CN110024907A - A kind of river crab fattening feed and its preparation method and application - Google Patents

A kind of river crab fattening feed and its preparation method and application Download PDF

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Publication number
CN110024907A
CN110024907A CN201910468400.8A CN201910468400A CN110024907A CN 110024907 A CN110024907 A CN 110024907A CN 201910468400 A CN201910468400 A CN 201910468400A CN 110024907 A CN110024907 A CN 110024907A
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China
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parts
river crab
fattening feed
powder
feed
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Inventor
强发旗
刘文斌
蒋广震
施恺
李嫔
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Jiangsu Haipurui Feed Co Ltd
Nanjing Agricultural University
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Jiangsu Haipurui Feed Co Ltd
Nanjing Agricultural University
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Priority to CN201910468400.8A priority Critical patent/CN110024907A/en
Publication of CN110024907A publication Critical patent/CN110024907A/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00Culture of aquatic animals
    • A01K61/50Culture of aquatic animals of shellfish
    • A01K61/59Culture of aquatic animals of shellfish of crustaceans, e.g. lobsters or shrimps
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K10/00Animal feeding-stuffs
    • A23K10/20Animal feeding-stuffs from material of animal origin
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K10/00Animal feeding-stuffs
    • A23K10/20Animal feeding-stuffs from material of animal origin
    • A23K10/22Animal feeding-stuffs from material of animal origin from fish
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K10/00Animal feeding-stuffs
    • A23K10/30Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K10/00Animal feeding-stuffs
    • A23K10/30Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
    • A23K10/37Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K20/00Accessory food factors for animal feeding-stuffs
    • A23K20/10Organic substances
    • A23K20/105Aliphatic or alicyclic compounds
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K20/00Accessory food factors for animal feeding-stuffs
    • A23K20/10Organic substances
    • A23K20/142Amino acids; Derivatives thereof
    • A23K20/147Polymeric derivatives, e.g. peptides or proteins
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K20/00Accessory food factors for animal feeding-stuffs
    • A23K20/10Organic substances
    • A23K20/158Fatty acids; Fats; Products containing oils or fats
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K20/00Accessory food factors for animal feeding-stuffs
    • A23K20/20Inorganic substances, e.g. oligoelements
    • A23K20/28Silicates, e.g. perlites, zeolites or bentonites
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K50/00Feeding-stuffs specially adapted for particular animals
    • A23K50/80Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish
    • Y02A40/818Alternative feeds for fish, e.g. in aquacultures
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • Y02P60/87Re-use of by-products of food processing for fodder production

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
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  • Food Science & Technology (AREA)
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  • Proteomics, Peptides & Aminoacids (AREA)
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  • Biodiversity & Conservation Biology (AREA)
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  • Fodder In General (AREA)

Abstract

The present invention provides a kind of river crab fattening feeds, belong to technical field of aquaculture, the river crab fattening feed includes the raw material of following parts by weight: 21~28 parts of fish meal, 18~25 parts of dregs of beans, 3~15 parts of cotton dregs, 3~15 parts of rapeseed meal, 8~12 parts of peanut meal, 4~8 parts of rice protein powder, 4~8 parts of corn protein powder, 3~5 parts of corn, 3~5 parts of fish oil, 3~10 parts of soya-bean oil, 0.5~1.5 part of soybean lecithin, 2~4 parts of globulin powder, 8~18 parts of flour, 1~3 part of zeolite powder, 1~1.5 part of shelling element, 0.5~1 part and 1~1.2 part of premix of capsorubin;Crude fat content >=11% in the river crab fattening feed.River crab fattening feed of the invention can promote river crab to develop, and promote the shelling of river crab maturation, additionally it is possible to improve river crab flavor.

Description

A kind of river crab fattening feed and its preparation method and application
Technical field
The present invention relates to technical field of aquaculture more particularly to a kind of river crab fattening feed and preparation method thereof and answer With.
Background technique
Eriocheir sinensis (Eriochersinensis) is the important economic cultivated crabs class in China, and yield is in rise year by year Gesture.According to FAO's data statistics, the yield of Chinese Eriocheir sinensis in 2016 has reached 812103 tons.Because of its meat It is delicious, full of nutrition, unique flavor, and liked by the majority of consumers.Specification, color, the plumpness of commodity crab are to evaluate it Quality evaluates the important indicator of its price.The artificial breeding of China river crab rapidly develops, from supporting, form to bringing up, support, river Crab aquaculture industry is fast-developing and tends to be mature, forms perfect industrial chain, and achieve huge economic benefit and society Benefit.
