LU502646B1 - Sustained-release pellet feed for rapid growth period of southward transplanted Apostichopus japonicus and its preparation method - Google Patents
Sustained-release pellet feed for rapid growth period of southward transplanted Apostichopus japonicus and its preparation method Download PDFInfo
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- 239000008188 pellet Substances 0.000 title claims abstract description 35
- 238000013268 sustained release Methods 0.000 title claims abstract description 35
- 239000012730 sustained-release form Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims description 15
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- 235000004252 protein component Nutrition 0.000 claims abstract description 18
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- 239000008107 starch Substances 0.000 claims abstract description 18
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 12
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- 229940088594 vitamin Drugs 0.000 claims abstract description 12
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- 108010010803 Gelatin Proteins 0.000 claims description 7
- 241000206581 Gracilaria Species 0.000 claims description 7
- 229920000161 Locust bean gum Polymers 0.000 claims description 7
- 241000243827 Nereis Species 0.000 claims description 7
- 241000269908 Platichthys flesus Species 0.000 claims description 7
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- 241000013298 Alpinia <beetle> Species 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
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- OUYCCCASQSFEME-UHFFFAOYSA-N tyrosine Natural products OC(=O)C(N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-UHFFFAOYSA-N 0.000 description 2
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- 235000016425 Arthrospira platensis Nutrition 0.000 description 1
- 241000512259 Ascophyllum nodosum Species 0.000 description 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
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- 241000199919 Phaeophyceae Species 0.000 description 1
- 108010073771 Soybean Proteins Proteins 0.000 description 1
- 241000196259 Ulva pertusa Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
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- 239000005667 attractant Substances 0.000 description 1
- 230000031902 chemoattractant activity Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005869 estivation Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
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- 230000035800 maturation Effects 0.000 description 1
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- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/80—Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/20—Animal feeding-stuffs from material of animal origin
- A23K10/22—Animal feeding-stuffs from material of animal origin from fish
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/20—Animal feeding-stuffs from material of animal origin
- A23K10/26—Animal feeding-stuffs from material of animal origin from waste material, e.g. feathers, bones or skin
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
- A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/158—Fatty acids; Fats; Products containing oils or fats
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/163—Sugars; Polysaccharides
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K40/00—Shaping or working-up of animal feeding-stuffs
- A23K40/10—Shaping or working-up of animal feeding-stuffs by agglomeration; by granulation, e.g. making powders
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K40/00—Shaping or working-up of animal feeding-stuffs
- A23K40/25—Shaping or working-up of animal feeding-stuffs by extrusion
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- Physiology (AREA)
- Molecular Biology (AREA)
- Health & Medical Sciences (AREA)
- Botany (AREA)
- Marine Sciences & Fisheries (AREA)
- Mycology (AREA)
- Biomedical Technology (AREA)
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- Insects & Arthropods (AREA)
- Feed For Specific Animals (AREA)
- Fodder In General (AREA)
Abstract
The invention discloses a sustained-release pellet feed for the rapid growth period of southward transplanted Apostichopus japonicus, which is characterized in that the feed is prepared by mixing the following components in percentage by mass: 40%-50% of protein component composition, 6%-8% of lipid component composition and starch component, 15%-25% of starch component composition, 0.5%-0.6% of multi-vitamin, 0.7%-0.8% of multi-mineral salt, 20%-25% of functional component composition and 1.0%-1.5% of biological adhesive.
Description
DESCRIPTION LU502646
Sustained-release pellet feed for rapid growth period of southward transplanted
Apostichopus japonicus and its preparation method
The invention relates to the field of marine culture, and in particular to a sustained-release pellet feed for the rapid growth period of southward transplanted Apostichopus japonicus, and a preparation method of the feed.
Apostichopus japonicus is one of the economic varieties of marine aquaculture in China.
Due to the limitation of natural distribution, the traditional cultured areas of A. japonicus in
China are mainly concentrated in the coastal areas around Liaodong and Shandong Peninsula, while the southern provinces mainly culture or catch other Holothurian species with relatively low economic value. In recent years, with the increase of market demand and considerable culturing benefits, there has been an upsurge of southward transplanted culture of A. japonicus in the east and south coastal areas of China (Jiangsu, Zhejiang, Fujian, Guangdong, Guangxi and
Hainan, etc.). Southward transplanted culture refers that the culturing production of 4. japonicus is carried out in the non-traditional producing areas and natural habitats along the coast of
China's waters south of 35°north latitude. This method solves the problem of slow growth of À. japonicus in winter, and shortens the cultivation and marketing cycle of finished A. japonicus.
