CN103651210A

CN103651210A - Lobster cultivation method

Info

Publication number: CN103651210A
Application number: CN201310672578.7A
Authority: CN
Inventors: 杜伟林
Original assignee: Suzhou City Xiangcheng District Xinshidai Special Aquafarm
Current assignee: Suzhou City Xiangcheng District Xinshidai Special Aquafarm
Priority date: 2013-12-12
Filing date: 2013-12-12
Publication date: 2014-03-26

Abstract

The invention discloses a lobster cultivation method. The lobster cultivation method comprises the following steps of (1) carrying out parent lobster selection, (2) carrying out parent lobster cultivation, (3) carrying out parent lobster reproduction, and (4) carrying out parent lobster wintering. The lobster cultivation method has the advantages that the reproduction speed is high, the taste is delicious, and nutrients are rich.

Description

Lobster cultural method

Technical field

The present invention relates to a kind of lobster cultural method.

Background technology

Cray originates in North America, is the important kind of U.S.'s Freshwater shrimps cultivation.Within 1938, cray is imported China into, and this shrimp is now distributed widely in China northeast, North China, northwest, southwest, East China, Central China, south China and Taiwan, has become the valuable source of China's Freshwater shrimps.Jingmen is since large-scale farming cray last year.Jingmen in 2005 in pond, rice field, marshland cultivation cray area reach 30,000 mu.Only Shayang County Mao Lee, Guan Dangdeng town are carried out rice shrimp continuous cropping area for 2005 and are reached 20,000 mu.Jingmen cray cultured area in 2006 reaches 50,000 mu, and the foster shrimp area of only rice shrimp continuous cropping, the crop rotation of rice shrimp, three kinds of patterns of rice shrimp symbiosis just reaches 30,000 mu, develops very rapid.Cray meat flavour is delicious, nutritious, is a kind of high protein, low-fat healthy food.Deeply be subject to the welcome of domestic and international market, it not only becomes the delicious food on China urban and rural residents dining table, and Ye Shi China exports American-European main freshwater fish in a large number.The price of Hubei Province cray in 2006 reaches 12～24 yuan/kg, is up to 28 yuan/kg, has surpassed the market price of traditional fish.The relation between market supply and demand of this anxiety, makes cray industry have higher economic benefit and vast potential for future development.Development cray is propagated artificially not only and can solve market supply and demand contradiction, but also has opened up the channel of a farmer richness.Cray adaptable, reproduction speed is fast, and rapidly, happiness digs a hole, and crops, Chi Geng and irrigation and water conservancy are had to certain destruction in migration, but the ability that digs a hole of cray, climbs up by holding on to ability and translational speed on land all more than a little less than Sinensis huge legendary turtle crab.In general, cray is that The afvantages outweigh the disadvantages as a kind of aquatic resources to the mankind, has higher exploitation and is worth.

Summary of the invention

The object of the present invention is to provide a kind of lobster cultural method, have that reproduction speed is fast, a delicious flavour, the feature such as nutritious.

Technical scheme of the present invention is: a kind of lobster cultural method, comprises the following steps:

(1) close shrimp is selected: can be in 9-10 month last year or the 3-4 month select close shrimp then, require body weight 30-50g, and male and female need certain proportion;

(2) parent shrimp rearing: close shrimp pool area is advisable with 1200 ㎡ left and right, substrate for well, about depth of water 1m, more than the wide 1.5m in the ridge, pond, has sufficient good water source with loam;

(3) close shrimp breeding: the 4-5 month, when water temperature 20 is above, close shrimp starts mating.Fertilized egg is hatched as young shrimp in female shrimp abdomen, brooding time needs 40 1 70 days, after young shrimp hatching, under parent protection, complete the growth and development process in juvenile prawn stage, young shrimp one leaves parent, just can initiatively ingest, live on one's own life, while having a large amount of young shrimps to occur in finding breeding pond, should collect seedling in time, carry out shrimp seed rearing;

(4) relative shrimp overwintering: close shrimp guarantees that the water temperature of overwintering period is at 16 ℃ one 18 ℃, continues to keep water temperature 2-3 month.

In a preferred embodiment of the present invention, described female-male proportion is 2-3:1.