In crab farming development process, it experienced from single feed source (chilled fish, corn etc.) to hand fit The development course of feed.Currently, the good and bad jumbled together for various feed for river crab in the market, for river crab fattening period: cultivating third time at crab Shelling terminates to the river crab fattening feed of final listing (time is about August first arrival listing), be current feed for river crab research and development and One of key points and difficulties of application.
Fattening period feed for river crab needs to solve three major issues: 1) upper cream speed (hepatopancrease and property after river crab the 5th time shelling Gland);2) the crab cream filling degree (holding time) of river crab is finally listed;3) flavor quality at crab is listed.It is general currently on the market All over using at crab material, i.e., the rare river crab fattening feed that is exclusively used in is fattened.And existing river crab fattening feed function and effect are more single One, it not can solve the problem of encountering in production.For example, the patent that publication No. is CN107467408A discloses one kind River crab fattening feed formula, but the feed formula can only promote mature shell, realization is fattened as early as possible, is not directed to river crab The raising of flavor.
Summary of the invention
The purpose of the present invention is to provide a kind of river crab fattening feed and its preparation method and application, the river crab fattening feeds It can promote shelling, improve survival rate and improve river crab flavor.
In order to achieve the above-mentioned object of the invention, the present invention the following technical schemes are provided:
The present invention provides a kind of river crab fattening feed, the raw material including following parts by weight: 21~28 parts of fish meal, dregs of beans 18 ~25 parts, 3~15 parts of cotton dregs, 3~15 parts of rapeseed meal, 8~12 parts of peanut meal, 4~8 parts of rice protein powder, corn protein powder 4~8 Part, 3~5 parts of corn, 3~5 parts of fish oil, 3~5 parts of soya-bean oil, 0.5~1.5 part of soybean lecithin, 2~4 parts of globulin powder, face 8~18 parts of powder, 1~3 part of zeolite powder, 1~1.5 part of shelling element, 0.5~1 part and 1~1.2 part of premix of capsorubin;
Crude fat content >=11% in the river crab fattening feed.
Preferably, the river crab fattening feed includes the raw material of following parts by weight: 23~25 parts of fish meal, dregs of beans 21~24 Part, 5~10 parts of cotton dregs, 4~10 parts of rapeseed meal, 10~11 parts of peanut meal, 5~7 parts of rice protein powder, 5~7 parts of corn protein powder, 4~4.5 parts of corn, 4~4.5 parts of fish oil, 4~4.5 parts of soya-bean oil, 0.8~1.2 part of soybean lecithin, globulin powder 2.5~3 Part, 10~15 parts of flour, 1.5~2 parts of zeolite powder, 1.2~1.4 parts of shelling element, 0.6~0.8 part of capsorubin and premix 1.1 Part.
Preferably, the partial size of the river crab fattening feed is 2.5~4mm.
Preferably, moisture content≤12% of the river crab fattening feed.
The present invention also provides the preparation methods of the river crab fattening feed described in above scheme, comprising the following steps:
1) raw material of river crab fattening feed described in above scheme is mixed, is crushed, is sieved, component under collection screen obtains To mixed powder;
2) quenched to the progress of mixed powder described in step 1), obtain Curing material;
3) it pelletizes to Curing material described in step 2), it is dry, obtain river crab fattening feed.
Preferably, the mesh size of the sieving is 80~120 mesh.
Preferably, the quenched temperature is 85~90 DEG C;The quenched time is 20~40min.
The present invention also provides the river crab fattening feeds described in above scheme to promote the shelling of river crab maturation and improve river crab Application in hepatopancrease rate of development, gonad development speed.
The present invention also provides the river crab fattening feeds described in above scheme to improve the application in river crab survival rate.
The present invention also provides the river crab fattening feeds described in above scheme to improve the application in river crab flavor.
