CN103931903A

CN103931903A - Feed additive for red crayfishes in rice field

Info

Publication number: CN103931903A
Application number: CN201410170410.0A
Authority: CN
Inventors: 奚业文; 王如峰; 凌武海; 王子舟
Original assignee: QUANJIAO CHIZHEN LOBSTER ECONOMIC PROFESSIONAL COOPERATION
Priority date: 2014-04-25
Filing date: 2014-04-25
Publication date: 2014-07-23
Anticipated expiration: 2034-04-25
Also published as: CN103931903B

Abstract

The invention provides a feed additive for red crayfishes in a rice field. The fodder additive is prepared from the following components in parts by weight: 1-3 parts of grape seeds, 1.5-4.5 parts of purple sweet potatoes, 1-3 parts of carrots and 1-3.5 parts of tomatoes. By feeding the crayfishes with raw materials rich in anthocyanin and trace elements, such as the grape seeds, the purple sweet potatoes, the carrots, the tomatoes, fresh small trashes and snail meat, plant natural pigments can be accumulated in bodies of the crayfishes through a food chain, so that the crayfish shells are purplish red and deep red, and simultaneously the rice and the crayfishes can resist high temperature, diseases, insects and changes of environmental factors in a mutualistic environment and also promote the growth mutually.

Description

The feed addictive of the red cream cray in a kind of rice field

technical field:

The invention belongs to technical field of aquaculture, specifically the feed addictive of the red cream cray of a kind of paddy field aquaculture.

background technology:

Procambius clarkii is subordinate to a joint animal door, Crustachia, former Astacus, has another name called cray.Its meat flavour deliciousness, nutritious, is loved by the people, and is the principal item of current shrimps aquaculture.Because the market demand sharply increases, Procambius clarkii natural resources sharply reduced in recent years, and price is progressively high, paddy field aquaculture area increases sharply, but the Procambius clarkii individuality of institute's output is less, color and luster is poor, and disease is more, and the economic benefit that raiser obtains is also poor.

Scientific research prove anthocyanidin content in cray body with its adaptation external ecology environmental change, to improve immunity of organisms, resist extraneous various germs etc. be all directly related.Cray self can not directly produce anthocyanidin, mainly uses the algae in water body by food chain, and constantly accumulation improves self anthocyanidin content.The cray body colour that anthocyanidin content is high is purplish red or peony, can be in the very poor place existence of environment.Under paddy field aquaculture environment, in order to ensure grain security, the cray algae that ingests from paddyfield water accumulates anthocyanidin and is nowhere near, and growth, the survival rate etc. of cray are all greatly affected.For paddy field aquaculture cray provides a kind of feed natural additive, ensure that cray can accumulate enough anthocyanidin etc., improve premunition, survival rate, the yield and quality of cray, obtain a kind of red cream cray.

The plant material that is rich in anthocyanidin by the fresh small fish of throwing something and feeding to cray, spiral shell meat, grape pip, purple potato, carrot and tomato etc., is gathered in cray body natural plant pigment by food chain, and cray shell is purplish red, peony.Color is darker, redder, and product are better mutually; Particularly crust color in carapace both sides must be yellow, grey; The shrimp cream of cray is aubergine.Red cream cray production marketing is worth higher.

Summary of the invention

The object of this invention is to provide the feed addictive of the red cream cray in a kind of rice field, improve resistance against diseases, the yield and quality of cray.

The object of the present invention is achieved like this:

A feed addictive for the red cream cray in rice field, described feed addictive is to be prepared from by weight by following component: grape pip 1-3 part, purple potato 1.5-4.5 part, carrot 1-3 part, tomato 1-3.5 part.

Preferred version is grape pip 1-2 part, purple potato 2-4 part, carrot 1-2 part, tomato 2-3 part.

The present invention, by being rich in the plant material grape pip of anthocyanidin, purple potato, carrot and tomato as feed addictive, improves the content of anthocyanidin in cray body.