Spring and autumn are the rapid growth periods of southward transplanted A. japonicus.
During this period, the demand for bait of southward transplanted A. japonicus continues to increase, and the natural bait can't meet its growth demand and production yield, so it is particularly necessary to supplement feeding. At the same time, in the early stage of rapid growth (after overwintering and aestivation), there are still some problems, such as weak physique of cultured A. japonicus, high requirements for feed nutrition supply level and supply continuity, etc. According to the ecological characteristics of culturing in the rapid growth period of southward transplanted A. japonicus, it is an effective method to develop the sustained-release pellet feed used in this period to obtain higher growth performance and yield, and to improve the culturing efficiency and economic benefits of southward transplanted A. japonicus.
SUMMARY LU502646
In order to solve the above shortcomings in the prior art, the invention provides a sustained-release pellet feed which can effectively promote the digestion, absorption and utilization of nutrients by cultured animals, and improve the growth performance, cultivation yield and economic benefits of southward transplanted Apostichopus japonicus, and also discloses a preparation method of the feed.
The technical solution of the invention is: a sustained-release pellet feed for the rapid growth period of southward transplanted A. japonicus, which is characterized in that the feed is prepared by mixing the following components in percentage by mass: 40%-50% of protein component composition, 6%-8% of lipid component composition, 15%-25% of starch component composition, 0.5%-0.6% of multi-vitamin, 0.7%-0.8% of multi-mineral salt, 20%-25% of functional component composition and 1.0%-1.5% of biological adhesive.
The protein component composition is composed of the following components in percentage by mass: 40%-55% of protein nutrition enhancing composition, 15%-25% of Hizikia fusifarme powder, 5%-8% of Porphyra powder, 15%-20% of Suaeda powder, 5%-6% of shrimp head powder and 2% -3% of Mytilus powder; the protein nutrition enhancing composition is prepared by mixing the following components according to the mass ratio:
Gracilaria powder: Salicornia powder: flounder hemline powder: Nereis powder=5:3:2:2.
The lipid component composition is prepared by mixing the following components according to the mass ratio: fish oil: palm oil: Suaeda seed oil =2:3:1.
The starch component composition is prepared by mixing the following components in percentage by mass: 40%-55% of bread crumbs, 25%-40% of biscuit crumbs and 15%-30% of corn germ powder.
The functional component composition is prepared by mixing the following components in percentage by mass: 5%-8% of Sepia visceral mass powder, 2%-3% of soy sauce residue powder, 20%-25% of digestion and absorption promoting composition, 60%-65% of bottom mud powder and 5% of Sepia inner shell powder;
the digestion and absorption promoting composition is prepared by mixing the following, 5026 46 components according to the mass ratio: hawthorn residue powder: orange peel powder: Alpinia Katsamdai powder =7:3:2.
The biological adhesive is prepared by mixing the following components according to the mass ratio: fish scale gelatin powder: locust bean gum powder =3:1.
A preparation method of sustained-release pellet feed for the rapid growth period of southward transplanted A. japonicus, characterized in that: superfine comminution of solid feed ingredients are carried out by 200-300 meshes, the pulverized ingredients are stirred and evenly mixed, then 55°C distilled water accounting for 20% of the solid ingredients is added to cure them, and lipid components accounting for 6%-8% of the solid ingredients are added in the curing process; the lipid component is prepared by mixing fish oil, palm oil and Suaeda seed oil according to the mass ratio of 2:3:1; after continuous stirring, it is extruded into crumby structure, and the materials are put into a granulator to prepare cylindrical pellet feed with a diameter of 3 mm-5 mm and a water content of 10%-12%; after sealing and packaging, the finished sustained-release pellet feed is prepared.
