calculate the total amount of broodstock to be put in according to the area of ​​the fan-shaped screen frame, the ratio of male to female is 1:1.1, and then put 80% of the total amount of...

Embodiment 2

[0032] Based on the above-mentioned embodiment 1, the center of circle of the rotating module in the step S3 is the same as that of the disc-shaped cement pool. The advantage of such setting is that the rotary module can be moved along the direction of the disc-shaped cement pool.

Embodiment 3

[0034] Based on the above embodiment 1 or 2, the rotating module in the step S3 is a motor, the lifting module is a hydraulic cylinder, the drive shaft of the motor is connected to the hydraulic cylinder, and the output end of the hydraulic cylinder is connected to the hydraulic cylinder. The top of the fan-shaped screen frame is connected, and the motor is connected to the ground in the center of the disc-shaped cement pool through a bracket. Through the setting of the lifting module, the fan-shaped screen frame can be lifted, so as to facilitate the removal of the gravel by the sieve screen.

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Abstract

The invention relates to the technical field of artificial breeding of fishes, in particular to an artificial breeding method of phoxinus lagowskii, which comprises the following steps: step 1, preparing a breeding place, step 2, putting parent fishes, step 3, moving and laying eggs, and step 4, hatching, and when the parent fishes are put, selection can be quickly performed, so that the ratio of female fishes to male fishes can be quickly adjusted to 1: 1.1, and the survival rate of phoxinus lagowskii is increased. By means of the device, rapid screening is facilitated, the breeding speed is increased, spawning can be carried out while moving through spawning, it is guaranteed that parent fishes can lay all spawns on gravels on the disc-shaped cement pond, the spawning amount is increased, meanwhile, the parent fishes and the spawns are separated after spawning, and the parent fishes are effectively prevented from eating the spawns after delivery.

Description

technical field [0001] The invention relates to the technical field of artificial reproduction of fish, in particular to a method for artificial reproduction of Laspeurus. Background technique [0002] Lasseria is a small wild economic fish in rivers and rivers. Its meat is tender and delicious. The protein content in the muscle is (17.88±0.63)%, the fat content is (3.95±0.05)%, and it is rich in nutrition. It is a high-quality food that people love. Small economic fish has become a new breed in ponds in the northern region, and the market prospect is very promising. Under natural conditions, this fish inhabits rivers with low water temperature and clear water quality, and is mainly distributed in Heilongjiang, Tumen River, Yalu River, Liaohe River, tributaries of the upper and middle reaches of the Yellow River and other waters. [0003] When the existing Laspeyr's is artificially propagated, the parent fishes are put together to concentrate on spawning, and the parent fis...

Claims

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Application Information

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IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor 孙毅
Owner 晋中市农业农村局
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