Wherein grape pip contains 17 seed amino acids, vitamin B1, vitamin B2, choline and mineral matter etc.; can provide more comprehensive origin of amino acid for cray; induce it to ingest, can protect again cray somatic tissue to exempt from oxidative damage, improve its immunocompetence.Purple potato is rich in protein, starch, pectin, cellulose, amino acid, vitamine and several mineral materials, is also rich in selenium element and I element, quite 20 times of other potato class content simultaneously.Purple potato contains abundant anthocyanidin, is natural potent free radical scavenger, can strengthen the resistivity of cray to various diseases.Carrot is rich in calcium, iron, phosphorus, vitamin A, vitamin B1, vitamin B2, vitamin C 12, pectin, starch, inorganic salts and several amino acids.Can impel the normal shell of cray, growth .tomato be rich in Cobastab, protein,, the trace element such as folic acid, dietary fiber, vitamin A, carrotene, thiamine, riboflavin, vitamin C, vitamin E 0, calcium, phosphorus, iodine, magnesium, zinc.

Further, in described feed addictive, also comprise the fresh small fish of 3-5 part and 2-4 part spiral shell meat that shells.

Fresh small fish is as pseudorasbora parva, and it is rich in calcium, phosphorus, unrighted acid and each seed amino acid, is conducive to improve cray premunition, impels the smooth shell of cray.Spiral shell meat is rich in thiamine, riboflavin and delicate flavour amino acid, and has clearing away heat and promoting diuresis effect, strengthens cray premunition, increases nutrition and the delicious local flavor of cray.

Further, the addition of described feed addictive is the 3.5-9.5% that accounts for total feed weight.Additive is added in the conventional mixed feed of cray China hundred million boards 6913, then mix rear granulation, particle diameter is 1.0-2.0mm particle.

What feed addictive of the present invention adopted is natural plant raw material, its wide material sources, compatibility are reasonable, have advantages of that the cray physiological function of adjusting and balanced action, raising cray body special and non-specific immunity, raising cray digest and assimilate and utilize ability, improve the cray speed of growth and commercial sized prawn specification to feed.

advantage of the present invention is:

1, the present invention tests, summarizes to have and regulate immunity, improve premunition and can promote the natural materials of growth as feed addictive from multiple natural materials, and emphasis solves the paddy rice cray problem such as high temperature resistance, disease and insect resistance, the variation of anti-environmental factor and promotion growth under symbiosis environment; And effectively improve the immunity of cray, safe to cray.

2, feed addictive is common natural materials, easily obtains, cheap, can not increase feed cost; More can not make cray produce drug resistance, drug residue free, meets the standard of green health food, can not have a negative impact to the healthy of consumer;

3, the shrimp shell Chinese red of cray, shrimp cream aubergine, be rich in anthocyanidin, and various diseases is had to preventive and therapeutic action, be current disease preventing and treating, safeguard human health the most directly, the most effective, safest " free radical scavenger ", useful to health;

4, enriching plant natural colouring matter, makes processing cray later more can attract consumer, particularly teenager, is conducive to further expand the consumption market of cray.

detailed description of the invention:

Below by concrete red cream cray production instance, the present invention will be further described.

By grape pip 1-3 part, purple potato 1.5-4.5 part, carrot 1-3 part, tomato 1-3.5 part, fresh small fish 3-5 part is made pulvis with shelling after spiral shell meat 2-4 part dries separately, shatters, and then mixes compositely, makes rice field red cream cray feed addictive.

By weight percentage, the feed addictive 3.5-9.5% that gets above-mentioned preparation directly joins in the conventional mixed feed of 96.5-90.5% cray China hundred million boards 6913, granulation after mixing, and particle diameter is 1.0-2.0mm particle.