Compared with the existing technology, the invention has the following advantages:
The sustained-release pellet feed disclosed by the invention can provide high-level, special and continuous nutrition supply for the southward transplanted A. japonicus in the rapid growth period in spring and autumn, obviously improve the growth rate, body-wall weight ratio and other production performance of the southward transplanted A. japonicus in this specific period, and ensure the good aquaculture production effect in the rapid growth period. The protein nutrition-enhancing composition in the feed can provide high-level and enhanced nutrition supply for the southward transplanted A. japonicus in the rapid growth period, which significantly improves the production performance of southward transplanted A. japonicus in this period. However, specific components of promoting digestion and absorption can significantly enhance the digestion and absorption capacity of southward transplanted A. japonicus in the rapid growth period, and promote the improvement of the production performance of cultured animals. Meanwhile, the specific combination components of biological adhesive, through the scientific proportion and addition of biological adhesive, make the pellet feed of the invention obtain good sustained-release property, effectively prolong the feeding time of southward transplanted A. japonicus to feed, and improve the feed utilization rate.
The feed of the invention has simple preparation method and strong standardization and 5026 46 operability of technical process. Good palatability can be achieved through a single maturation technology, and the feed has a strong food attraction effect, so that the aggregation and tendency of southward transplanted A. japonicus to the feed of the invention are obvious. The main materials of this feed are pure natural animal and plant components, which will not cause eutrophication or chemical pollution of aquaculture water and surrounding sea areas during use, and it is a green and environment-friendly feed.
The specific embodiments of the present invention will be described below.
A sustained-release pellet feed for the rapid growth period of southward transplanted
Apostichopus japonicus is prepared by mixing the following components in percentage by mass: 40%-50% of protein component composition, 6%-8% of lipid component composition, 15%-25% of starch component composition, 0.5%-0.6% of multi-vitamin, 0.7%-0.8% of multi-mineral salt, 20%-25% of functional component composition and 1.0%-1.5% of biological adhesive.
The protein component composition is composed of the following components in percentage by mass: 40%-55% of protein nutrition enhancing composition, 15%-25% of Hizikia fusifarme powder, 5%-8% of Porphyra powder, 15%-20% of Suaeda powder, 5%-6% of shrimp head powder and 2% -3% of Mytilus powder; the protein nutrition enhancing composition is prepared by mixing the following components according to the mass ratio:
Gracilaria powder: Salicornia powder: flounder hemline powder: Nereis powder=5:3:2:2.
The lipid component composition is prepared by mixing the following components according to the mass ratio: fish oil: palm oil: Suaeda seed oil =2:3:1.
The starch component composition is prepared by mixing the following components in percentage by mass: 40%-55% of bread crumbs, 25%-40% of biscuit crumbs and 15%-30% of corn germ powder.
The functional component composition is prepared by mixing the following components in percentage by mass: 5%-8% of Sepia visceral mass powder, 2%-3% of soy sauce residue powder,
20%-25% of digestion and absorption promoting composition, 60%-65% of bottom mud powder 5026 46 and 5% of Sepia inner shell powder; the digestion and absorption promoting composition is prepared by mixing the following components according to the mass ratio:
Hawthorn residue powder: orange peel powder: Alpinia Katsamdai powder =7:3:2.
The biological adhesive is prepared by mixing the following components according to the mass ratio: fish scale gelatin powder: locust bean gum powder =3:1.
A preparation method of sustained-release pellet feed for the rapid growth period of southward transplanted A. japonicus, characterized in that: superfine comminution of solid feed ingredients are carried out by 200-300 meshes, the pulverized ingredients are stirred and evenly mixed, then 55°C distilled water accounting for 20% of the solid ingredients is added to cure them, and lipid components accounting for 6%-8% of the solid ingredients are added in the curing process; the lipid component is prepared by mixing fish oil, palm oil and Suaeda seed oil according to the mass ratio of 2:3:1; after continuous stirring, it is extruded into crumby structure,, and the materials are put into a granulator to prepare cylindrical pellet feed with a diameter of 3 mm-5 mm and a water content of 10%-12%; after sealing and packaging, the finished sustained-release pellet feed is prepared.
Embodiment 1
To prepare the sustained-release pellet feed for the rapid growth period of southward transplanted A. japonicus, the feed is prepared according to the proportion of 46% of protein component composition, 6.6% of lipid component composition, 20% of starch component composition, 0.5% of multi-vitamin, 0.7% of multi-mineral salt, 25% of functional component composition and 1.2% of biological adhesive component composition.