Beneficial effects of the present invention: the present invention provides a kind of river crab fattening feed, the raw materials including following parts by weight: fish 21~28 parts of powder, 18~25 parts of dregs of beans, 3~15 parts of cotton dregs, 3~15 parts of rapeseed meal, 8~12 parts of peanut meal, rice protein powder 4~8 Part, 4~8 parts of corn protein powder, 3~5 parts of corn, 3~5 parts of fish oil, 3~10 parts of soya-bean oil, 0.5~1.5 part of soybean lecithin, blood 2~4 parts of globulin powder, 8~18 parts of flour, 1~3 part of zeolite powder, 1~1.5 part of shelling element, 0.5~1 part of capsorubin and premix 1~1.2 part of material.The mass ratio of fish oil and soya-bean oil is set as 1:1~2 in the raw material of river crab fattening feed of the invention, while right Crude fat content >=11% in should being formulated, the increase of Measure Feed Crude Fat Content are conducive to the deposition of nutrient;The river crab fattening feed Raw material in addition capsorubin be conducive to the deposition of pigment.River crab fattening feed of the invention can be improved compared with chilled fish Eriocheir sinensis hepatopancrease rate of development and gonad development speed can be improved containing for aldehyde material in Eriocheir sinensis hepatopancrease Amount increases monosodium glutamate equivalence level, and obviously increases river crab delicate flavour and sweet taste.As it can be seen that river crab fattening feed of the invention can Promote river crab development, promotes the shelling of river crab maturation, additionally it is possible to improve river crab flavor.
Detailed description of the invention
Fig. 1 is to feed feed and ice fish to the Analyses Methods for Sensory Evaluation Results of river crab flavor.
Specific embodiment
The present invention provides a kind of river crab fattening feed, the raw material including following parts by weight: 21~28 parts of fish meal, dregs of beans 18 ~25 parts, 3~15 parts of cotton dregs, 3~15 parts of rapeseed meal, 8~12 parts of peanut meal, 4~8 parts of rice protein powder, corn protein powder 4~8 Part, 3~5 parts of corn, 3~5 parts of fish oil, 3~10 parts of soya-bean oil, 0.5~1.5 part of soybean lecithin, 2~4 parts of globulin powder, face 8~18 parts of powder, 1~3 part of zeolite powder, 1~1.5 part of shelling element, 0.5~1 part and 1~1.2 part of premix of capsorubin;It is preferred that , the river crab fattening feed includes the raw material of following parts by weight: 23~25 parts of fish meal, 21~24 parts of dregs of beans, and cotton dregs 5~10 Part, 4~10 parts of rapeseed meal, 10~11 parts of peanut meal, 5~7 parts of rice protein powder, 5~7 parts of corn protein powder, 4~4.5 parts of corn, 4~4.5 parts of fish oil, 4~9 parts of soya-bean oil, 0.8~1.2 part of soybean lecithin, 2.5~3 parts of globulin powder, 10~15 parts of flour, 1.5~2 parts of zeolite powder, 1.2~1.4 parts of shelling element, 0.6~0.8 part and 1.1 parts of premix of capsorubin.
In the present invention, the effect of the soybean lecithin is to adjust fat metabolism.
In the present invention, the premix is the general name of vitamin supplement object and mineral supplements, generally comprises 15 kinds of dimensions Inorganic microelement in raw element and 11.The present invention is not particularly limited the specific ingredient of the premix, normal using this field Advise premix.
In the present invention, the river crab fattening feed is preferably hard pellet diet or heavy property expanded pellet diet;The river crab fattening The partial size of feed is preferably 2.5~4mm, more preferably 3~3.5mm;The moisture content of the river crab fattening feed preferably≤ 12%.
In the present invention, the mass ratio of fish oil and soya-bean oil is set as 1:1~2 in the raw material of the river crab fattening feed, corresponding Crude fat content >=11% in formula, the increase of Measure Feed Crude Fat Content are conducive to the deposition of nutrient;The river crab fattening feed The deposition that capsorubin is conducive to pigment is added in raw material.
The present invention also provides the preparation methods of the river crab fattening feed described in above scheme, comprising the following steps:
1) raw material of river crab fattening feed described in above scheme is mixed, is crushed, is sieved, component under collection screen obtains To mixed powder;
2) quenched to the progress of mixed powder described in step 1), obtain Curing material;
3) it pelletizes to Curing material described in step 2), it is dry, obtain river crab fattening feed.