A kind of lobster cultural method of the present invention, has that reproduction speed is fast, a delicious flavour, the feature such as nutritious.

Accompanying drawing explanation

Accompanying drawing 1 is the schematic flow sheet of lobster cultural method one preferred embodiment of the present invention.

Embodiment

Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.

Refer to Fig. 1, Fig. 1 is a kind of lobster cultural method of the present invention, comprises the following steps:

Further illustrate, described female-male proportion is 2-3:1.

Further illustrating, close shrimp select in male and female lobster feature is obvious in shape, easily difference.1, reach sexually matured lobster, male is obviously greater than female; 2, male dragon foot is thick, and there is a bright red molluscum in outside, imperial sufficient two ends, and female dragon foot is relatively little, there is no red molluscum, even if there is color also partially light on most of female foot; 3, male gonopore opening is at the 5th pair of step base portion, female reproduction hole opening at the 3rd pair of step base portion; 4, sexually matured female shrimp belly expands, and male shrimp belly is relatively narrow and small.Parent shrimp pool area is advisable with 1200m2 left and right, substrate with loam for well, depth of water 1m left and right, more than the wide 1.5m in the ridge, pond, there is sufficient good water source, build up note, discharge outlet, surrounding Chi Geng builds with plastic film or calcium-plastic board in case escape wall, puts 50-60kg/ mu quicklime dry pool sterilization for pond in first 7 one 10 days in a suitable place to breed.Sterilization is by filtering the dark 1m of (anti-wild fishes enters pond) water filling left and right, applies the animal dung 500-800kg/ mu that the becomes thoroughly decomposed water quality of fostering and apply fertilizer.In pond, put people and climb the things concealed of perching for shrimp, as branch, tree root, thick bamboo tube etc., and transplant some pasture and water.Close shrimp 40-60kg/ mu can be thrown in parent shrimp pond, puts front use 3% saline solution dipping bath in a suitable place to breed 10 minutes, to kill pathogene.For making full use of water body and regulating water quality, can raise together with silver carp, bighead 50-100 tail/mu simultaneously.Nurturing period, can throw something and feed fresh pasture and water, soya-bean cake, wheat bran or manufactured feed, and add a part of feed of animal origin.As the spiral shell freshwater mussel meat of chopping, slaughtering offcuts etc.Day feeding volume: be the 2%-3% of close shrimp body weight March, in April 4% one 5%, after May 6% one 8%, every day early, respectively throw something and feed 1 evening, take at dusk as main, accounts for 70% of day bait amount.Strengthen water quality management, every 10-15 days renews water 1 time, changes water 1/3 at every turn simultaneously; Within every 20 days, with quicklime 10-25g/m2, be watered and splash 1 time, to keep good water quality, promote close shrimp gonad development.The invention provides a kind of lobster cultural method, have that reproduction speed is fast, a delicious flavour, the feature such as nutritious.

The specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention, and the variation that can expect without creative work or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.

Claims

1. a lobster cultural method, is characterized in that: comprise the following steps:

Parent shrimp is selected: can be in 9-10 month last year or the 3-4 month select close shrimp then, require body weight 30-50g, and male and female need certain proportion;

Parent shrimp rearing: close shrimp pool area is advisable with 1200 ㎡ left and right, substrate for well, about depth of water 1m, more than the wide 1.5m in the ridge, pond, has sufficient good water source with loam;

Parent shrimp breeding: the 4-5 month, when water temperature 20 is above, close shrimp starts mating, and fertilized egg is hatched as young shrimp in female shrimp abdomen, brooding time needs 40 1 70 days, after young shrimp hatching, under parent protection, complete the growth and development process in juvenile prawn stage, young shrimp one leaves parent, just can initiatively ingest, live on one's own life, while having a large amount of young shrimps to occur in finding breeding pond, should collect seedling in time, carry out shrimp seed rearing;

Relative shrimp overwintering: close shrimp guarantees that the water temperature of overwintering period is at 16 ℃ one 18 ℃, continues to keep water temperature 2-3 month.

2. lobster cultural method according to claim 1, is characterized in that: described female-male proportion is 2-3:1.