Protein component composition includes: 9% of Hizikia fusifarme powder (9% of the total mass, the same below), Porphyra powder 3%, 6% of Suaeda powder, 3% of shrimp head powder, 1% of Mytilus powder, and 24% of protein nutrition enhancing composition, while protein nutrition enhancing composition includes 10% of Gracilaria powder, 6% of Salicornia, 4% of flounder hemline powder and 4% of Nereis powder.
The lipid composition includes: 2.2% of fish oil (2.2% of the total mass, the same below), 3.3% of palm oil and 1.1% of Suaeda seed oil;
the starch composition includes: bread crumbs 10% (10% of the total mass, the same below) 5026 46 biscuit crumbs 6% and corn germ powder 4%.
The functional composition includes: 2% of Sepia viscera powder (2% of the total mass, the same below), 0.5% of soy sauce residue powder, 6% of specific composition for promoting digestion and absorption, 15% of bottom mud powder and 1.5% of Sepia inner shell powder; the specific composition for promoting digestion and absorption includes 3.5% of hawthorn residue powder, 1.5% of orange peel powder and 1% of Alpinia Katsamdai powder .
The biological adhesive composition includes: 0.9% of fish scale gelatin powder (0.9% of the total mass, the same below) and 0.3% of locust bean gum powder. According to the preparation method of the invention, the feed A is prepared by using the above ingredients.
Take the invented feed A for culturing contrast experiment:
The experiment lasted for 8 weeks and is carried out in the experimental enclosure of mariculture pond in spring. Enclosures are made of polyethylene mesh with a pore diameter of 0.5 cm, with an area of 16 m%/ind. (lengthx width =4 mx4 m), and each group deals with three parallel enclosures. The initial body mass of the experimental southward transplanted A. japonicus is 10. 4320.12 g, and stocking density is 5 ind./m’. The experimental southward transplanted A. japonicus are fed with the feed A, the formula feed B, the formula feed C and the formula feed D respectively, once a day at 17:00, and the daily feeding amount is calculated according to 6%-8% of the body weight of the cultured southward transplanted A. japonicus.
Formula feed B, formula feed C and formula feed D here are common commercial formula feeds.
Ingredient and proportion of formula feed B: 30 kg of Sargassum thunbergii powder, 22 kg of Sargassum Pallidum powder, 10 kg of degummed brown algae powder, 5 kg of fish powder, 4 kg of shrimp powder, 6 kg of soybean protein powder, 1.5 kg of shell powder, 0.6 kg of multi-vitamins, 0.9 kg of multi-minerals, 20 kg of sea mud powder (per 100 kg dry matter).
Ingredient and proportion of formula feed C: 30 kg of degummed kelp powder, 22 kg of
Sargassum Pallidum powder, 14 kg of Ulva pertusa powder, 5 kg of fish powder, 5 kg of flour, 2.0 kg of shell powder, 0.5 kg of multi-vitamins, 0.5 kg of multi-minerals and 21 kg of sea mud powder (per 100 kg of dry matter).
Ingredient and proportion of formula feed D: 48 kg of Sargassum thunbergii powder, 22 kg of Sargassum Pallidum powder, 4 kg of Spirulina powder, 3 kg of oyster shell powder, 2 kg of
Rhodotorula benthica powder, 0.5 kg of multi-vitamins, 0.5 kg of multi-minerals and 20 kg P5026 46 sea mud powder (per 100 kg of dry matter).
During the experiment, the water temperature of the pond is 12.2°C-22.5°C, the salinity is 26.8-33.2, the pH value is 8.0+0.3, the dissolved oxygen content is 6.28 mg/L-9.75 mg/L, and the ammonia nitrogen concentration is 0.06 mg/L-0.16 mg/L. The experimental results are shown in Table 1.
