CN104663539A

CN104663539A - Hairy crab breeding method

Info

Publication number: CN104663539A
Application number: CN201510046326.2A
Authority: CN
Inventors: 张夕鹏
Original assignee: Chongqing Peng Feng Agricultural Development Co Ltd
Current assignee: Chongqing Peng Feng Agricultural Development Co Ltd
Priority date: 2015-01-29
Filing date: 2015-01-29
Publication date: 2015-06-03

Abstract

The invention relates to a hairy crab breeding method. The hairy crab breeding method includes the following steps: (1), building a pond, namely building a pond with a concrete bottom, and cleaning the pond by using quicklime; (2), injecting water, namely injecting water into the pond, wherein salinity of the water is 20-32%, and regularly changing the water during subsequent daily management; (3), transforming the pond, namely laying a fine soil layer at the bottom of the pond, arranging a plurality of small soil hummocks uniformly at the bottom of the pond, scattering gravel on the fine soil layer, and planting aquatic weed on the fine soil layer; (4), stocking hairy crabs; (5), supplying feed which include natural feed and processed feed. By the hairy crab breeding method, the hairy crabs are enabled to grow in wide and nature-simulated environment, and through a combination of the natural feed and the processed feed, the hairy crabs bred by the method are better in taste, richer in nutrition and more similar to wild hairy crabs and are a kind of safe and healthy food; the hairy crabs are bred in a large scale, thereby being more affordable than the wild hairy crabs.

Description

A kind of cultural method of steamed crab

Technical field

The present invention relates to the raising method of a kind of aquatic animal in aquaculture field, be specifically related to a kind of cultural method of steamed crab.

Background technology

Steamed crab is a kind of economic crab, also known as river crab, eriocheir sinensis, clear water crab or crab.For the cuisines that China has long enjoyed a good reputation.Its foot of a chela is used for taking food with against the enemy, and the close raw fine hair of outer rim in metacarpus, therefore Eriocheir gains the name.Steamed crab is the cuisines that people like, not only tasty mouthfeel but also nutritive value are very high, and the kind of current steamed crab is very many.But is mostly all domestic, and feed multiselect manufactured feed, the inside with the addition of the chemical substances such as a large amount of additives, its nutritive value is caused to be affected and not green health.And wild steamed crab negligible amounts, price are higher, the demand of consumers in general cannot be met.Therefore, cultivate a kind of mouthfeel good, be of high nutritive value but material benefit steamed crab be raisers expect and pursue.

Summary of the invention

The object of this invention is to provide a kind of cultural method of steamed crab.The object of the invention is to be achieved through the following technical solutions:

A cultural method for steamed crab, described cultural method comprises the following steps:

1. the pool is built: build the pond at the bottom of a cement, clean up the pond with quicklime, airing 5 ~ 8 days;

2. water filling: water filling in pond, the salinity of water is 20-23 ‰, and refreshes the water periodically in daily management afterwards, changes 1/5 ~ 1/3 of the former water yield at every turn;

3. pond: lay fine earth layer and also some rideaus are evenly set at the bottom of pond at the bottom of pond, soil layer sprinkles chad and plant on soil layer pond area 1/3 ~ 1/2 pasture and water;

4. steamed crab is put in a suitable place to breed: breeding density is 3 ~ 6/square metre;

5. feed: comprise natural feed and processing feed, described processing feed comprises fish meal, bean powder, bone meal, the animal chopped cooked entrails of sheep, green vegetables and oil.

Further, step 1. described in the area in pond be 1 ~ 10 mu.

Further, step 2. middle water layer thickness is 40 ~ 80 centimetres, and water temperature is 20 ~ 30 DEG C.

Further, step 3. in soil thickness be 8 ~ 15 centimetres.

Further, step 5. described in natural feed comprise in spiral shell, fish, shrimp, earthworm and moth one or more.

Further, step 5. described in process various composition in feed parts by weight be fish meal 10 ~ 15 parts, bean powder 15 ~ 20 parts, bone meal 4 ~ 7 parts, 3 ~ 5 parts, the animal chopped cooked entrails of sheep, green vegetables 3 ~ 5 parts and oil 0.5 ~ 1 part;

Further, described oil comprises animal oil and vegetable oil.

Further, described oil comprises the weight ratio of animal oil and vegetable oil is 1: 1.

Further, described animal oil is lard.

The invention provides a kind of cultural method of steamed crab, its beneficial effect mainly had is: the method makes steamed crab grow in an environment that is wide, simulating nature, and the steamed crab mouthfeel coordinating natural feed and processing feed to make to cultivate out is better, nutrition is abundanter, it is more close to wild steamed crab, is a kind of safe, healthy food; And be breeding scale due to it, therefore more economical relative to wild steamed crab price.