The present invention first mixes the raw material of river crab fattening feed described in above scheme, crushes, and sieving is mixed Powder;The present invention is not particularly limited the mixed time and temperature;The number of the crushing is preferably 1~3 time, more preferably It is 2 times;The present invention is not particularly limited the time of the crushing and temperature;The mesh size of the sieving is preferably 80~ 120 mesh, more preferably 100 mesh.
After obtaining mixed powder, the present invention is quenched to mixed powder progress, obtains Curing material;The quenched temperature is preferably 85 ~90 DEG C;The quenched time is preferably 20~40min, more preferably 30min;The quenched effect is so that mixed powder Sufficiently curing.
After obtaining Curing material, the present invention pelletizes to Curing material, dry, obtains river crab fattening feed.
The present invention preferably include thes steps that cooling before it is dried;The present invention does not have the time of the cooling and temperature It is specifically limited;The mode of the drying preferably air-dries;The present invention does not have special limit to the air-dried temperature, time, wind speed System, is subject to moisture content≤12% of river crab fattening feed after air-drying.
The present invention also provides the river crab fattening feeds described in above scheme to promote the shelling of river crab maturation and improve river crab Application in hepatopancrease rate of development, gonad development speed.
The present invention also provides the river crab fattening feeds described in above scheme to improve the application in river crab survival rate.
The present invention also provides the river crab fattening feeds described in above scheme to improve the application in river crab flavor;It is described to change Kind river crab flavor is preferably the sweet taste and delicate flavour for increasing river crab.
In the present invention, the river crab is preferably Eriocheir sinensis;The time of the application preferably cultivates the later period at crab, i.e., Third time shelling terminates, until terminating before listing;Or terminate to before listing to terminate in the 4th shelling.
Technical solution provided by the invention is described in detail below with reference to embodiment, but they cannot be understood For limiting the scope of the present invention.
A kind of river crab fattening feed of embodiment 1
Raw material composition: 21 parts by weight of fish meal, 20 parts by weight of dregs of beans, 4 parts by weight of cotton dregs, 5 parts by weight of rapeseed meal, 10 weight of peanut meal Amount part, 5 parts by weight of rice protein powder, 5 parts by weight of corn protein powder, 3 parts by weight of corn, 4 parts by weight of fish oil, 4 parts by weight of soya-bean oil, 1.5 parts by weight of soybean lecithin, 2 parts by weight of globulin powder, 12 parts by weight of flour, 1 parts by weight of zeolite powder, 1 weight of shelling element Part, 0.5 parts by weight of capsorubin and premix (herding Co., Ltd, animal Technological research institute purchased from Nanjing China) 1 parts by weight;
Preparation method: it is crushed after above-mentioned ingredient is slightly mixed through 2 times, is that material size sieves with 100 mesh sieve;It is mixed through mixing machine again After closing uniformly, 85 DEG C of quenched 30min, so that feed granules sufficiently cure;Then hard of 2.5mm diameter is prepared using granulator Grain feed;Feed granules cooling air-drying obtained is packaged as finished product to moisture near 10%.
A kind of river crab fattening feed of embodiment 2
Raw material composition: 25 parts by weight of fish meal, 21 parts by weight of dregs of beans, 5 parts by weight of cotton dregs, 4 parts by weight of rapeseed meal, 10 weight of peanut meal Amount part, 4 parts by weight of rice protein powder, 4 parts by weight of corn protein powder, 3 parts by weight of corn, 3 parts by weight of fish oil, 5 parts by weight of soya-bean oil, 1.5 parts by weight of soybean lecithin, 2 parts by weight of globulin powder, 8 parts by weight of flour, 1.5 parts by weight of zeolite powder, 1 weight of shelling element Part, 1 parts by weight of capsorubin and premix (herding Co., Ltd, animal Technological research institute purchased from Nanjing China) 1 parts by weight.
The preparation method is the same as that of Example 1.