Table 1 Experimental results of feeding southward transplanted A. japonicus with different formula feeds (Embodiment 1)
Item Invented feed A Formula feed B Formula feed C Formula feed D
Daily specific 1.83 + 0.27" 1.12 + 0.19 0.87 + 0.15° 1.59 £0.13" growth rate
Wall body 632=+15 60.5 +14 59.4 + 2,3 62.8 + 2.0 weight ratio
Survival rate 97,2 +24 95.7 +3.1 92.6 + 4.6 93.5 + 3,3
Feed 1.07 + 0.05* 1.39 + 0.04° 1.68 + 0.07° 1.37 + 0.06° coefficient
Protease 2.88 + 0.06? 1.65 + 0.08° 1.57 + 0.05° 2.21 + 0.06° activity
Lipase activity 0.38 + 0.03* 0.25 + 0.04° 0.21 + 0.02° 0.27 + 0.04°
Note: Daily specific growth rate, %.d!; Wall body weight ratio, %; Survival rate, %; the protease activity is lug tyrosine produced by hydrolyzing casein per minute, which is one enzyme activity unit, ug/min; the lipase activity is 1umol fatty acid produced by catalysis per minute, which is 1 enzyme activity unit, umol/min.
Embodiment 2
To prepare the sustained-release pellet feed for the rapid growth period of southward transplanted A. japonicus, the feed is prepared according to the proportion of 50% of protein component composition, 6% of lipid component composition, 16.5% of starch component composition, 0.6% of multi-vitamins, 0.7% of multi-mineral salt, 25% of functional component composition and 1.2% of biological adhesive component composition.
Among them, the protein component composition includes: 27% of protein nutrition enhancing combination (27% of the total mass, the same below), 10% of Hizikia fusifarme powder, 2% of Porphyra powder, 7.5% of Suaeda powder, 2.5% of shrimp head powder and 1%
of Mytilus powder, the nutritional enhancement combination of protein includes 11.2% P5026 46
Gracilaria powder, 6.8% of Salicornia, 4.5% of flounder hemline powder and 4.5% of Nereis powder.
The lipid composition comprises: 2% of fish oil (2% of the total mass, the same below), 3% of palm oil and 1% of Suaeda seed oil.
The starch composition comprises 8% of bread crumb powder (8% of the total mass, the same below), 5% of biscuit crumb powder and 3.5% of corn germ powder.
The functional composition includes: 1.8% of Sepia viscera powder (1 .8% of the total mass, the same below), 0.6% of soy sauce residue powder, 6% of specific composition for promoting digestion and absorption, 15% of bottom mud powder and 1.6% of Sepia inner shell powder; the specific composition for promoting digestion and absorption comprises 3.5% of hawthorn residue powder, 1.5% of orange peel powder and 1% of Alpinia Katsamdai powder.
The specific biological adhesive composition comprises: 0.9% of fish scale gelatin powder (0.9% of the total mass, the same below) and 0.3% of locust bean gum powder.
According to the preparation method of the invention, the feed E is prepared by using the above ingredients.
To prepare the sustained-release pellet feed for the rapid growth period of southward transplanted A. japonicus, the feed is prepared according to the proportion of 42% of protein component composition, 6% of lipid component composition, 25% of starch component composition, 0.6% of multi-vitamin, 0.7% of multi-mineral salt, 24.5% of functional component composition and 1.2% of biological adhesive.
Among them, the protein component composition includes:16.8% of protein nutrition enhancing combination (16.8% of the total mass, the same below), 10.5% of Hizikia fusifarme powder, 3.2% of Porphyra powder, 8% of Suaeda powder, 2.5% of shrimp head powder and 1% of Mytilus powder, the nutritional enhancement combination of protein includes Gracilaria powder 7%, Salicornia 4.2%, flounder hemline powder 2.8% and Nereis powder 2.8%.
The lipid component composition comprises: 2% of fish oil (2% of the total mass, the same below), 3% of palm oil and 1% of Suaeda seed oil.
The starch component composition comprises 12% of bread crumb powder (12% of the total mass, the same below), 8% of biscuit crumb powder and 5% of corn germ powder.
The functional composition includes: 1.9% of Sepia viscera powder (1.9% of the total Mass, 502646 the same below), 0.7% of soy sauce residue powder, 4.9% of specific composition for promoting digestion and absorption, 15% of bottom mud powder and 2.0% of Sepia inner shell powder; the specific composition for promoting digestion and absorption comprises 2.9% of hawthorn residue powder, 1.2% of orange peel powder and 0.8% of Alpinia Katsamdai powder .