During feedstuff feeding, from the Waking of Insects (3rd solar term) then after solar term, temperature is stabilized in more than 12 DEG C and starts to throw something and feed, and to japonica rice shoot transplanting equipment, finishes, and adds up to and throws something and feeds 40～60 days; The feeding volume of red cream cray feed: according to weather and water temperature situation, be controlled at 3.5%～5.5% of cray parental population weight; The bait feeding time: the bait throwing in time is between the lights, light starts to throw something and feed while becoming darker, once a day.

Within first 10 days, start to fish for by cage in japonica rice shoot transplanting equipment, to the cray computation weigh of harvesting, result of the test adopts quantity statistics method processing.

The weight portion of each component shown according to the form below 1 is prepared respectively five feed addictives and is added in the conventional mixed feed of cray China hundred million boards 6913 as five test group.Establish a control group, wherein control group all adopts magnificent hundred million boards 6913 simultaneously.The impact of the different proportion feed addictive cray of throwing something and feeding cultivation result, as shown in table 2.Every group is repeated 3 times.

Table 1: feed each component proportioning

Table 2: experimental group and control group are respectively to cray cultivation result situation

	The incidence of disease (%)	Survival rate (%)	Per unit area yield (kg/ mu)	Shrimp cream color	Shrimp shell color	Rice yield (kg/ mu)
							Control group is average	35.6	65.57	43.83			533.26
Test group 1	6.1	93.9	57.5	Aubergine	Chinese red	536.25
							Test group 2	5.2	94.8	56.5	Aubergine	Chinese red	534.42
Test group 3	5.6	94.4	56.15	Aubergine	Chinese red	536.15
							Test group 4	5.5	94.5	54.5	Aubergine	Chinese red	535.48
Test group 5	5.6	94.4	56.1	Aubergine	Chinese red	538.46
							Test group is average	5.6	94.4	56.15	Aubergine	Chinese red	536.15

Show from upper table 2 testing result, the cray average attack rate 5.6% of test group 1-5 cultivation, cray average attack rate 35.6% in control group, difference is (P < 0.01) extremely significantly; The cray average survival 94.4% of test group 1-5 cultivation, control group average survival 65.57%, difference is (P < 0.01) extremely significantly; The average per unit area yield 56.15kg of cray of test group 1-5 cultivation, the average per unit area yield 43.83 of control group, difference is (P < 0.01) extremely significantly; The average per unit area yield 536.15kg of paddy rice of test group 1-5 cultivation, the average per unit area yield 533.26kg of control group, difference is remarkable (P > 0.05) not, does not affect the output of paddy rice rice terrace cultivation cray, and its Rice Production is carried out by " southern round-grained rice 5055 " planting technology code.

So the raw material of anthocyanidin, trace element is rich in the present invention by the grape pip of throwing something and feeding to cray, purple potato, carrot, tomato, fresh small fish and spiral shell meat etc., by food chain, natural plant pigment is gathered in cray body, cray shell is purplish red, peony.Color is darker, redder, and product are better mutually; Particularly crust color in carapace both sides must be yellow, grey; The shrimp cream of cray is aubergine.Red cream cray production marketing is worth higher, is 2～3 times of common cray prices, remarkable in economical benefits.

Claims

1. a feed addictive for the red cream cray in rice field, is characterized in that: described feed addictive is to be prepared from by weight by following component: grape pip 1-3 part, purple potato 1.5-4.5 part, carrot 1-3 part, tomato 1-3.5 part.

2. feed addictive according to claim 1, is characterized in that: grape pip 1-2 part, purple potato 2-4 part, carrot 1-2 part, tomato 2-3 part.

3. feed addictive according to claim 1 and 2, is characterized in that: also comprise the fresh small fish of 3-5 part and 2-4 part spiral shell meat that shells.

4. feed addictive according to claim 1 and 2, is characterized in that: the addition of described feed addictive is the 3.5-9.5% that accounts for total feed weight.

5. feed addictive according to claim 3, is characterized in that: the addition of described feed addictive is the 3.5-9.5% that accounts for total feed weight.