A kind of river crab fattening feed of embodiment 3
Raw material composition: 28 parts by weight of fish meal, 18 parts by weight of dregs of beans, 3 parts by weight of cotton dregs, 3 parts by weight of rapeseed meal, 8 weight of peanut meal Amount part, 4 parts by weight of rice protein powder, 4 parts by weight of corn protein powder, 3 parts by weight of corn, 4 parts by weight of fish oil, 4 parts by weight of soya-bean oil, 1.5 parts by weight of soybean lecithin, 2 parts by weight of globulin powder, 16 parts by weight of flour, 1.5 parts by weight of zeolite powder, 1 weight of shelling element Measure part, 1 parts by weight of capsorubin and premix (herding Co., Ltd, animal Technological research institute purchased from Nanjing China) 1 parts by weight.
The preparation method is the same as that of Example 1.
The chilled fish of embodiment 4 compares culture experiment
1) test site
The cultivation place of indoor culture controllable recirculation system in Agricultural University Of Nanjing room, it is straight for cultivating water tank used Diameter 90cm, depth of water 60cm.
2) experimental design
Test is divided into 2 groups, respectively control group (feeding chilled fish), the feed group (river crab that feeding embodiment 2 is prepared Fattening feed), feeding volume is according to conventional arrangement, every group of 6 repetitions.Every to repeat to place 8 Eriocheir sinensis, male and female is fifty-fifty, examination It tests and starts individual weight 20g or so, cultivation terminates one week to the shelling of river crab the 5th.Control group feeds chilled fish, and feed group feeds reality Apply the river crab fattening feed that example 2 is prepared.Test river crab chooses the young crab for having taken off third shell.
After cultivation, sexual gland ratio, liver body ratio, muscle ratio and the (sexual gland+liver of difference measure and calculation each group Eriocheir sinensis It is dirty)/gross weight.
It the results are shown in Table 1, the results showed that, compared with chilled fish, the river crab fattening feed that embodiment 2 is prepared be can be improved Eriocheir sinensis hepatopancrease rate of development.
Table 1 feeds the influence of ice fish and feed to rigid de- 5 shell river crab sexual glands and liver body ratio
Embodiment 5
Commercial diet compares culture experiment
1) test site
The cultivation place of indoor culture in Agricultural University Of Nanjing's aquatic products teaching and scientific research base, cultivate pond used be 15 mu/ A standard pool mouthful.
2) experimental design
Test is divided into 2 pools mouthful, and respectively (river crab compound feed crab is good for peptide, raises purchased from Jiangsu sea Puri on the control pool mouthful Expect Co., Ltd
), the test pool mouthful (the river crab fattening feed that feeding embodiment 2 is prepared).The China that each cultivating pool is put in a suitable place to breed Eriocheir density is 2000/mu, and putting the seedling time is on 2 25th, 2018, and early period (before the shelling of third shell) two tests the pools mouthful Commercial goods feed is fed, after the shelling of third shell, control pool mouth continues to feed commercial diet, and the test pool mouthful feeds reality Apply the river crab fattening feed that example 2 is prepared, cultivation to listing mid-October (40 days after the shelling of the 5th shell).
After cultivation, sexual gland ratio, liver body ratio, muscle ratio and the (sexual gland+liver of difference measure and calculation each group Eriocheir sinensis It is dirty)/gross weight.
It the results are shown in Table 2, the results showed that, compared with commercial diet, the river crab fattening feed that embodiment 2 is prepared can be mentioned High Eriocheir sinensis hepatopancrease and gonad development speed.
The river crab fattening feed that table 2 feeds commercial diet and embodiment 2 is prepared is to rigid de- 5 shell river crab sexual glands
With the influence of liver body ratio
Embodiment 6
Chilled fish compares culture experiment
1) test site
The cultivation place of outdoor breeding in Agricultural University Of Nanjing's aquatic products teaching and scientific research base, cultivate pond used be 15 mu/ A standard pond.
2) experimental design
Test is divided into 2 groups, respectively control group (feeding chilled fish), the feed group (river crab that feeding embodiment 2 is prepared Fattening feed).The Eriocheir sinensis density that each cultivating pool is put in a suitable place to breed is 2000/mu, and putting the seedling time is 2 months 2018 25 Day, early period (before the shelling of third shell), two test pools mouthful fed commercial goods feed, after the shelling of third shell, started to throw Test process is fed, control group feeds chilled fish, and feed group feeds the river crab fattening feed that embodiment 2 is prepared, cultivation to 10 Middle of the month listing (40 days after the shelling of the 5th shell).And with 80 days collecting samples again after the shelling of the 5th shell, detect index of correlation.