The specific biological adhesive composition comprises: 0.9% of fish scale gelatin powder (0.9% of the total mass, the same below) and 0.3% of locust bean gum powder.
According to the preparation method of the invention, the feed F is prepared by using the above raw materials.
A comparative sustained-release pellet feed is prepared, and the feed is prepared according to the proportion of 42% of protein component composition, 6% of lipid component composition, 25% of starch component composition, 0.6% of multi-vitamin, 0.7% of multi-mineral salt, 24.5% of functional component composition and 1.2% of biological adhesive.
Among them, the protein component composition comprises: Hizikia fusifarme powder 17.5% (17.5% of the total mass, the same below), Porphyra powder 3.2%, Suaeda powder 12.2%, shrimp head powder 5.3% and Mytilus powder 3.8%.
The lipid component composition comprises: 2% of fish oil (2% of the total mass, the same below), 3% of palm oil and 1% of Suaeda seed oil.
The starch component composition comprises: 12% of bread crumb powder (12% of the total mass, the same below), 8% of biscuit crumb powder and 5% of corn germ powder.
The functional component composition comprises: 3% of Sepia viscera powder (3% of the total mass, the same below), 1% of soy sauce residue powder, 17% of bottom mud powder and 3.5% of Sepia inner shell powder.
The biological adhesive component composition comprises 0.9% of fish scale gelatin powder (0.9% of the total mass, the same below) and 0.3% of locust bean gum powder.
According to the preparation method of the invention, the comparative sustained-release pellet feed G is prepared by using the above ingredients.
Take the finished feed for culturing contrast experiment; the experiment lasted for 8 weeks and is carried out in the experimental enclosure of mariculture pond in autumn. Enclosures are made of polyethylene mesh with a pore diameter of 0.5 cm, with an area of 16 m?/ind. (lengthxwidth =4 mx4 m), and each group deals with three parallel enclosures. The initial body mass of experimental southward transplanted A. japonicus (85026 46 15.03+0.28 g, and stocking density is 5 ind /m”. The experimental A. japonicus were fed with invented feed E, formula feed F and formula feed G respectively, once a day at 17:00, and the daily feeding amount is calculated according to 6%-8% of the body weight of the cultured animals. The pond water temperature is 22.1°C-11.4°C, salinity is 28.3-32.6, pH is 8.1+055, dissolved oxygen is 7.42 mg/L-9.98 mg/L, and the concentration of ammonia nitrogen is 0.04 mg/L-0.19 mg/L. The experimental results are shown in Table 2.
Table 2 Experimental results of feeding southward transplanted A. japonicus with different formula feeds (Embodiment 2)
Item Invented feed E Invented feed F Formula feedG
Daily specific 1.86 + 0.13* 1.75 + 0.24" 1.22 + 0.35 growth rate
Wall body weight 63.2+22 614+18 584 +2.7 ratio
Survival rate 95.3 + 3.1 98.1 + 2.6 92.7 +42
Feed coefficient 1.08 + 0.07% 1.10 + 0.05* 1.61 + 0.08
Protease activity 2.93 + 0.05* 2.77 + 0.08* 1.63 + 0.04°
Lipase activity 0.42 + 0.04 0.35+ 0.06 0.27 + 0.03
Note: Daily specific growth rate, %.d!; Wall body weight ratio, %; Survival rate, %; The protease activity is lug tyrosine produced by hydrolyzing casein per minute, which is one enzyme activity unit, ug/min; The lipase activity is 1umol fatty acid produced by catalysis per minute, which is 1 enzyme activity unit, umol/min.
Embodiment 3
According to the material formula, proportion and preparation method of Embodiment 1 of the invention, the invented feed A is prepared.
To prepare non-sustained-release pellet feed, the feed is prepared according to the proportion of 46% of protein component composition, 6.6% of lipid component composition, 21.2% of starch component composition, 0.5% of multi-vitamin, 0.7% of multi-mineral salt, 25% of functional component composition and 1.2% of biological adhesive.