Embodiment

The cultural method of a kind of steamed crab described in the embodiment of the present invention.For specific experiment case, embodiment is described below, should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.

Embodiment

The cultural method of steamed crab: 1. build the pool: build pond, the area in described pond is 1 ~ 10 mu, as far as possible greatly a bit, steamed crab can be made to survive under a similar wild environment, make the more healthy sick rate of steamed crab lower, and its meat is better more healthy.The inwall at the bottom of pond and pond is at the bottom of cement and cement wall; And to clean up the pond disinfection with quicklime, after cleaning up the pond, airing 5 ~ 8 days under the sun, just could about a general week; 2. water filling: water filling in pond, the water layer thickness of institute's water filling or the degree of depth are 40 ~ 80 centimetres, and preferably 60 centimetres, water temperature is 20 ~ 30 DEG C, is more preferably 22 ~ 25 DEG C; The salinity of water is preferably 20-23 ‰, and refreshes the water periodically in daily management afterwards, within such as 2 ~ 5 days, changes once, changes 1/5 ~ 1/3 of the former water yield at every turn; 3. pond: lay fine earth layer at the bottom of pond, soil thickness is preferably 8 ~ 15 centimetres; And some rideaus are evenly set at the bottom of pond, concrete density can be determined according to actual conditions, can be between 1 ~ 10 meter and arranges a rideau; And on soil layer, sprinkle chad and plant on soil layer pond area 1/3 ~ 1/2 pasture and water, the density of chad can be 20 ~ 80/square metre; The size of this chad can be 1 ~ 10 cubic centimetre, specifically can determine according to actual conditions, and placement density also can be determined according to chad size; 4. steamed crab is put in a suitable place to breed: breeding density is 3 ~ 6/square metre; 5. feed: comprise natural feed and processing feed, described processing feed comprises fish meal, bean powder, bone meal, the animal chopped cooked entrails of sheep, green vegetables and oil.

As further preferred embodiment, step 5. described in natural feed comprise in spiral shell, fish, shrimp, earthworm and moth one or more, preferably include spiral shell, fish, shrimp, earthworm and moth, these natural feeds can spaced apartly be fed also can mix feeding, make the taste of the food of crab more various, increase its appetite and nutrition.

As further preferred embodiment, step 5. described in process various composition in feed part by weight be fish meal 10 ~ 15kg, bean powder 15 ~ 20kg, bone meal 4 ~ 7kg, the animal chopped cooked entrails of sheep 3 ~ 5kg, green vegetables 3 ~ 5kg and oil 0.5 ~ 1kg; More preferably, fish meal 13kg, bean powder 18kg, bone meal 6kg, animal chopped cooked entrails of sheep 4kg, green vegetables 4kg and oily 0.7kg.

As further preferred embodiment, described oil comprises animal oil and vegetable oil; The weight ratio of animal oil and vegetable oil is preferably 1: 1.Described animal oil is more preferably lard.

The present invention is not limited to above-mentioned preferred forms, anyone for the present invention any modification done under enlightenment of the present invention or change, and every have identical with the application or akin technical scheme, all drops within protection scope of the present invention.

Claims

1. a cultural method for steamed crab, is characterized in that: described cultural method comprises the following steps:

1. build the pool: build the pond at the bottom of a cement, the area in described pond is 1 ~ 10 mu; Clean up the pond with quicklime, airing 5 ~ 8 days;

2. the cultural method of steamed crab according to claim 1, is characterized in that: step 2. middle soil thickness is 8 ~ 15 centimetres.

3. the cultural method of steamed crab according to claim 1, is characterized in that: step 3. middle water layer thickness is 40 ~ 80 centimetres, and water temperature is 20 ~ 30 DEG C.

4. the cultural method of steamed crab according to claim 1, is characterized in that: step 5. described in natural feed comprise in spiral shell, fish, shrimp, earthworm and moth one or more.

5. the cultural method of steamed crab according to claim 1, is characterized in that: step 5. described in process various composition in feed parts by weight be fish meal 10 ~ 15 parts, bean powder 15 ~ 20 parts, bone meal 4 ~ 7 parts, 3 ~ 5 parts, the animal chopped cooked entrails of sheep, green vegetables 3 ~ 5 parts and oil 0.5 ~ 1 part.

6. the cultural method of steamed crab according to claim 5, is characterized in that: described oil comprises animal oil and vegetable oil.

7. the cultural method of steamed crab according to claim 6, is characterized in that: the weight ratio that described oil comprises animal oil and vegetable oil is 1: 1.

8. the cultural method of steamed crab according to claim 7, is characterized in that: described animal oil is lard.