A cultivation method of oolong crucian and ink dragon carp

A breeding method and technology for oolong crucian carp, which are applied in the breeding field of oolong crucian carp and Molong carp, can solve the problems of lack of good seed production, fry production and commercial fish breeding technology, affecting the adjustment of ornamental fish market structure, etc. Short, stretched pectoral fins, nutrient-rich effect

Inactive Publication Date: 2008-04-16
HUANXIN FIELD OF AQUATIC PROD & FINE BREED TIANJIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the black high-nutrition crucian carp--Oolong crucian carp and the new black carp--Molong carp, these two new species of freshwater cultured fish that are both ornamental and edible, have black body color, unique shape, fast growth, High nutritional value, strong stress resistance and wide feeding habits, etc., but these two kinds of fish do not have good seed production, seed production and commercial fish farming technology, which affects the ornamental fish market and the adjustment of aquaculture species structure. The principle of hybridization, using modern biological breeding technology to breed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The production methods of oolong crucian carp include:

[0039] 1. Seed production

[0040] Using distant hybridization between genera, white crucian carp was used as the female parent and Molong carp was used as the male parent to obtain a hybrid——Oolong crucian carp.

[0041] 2. Seed production

[0042] (1) Adopt artificial aphrodisiac method. Inject oxytocin drugs to broodstock in order to obtain mature eggs and sperm. The oxytocin drugs are luteinizing hormone-releasing hormone analog (LRH-A) and chorionic gonadotropin (HCG), and the injection dose is LRH per kg body weight of female fish -A 20-25 μg and HCG 300-500 IU. Half the dose for female fish was used for male fish. Female fish were injected with oxytocin drugs twice, with an interval of 12 hours. The first injection dose was 1 / 3 of the full dose, and the second injection was the rest; the male fish was injected once, and the female fish was injected at the second injection. The injection site is the tho...

Embodiment 2

[0052] The production process of Molong carp culture includes:

[0053] 1. Seed production

[0054] Molong carp is an individual with 4 black-body colors in the offspring of koi breeding. These 4 black-body-color individuals are bred to sexual maturity, an inbred line is established, and then mixed selection technology is used from the offspring of the inbred line population breeding Generation by generation selection to F 6 .

[0055] 2. Seed production

[0056] Both parents are Molong carp, and other operating techniques are the same as in Example 1.

[0057] 3. Breeding

[0058] There are three modes in the growing technology of Molong carp commercial fish:

[0059] (1) The technology of raising 150g commercial fish in the same year: the pond is about 10 acres, the water depth is 1-1.5m, and 20,000 black crows or 12,500 summer flowers are released per mu, with 500-1000 silver carp black cubs or summer flowers, and the powder is fed. The daily feeding amount is 5-7% of...

Embodiment 3

[0063] The oolong crucian carp of embodiment 1 and embodiment 2 gained and black dragon carp main form, biological characteristic are as follows:

[0064] (1) Main morphological features

[0065] Table 1 Morphological characteristics of Oolong carp and Molong carp

[0066]

project

Oolong crucian carp

(Body length

20.7-27.7cm)

Black dragon carp

(body length 21.00-32.00cm)

Body Length / Height

2.32±0.13

3.14±0.24

Body length / body thickness

4.16±0.47

4.48±0.18

body length / head length

3.50±0.18

3.56±0.19

head length / kiss length

2.73±0.09

2.71±0.09

head length / eye diameter

5.72±0.53

5.46±0.44

Head length / eye distance

2.33±0.15

2.56±0.18

Tail handle length / Tail handle height

0.72±0.10

0.99±0.21

Number of dorsal fin rays

iii(iv), 17-19

iii(iv), 16-19

Numb...

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PUM

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Abstract

The invention relates to a method for culturing oolong carp and molong carp, which belongs to the technology field of fish culture. The invention includes: (1) producing eggs: establishing inbred line to breed parents, propagate and product according to crucian carp as female parent, molong carp as male parent, or the black individual with variation of body color in the group of omamental carps; (2) inducing spawning: injecting induced spawning drug to estrualize, making mature ovum and sperm inseminate; (3) breeding: dousing fertilized eggs onto the fish nest and putting them into the tank to breed; or dousing them onto the bottom of the tank, hatching looply after fertilized eggs are collected; (4) culturing young fishes: putting 2,000,000-3,000,000 fish fries into the tank, dousing soybean milk to breed young fishes; (5) cultivating: putting 12,000-38,000 young oolong carps or 15,000-25,000 young molong carps into the tank per mu, which grow up this year. Fishes of the invention have the advantage of coal black body, elegant shape, quick growth, delicious meat, strong stress resistance, wide feeding habits, high nutritional valve and extensive application prospects.

Description

technical field [0001] The invention belongs to the technical field of fish farming, in particular to a method for cultivating oolong crucian carp and black dragon carp. Background technique [0002] At present, the black high-nutrition crucian carp--Oolong crucian carp and the new black carp--Molong carp, these two new species of freshwater cultured fish that are both ornamental and edible, have black body color, unique shape, fast growth, High nutritional value, strong stress resistance and wide feeding habits, etc., but these two kinds of fish do not have good seed production, seed production and commercial fish farming technology, which affects the ornamental fish market and the adjustment of aquaculture species structure. The principle of hybridization, the use of modern biological breeding technology breeding. Contents of the invention [0003] In order to solve the problems existing in the prior known technology, the present invention provides a breeding method for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A61D19/00
CPCY02A40/81
Inventor 金万昆
Owner HUANXIN FIELD OF AQUATIC PROD & FINE BREED TIANJIN
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