Among them, the protein component composition comprises: 24% of protein nutrition enhancing composition (24% of the total mass, the same below), 9% of Hizikia fusifarme powder,
3% of Porphyra powder, 6% of Suaeda powder, 3% of shrimp head powder and 1% of Mytilus 5026 46 powder; the protein component composition comprises 10% of Gracilaria powder, 6% of
Salicornia, 4% of flounder hemline powder and 4% of Nereis powder;
The lipid component composition comprises: 2.2% of fish oil (2.2% of the total mass, the same below), 3.3% of palm oil and 1.1% of Suaeda seed oil,
The starch component composition comprises: 11% of bread crumb powder (11% of the total mass, the same below), 6% of biscuit crumbs powder and 4.2% of corn germ powder;
The functional composition includes: 2% of Sepia viscera powder (2% of the total mass, the same below), 0.5% of soy sauce residue powder, 6% of specific composition for promoting digestion and absorption, 15% of bottom mud powder and 1.5% of Sepia inner shell powder; the specific composition for promoting digestion and absorption includes: hawthorn residue powder 3.5%, orange peel powder 1.5% and A/pinia Katsamdai powder 1%.
According to the preparation method of the invention, the non-sustained-release comparative pellet feed I is prepared by using the above ingredients.
Take the finished feed for culturing contrast experiment;
The experiment lasted for 8 weeks and is carried out in the indoor controllable aquaculture research system. The experimental southward transplanted A. japonicus is cultured in PVC flume with a diameter of 1.0 m and a volume of 0.8 t, with three parallel flumes in each group. The initial body weight of the cultured animals is 5.35+0.12 g, and the culture density is 20 ind./m*.
The experimental A. japonicus is fed with the feed A of the invention and the comparative feed I respectively, once a day at 17:00, with the daily feeding amount accounting for 8% of the body weight of the cultured animals, and cleaned and changed with water twice a week. During the experiment, the physical and chemical conditions of aquaculture pond water quality in the fast growing period are simulated. Air pump is used for aeration, the water temperature is controlled at 15°C-18°C, the salinity fluctuated from 27.8-32.1, the average pH value is 7.9+0.3, and the ammonia nitrogen concentration varied from 0.02 mg/L-0.10 mg/L. The experimental results are shown in Table 3.
Table 3 Experimental results of feeding southward transplanted A. japonicus with sustained-release and non-sustained-release pellet feed (Embodiment 3)
Item Invented feed A Non-sustained-release pellet feed I
Daily specific 2.03 + 0.27* 1.28 + 0.15° LU502646 growth rate
Wall body weight 63.6 + 1.5 618+23 ratio
Survival rate 98.4 + 1,3 972+26
Feed dissolution rate 1.7 + 0.2* 12.4 + 1.2° 12h
Feed dissolution rate 5.3 + 0.5* 37.8 + 1.4° 24 h
Feed dissolution rate 23.6 + 13° 68.9+2.1° 36 h
Feed coefficient 1.10 + 0.05* 1.76 + 0.06°
Aggregation rate 12.3 + 2.5 5.9 + 1.2°
Note: Daily specific growth rate, %.d!; Wall body weight ratio, %; Survival rate, %; Feed dissolution rate, %; Aggregation rate, %.
The results of Table 1 show that, compared with other formula feeds, the growth rate of southward transplanted A. japonicus under the feed condition of the present invention is obviously faster, the activity of digestive enzymes (protease and lipase) is significantly higher, and the feed coefficient is significantly lower. The feed provided by the invention is a high-quality feed which may be used in the rapid growth period of southward transplanted A. japonicus in spring and autumn;
The results of Table 2 show that the growth rate and digestive enzyme (protease) activity of
A. japonicus fed with this feed are significantly higher than those of formula feed G, while its feed coefficient is significantly lower than that of formula feed G. This is mainly due to the fact that the formula feed G doesn't contain the specific combination components of protein nutrition enhancement and digestion and absorption promotion. The relevant results fully reflect the positive promotion and guarantee effects of the specific combination components in the feed of the invention on the production performance of southward transplanted A. japonicus in the rapid growth period;
The results of Table 3 show that the feed of the present invention has a good sustained-release effect, and it can keep a low dissolution rate in the aquaculture water within 24 h, which is in line with the feeding characteristics and rules of southward transplanted A.
japonicus. Meanwhile, the feed coefficient of the invention is low, the aggregation rate P5026 46 southward transplanted À. japonicus 1s high, the tendency is strong and utilization rate is high.
