Culture method for oolong crucian carp and black 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 seed production, fry production and commercial fish breeding technology, affecting the adjustment of ornamental fish market structure, etc., and achieve short cycle times. , The pectoral fins are stretched and generous, and the effect of inhibiting cardiovascular disease

Inactive Publication Date: 2016-10-19
高云
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AI Technical Summary

Problems solved by technology

[0002] Black high-nutrition crucian carp--Oolong crucian carp and a 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, and nutritional value However, 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. It must be based on the distant hybridization of fish Principle, 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. Male fish use half the dose of female 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 thorax (the b...

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 cultivating 150g commercial fish in the same year: the pond is about 10 mu, 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% o...

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Abstract

The invention relates to a culture method for oolong crucian carps and black dragon carps. The invention belongs to the technical field of fish culture. The method comprises: (1) fingerling preparation: using carassius auratus cuvieri as female parent, and black dragon carps as male parent, or establishing a selfing line by black individuals with body color variation in a fancy carp group, selecting and breeding parents and breeding and reproducing; (2) spawning induction: injecting oxytocin drugs to promote estrus, matured eggs and sperms fertilizing; (3) hatch: splashing oosperms on a fish net, putting the fish net into a pond to hatch; or splashing the oosperms in bottom of the pond, after the oosperms are collected, hatching in an annular channel; (4) fry breeding: putting 2000-3000 thousands of fries in each mu, splashing soybean milk to breed fries; (5) cultivation: putting 12000-38000 fries of oolong crucian carps, or 15000-25000 fries of black dragon carps, culturing to adult fishes in the same year. The fishes cultured by the method are advantaged by black body color, graceful figures, fast growth, delicious meat quality, good stress resistance, wide feeding habits, and high nutritive values, and the method has wide application prospect.

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] Black high-nutrition crucian carp--Oolong crucian carp and a 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, and nutritional value However, 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. It must be based on the distant hybridization of fish Principle, 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 oolong crucian carp and black dragon ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 高云
Owner 高云
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