Seed production and culture method for cyprinoid with short growth circle
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A technology of growth cycle and breeding method, applied in the field of aquaculture, can solve the problems affecting the production and sales of aquaculture, uneven quality, and degradation of traits, and achieve the effects of strong disease resistance, strong adaptability, and high yield
Inactive Publication Date: 2008-07-23
HUANXIN FIELD OF AQUATIC PROD & FINE BREED TIANJIN
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Problems solved by technology
[0003] However, the quality of the existing carp fry on the market is uneven, the varieties are mixed, and the characters are degraded, which...
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example 1
[0040] Common carp seed production and culture methods with a short growth cycle include:
[0041] 1. Selection and breeding of seed production parents
[0042] The genetic distance among three different carp populations was analyzed by RAPD technology, and two carp species with relatively long genetic distances --- the female Jinxin carp and the male Ukrainian carp were determined as the breeding parents; The male and female breeding parents with strong physique, disease-free and non-injured are selected from the reserve broodstock population. It is required that the female Jinxin carp weighs more than 2000g, and the male Ukrainian squamous carp weighs more than 1500g, and they are reared and cultivated in a single pond.
[0043] 2. The matching group of male and female parents: the ratio of male to female is 1:1.2~1.5;
[0054] The main morphological and biological characteristics of carp with a short growth cycle are as follows:
[0055] (1) Main morphological features
[0056] Table 1 Morphological characteristics of carp with short growth cycle
[0057]
project
Carp with a short growth cycle
(body length 291.0~
445.0mm)
project
Carp with a short growth cycle
(body length 291.0~
445.0mm)
Body Length / Height
3.04±0.25
Number of dorsal fin rays
iii, 18-21
Body Length / Body Width
5.62±0.56
Number of pectoral fins
i，15～18
body length / head length
4.56±0.47
number of pelvic fins
ii, 7~9
head length / kiss length
3.87±0.54
number of anal fins
iii, 4~5
head length / eye diameter
4.31±0.38
Number of gill rakers on the left first gill arch
19～23
Head length / eye distance
5.74±0.58
Tail handle leng...
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Abstract
The invention discloses a seed production and culture method of a carp with short growth period and comprises the steps of the selection of breeding parent, which determines Jinxin female carp and Ukrainian scaled male carp as seed production parents through the RAPD technology, grouping of the male and female parents with a proportion of 1 to 1.2-1.5, reproduction of fish seeds by the methods of artificial flushing, natural spawning or artificial insemination, incubation in the step of which artificial fish egg collectors with naturally produced eggs and artificial fish egg collectors with fertilized ovum through artificial dousing are delivered to a pond for natural incubation or the fertilized ovum through artificial insemination is doused in the waxed pond bottom and then placed into a ring channel for incubation after being collected and washed, and initial culture and commercial fish culture: each Mu of pond can culture 2,000-2,200 pieces of summer fingerlings or 1200-1400 pieces of spring fingerlings and is matched with silver carp fingerlings or spring fingerlings which account for 20 percent of the main culture objects. The fish can be cultured in the current year. The carp with short growth period cultured by the method of the invention has the advantages of unique shape, rapid growth, strong disease resistance and high yield.
Description
technical field [0001] The invention relates to the field of aquaculture, in particular to a method for producing and cultivating carp with a short growth cycle. Background technique [0002] Carp is the traditional breed with the widest breeding area, the largest area, and the highest total output in my country's aquaculture industry. It is also the largest freshwater aquaculture species in Tianjin. According to statistics, in 2005, there were more than 400,000 mu of freshwater pond aquaculture in Tianjin. , the total output of aquaculture is 277,000 tons, of which the output of carp is 95,000 tons, accounting for 34% of the total aquaculture output. Twelve districts and counties are involved in carp farming, and the intensive farming area is about 80,000 mu. [0003] However, the quality of the existing carp fry on the market is uneven, the varieties are mixed, and the traits are degraded, which affects the production and sales of aquaculture to a certain extent. This requi...
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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 金万昆
Owner HUANXIN FIELD OF AQUATIC PROD & FINE BREED TIANJIN
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