The above cultured comparative experiments show that the feed of the invention can provide high-level, effective and continuous nutrition supply for the southward transplanted A. japonicus in the rapid growth period in spring and autumn. Compared with other formula feeds, the feed of the invention can obviously improve the production performance of southward transplanted A. japonicus in a special growth period; the combination of protein nutrition enhancement and specific combination of promoting digestion and absorption in feed can obviously promote the growth performance and digestion and absorption ability of southward transplanted A. japonicus. The specific combination of biological adhesives makes the feed of the invention obtain good sustained release property, and together with strong attractant function (high aggregation rate), so that the feed realizes the sustained and effective nutrition supply to the southward transplanted A. japonicus, and ensure a good culture production effect; the preparation method of the feed of the invention is simple, the ingredients are pure natural animal and plant component, and the feed is a green and environment-friendly product. The feed provided by the invention is a high-quality sustained-release pellet feed which can be used in the rapid growth period of southward transplanted À. japonicus.
Claims (7)
1. À sustained-release pellet feed for the rapid growth period of southward transplanted Apostichopus japonicus, characterized in that the feed is prepared by mixing the following components in percentage by mass: 40%-50% of protein component composition, 6%-8% of lipid component composition, 15%-25% of starch component composition, 0.5%-0.6% of multi-vitamin, 0.7%-0.8% of multi-mineral salt, 20%-25% of functional component composition and 1.0%-1.5% of biological adhesive.
2. The sustained-release pellet feed for the rapid growth period of southward transplanted A. japonicus, according to 1, characterized in that the protein component composition is composed of the following components in percentage by mass: 40%-55% of protein nutrition enhancing composition, 15%-25% of Hizikia fusifarme powder, 5%-8% of Porphyra powder, 15%-20% of Suaeda, 5%-6% of shrimp head powder and 2%-3% of Mytilus powder; the protein nutrition enhancing composition is prepared by mixing the following components according to the mass ratio: Gracilaria powder: Salicornia powder: flounder hemline powder: Nereis powder=5:3:2:2.
3. The sustained-release pellet feed for the rapid growth period of southward transplanted A. japonicus according to 1, characterized in that the lipid component composition is prepared by mixing the following components according to the mass ratio: fish oil: palm oil: Suaeda seed oil =2:3:1.
4. The sustained-release pellet feed for the rapid growth period of southward transplanted A. japonicus according to 1, characterized in that the starch component composition is prepared by mixing the following components in percentage by mass: 40%-55% of bread crumbs, 25%-40% of biscuit crumbs and 15%-30% of corn germ powder.
5. The sustained-release pellet feed for the rapid growth period of southward transplanted A. japonicus according to 1, is characterized in that the functional component composition is prepared by mixing the following components in percentage by mass: 5%-8% of Sepia visceral mass powder, 2%-3% of soy sauce residue powder, 20%-25% of digestion and absorption promoting composition, 60%-65% of bottom mud powder and 5% of Sepia inner shell powder; the digestion and absorption promoting composition is prepared by mixing the following components according to the mass ratio:
hawthorn residue powder: orange peel powder: Alpinia Katsamdai powder =7:3:2. LU502646
6. The sustained-release pellet feed for the rapid growth period of southward transplanted A. japonicus according to 1, is characterized in that the biological adhesive is prepared by mixing the following components according to the mass ratio: fish scale gelatin powder: locust bean gum powder =3:1.
7. A preparation method of sustained-release pellet feed for the rapid growth period of southward transplanted A. japonicus according to 1, characterized in that: superfine comminution of solid feed ingredients are carried out by 200-300 meshes, the pulverized ingredients are stirred and evenly mixed, then 55°C distilled water accounting for 20% of the solid ingredients is added to cure them, and lipid components accounting for 6%-8% of the solid ingredients are added in the curing process; the lipid component is prepared by mixing fish oil, palm oil and Suaeda seed oil according to the mass ratio of 2:3:1; after continuous stirring, it is extruded into crumby structure, and the materials are put into a granulator to prepare cylindrical pellet feed with a diameter of 3 mm-5 mm and a water content of 10%-12%, after sealing and packaging, the finished sustained-release pellet feed is prepared.
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