After cultivation, sexual gland ratio, liver body ratio, muscle ratio and the (sexual gland+liver of difference measure and calculation each group Eriocheir sinensis It is dirty)/gross weight.Taste test is carried out, and detects hepatopancrease small molecular taste compound.
The result shows that Eriocheir sinensis can be improved in the river crab fattening feed that embodiment 2 is prepared compared with chilled fish Hepatopancrease rate of development and gonad development speed (being shown in Table 3, table 4).Compared with chilled fish, the river crab that embodiment 2 is prepared educates The content of aldehyde material in Eriocheir sinensis hepatopancrease can be improved in fertile feed, increases monosodium glutamate equivalence level, and make river crab delicate flavour (table 5, table 6, Fig. 1) is obviously increased with sweet taste.
Table 3 feeds the influence of ice fish and feed to 40 days river crab sexual glands and liver body ratio after the shelling of 5 shells
Table 4 feeds the influence of ice fish and feed to 80 days river crab sexual glands and liver body ratio after the shelling of 5 shells
Table 5 feeds the influence of feed and ice fish to river crab flavor
Table 6 feeds the influence of feed and ice fish to river crab flavor
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (10)

1. a kind of river crab fattening feed, the raw material including following parts by weight: 21~28 parts of fish meal, 18~25 parts of dregs of beans, cotton dregs 3~ 15 parts, 3~15 parts of rapeseed meal, 8~12 parts of peanut meal, 4~8 parts of rice protein powder, 4~8 parts of corn protein powder, 3~5 parts of corn, 3~5 parts of fish oil, 3~5 parts of soya-bean oil, 0.5~1.5 part of soybean lecithin, 2~4 parts of globulin powder, 8~18 parts of flour, zeolite 1~3 part of powder, 1~1.5 part of shelling element, 0.5~1 part and 1~1.2 part of premix of capsorubin;
Crude fat content >=11% in the river crab fattening feed.
2. river crab fattening feed according to claim 1, which is characterized in that the river crab fattening feed includes following weight The raw material of part: 23~25 parts of fish meal, 21~24 parts of dregs of beans, 5~10 parts of cotton dregs, 4~10 parts of rapeseed meal, 10~11 parts of peanut meal, greatly 5~7 parts of rice gluten powder, 5~7 parts of corn protein powder, 4~4.5 parts of corn, 4~4.5 parts of fish oil, 4~4.5 parts of soya-bean oil, soybean ovum Phosphatidase 0 .8~1.2 part, 2.5~3 parts of globulin powder, 10~15 parts of flour, 1.5~2 parts of zeolite powder, shelling element 1.2~1.4 Part, 0.6~0.8 part and 1.1 parts of premix of capsorubin.
3. river crab fattening feed according to claim 1 or 2, which is characterized in that the partial size of the river crab fattening feed is 2.5~4mm.
4. river crab fattening feed according to claim 3, which is characterized in that the moisture content of the river crab fattening feed≤ 12%.
5. the preparation method of river crab fattening feed described in Claims 1 to 4 any one, comprising the following steps:
1) raw material of the river crab fattening feed is mixed, is crushed, is sieved, component under collection screen obtains mixed powder;
2) quenched to the progress of mixed powder described in step 1), obtain Curing material;
3) it pelletizes to Curing material described in step 2), it is dry, obtain river crab fattening feed.
6. preparation method according to claim 5, which is characterized in that the mesh size of the sieving is 80~120 mesh.
7. preparation method according to claim 5 or 6, which is characterized in that the quenched temperature is 85~90 DEG C;It is described The quenched time is 20~40min.
8. river crab fattening feed described in Claims 1 to 4 any one is promoting the shelling of river crab maturation and is improving river crab liver pancreas Application in gland rate of development, gonad development speed.
9. river crab fattening feed described in Claims 1 to 4 any one is improving the application in river crab survival rate.
10. river crab fattening feed described in Claims 1 to 4 any one is improving the application in river crab flavor.
CN201910468400.8A 2019-05-31 2019-05-31 A kind of river crab fattening feed and its preparation method and application Pending CN110024907A (en)

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