CN104256173A - Special feed for xenocypris davidi bleeker juvenile fish and preparation method of special feed - Google Patents
Special feed for xenocypris davidi bleeker juvenile fish and preparation method of special feed Download PDFInfo
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Abstract
The invention discloses a special feed for xenocypris davidi bleeker juvenile fish. The special feed is prepared from the following components in parts by weight: 50-70 parts of alternanthera philoxeroides, 50-70 parts of eichharnia crassipes, 30-40 parts of peanut cakes, 30-40 parts of rapeseed cakes, 10-15 parts of crataegus pinnatifida, 10-15 parts of portulaca oleracea L, 2-6 parts of zanthoxylum nitidum, 2-6 parts of fructus cnidii, 3-7 parts of mints, 3-7 parts of ephedra sinica stapf, 1-3 parts of houttuynia cordata extracting liquid, 1-3 parts of dandelion extracting liquid and 1-2 parts of tenebrio molitor powder. According to the special feed for the xenocypris davidi bleeker juvenile fish, aquatic plants including alternanthera philoxeroides and eichharnia crassipes and the like serve as main raw materials of the feed and resources are abundant; a secondary fermentation process is used for treating so that the content of plant crude protein and crude fat in the feed can be greatly improved; meanwhile, animal protein tenebrio molitor powder is combined so that the nutrition is balanced; and the survival rate of the xenocypris davidi bleeker juvenile fish and the weight of adult fish are improved by feeding the fish with the special feed, the feed coefficient is reduced and the feed conversion rate is improved.
Description
Technical field
The invention belongs to field of feed, be specifically related to a kind of Xenocypris davidi juvenile fish special feed and preparation method thereof.
background technology
Xenocypris davidi is commonly called as yellow tail, pornographic movie, yellow Buddhist nun, cucumber fish etc., for Cyprinidae, Xenocyprininae, it is a kind of middle-size and small-size economic fish, live in the middle lower floor of water body, with the diatom that grows floating on water, the chip of water-bed humus and higher aquatic plants is food, be distributed widely in the Changjiang river, the Qiantang River, the water systems such as the Min River, from the 1950's, move into pond raise and train, succeed to artificial propagation at the beginning of the sixties, but its physique is delicate, edgy, anti-stress ability is poor, artificial propagation difficulty is larger, fail to form Seedling production in batches, in recent years, due to the pollution of overfishing and water environment, the output of Xenocypris davidi sharply declines, supply falls short of demand in market, cause propagating artificially of Xenocypris davidi more and more, for propagating artificially in process at present, the problem that Xenocypris davidi juvenile fish survival rate is low, studying more is the reproduction technique of Xenocypris davidi, and for adjusting the bait of Xenocypris davidi juvenile fish, to improving the survival rate of juvenile fish, the economic indicators such as increment, there are no report.
Summary of the invention
For problems of the prior art, the object of the invention is providing a kind of Xenocypris davidi juvenile fish special feed and preparation method thereof.
The present invention is realized by the following technical programs:
Described Xenocypris davidi juvenile fish special feed, is characterized in that being made up of the component of following parts by weight: water peanut 50-70 part, water hyacinth 50-70 part, peanut cake 30-40 part, rape cake 30-40 part, hawthorn 10-15 part, purslane 10-15 part, Radix zanthoxyli 2-6 part, frutus cnidii 2-6 part, peppermint 3-7 part, Chinese ephedra 3-7 part, Herba Houttuyniae extract 1-3 part, dandelion extract 1-3 part, yellow meal worm powder 1-2 part.
Described Xenocypris davidi juvenile fish special feed, is characterized in that being made up of the component of following parts by weight: water peanut 55-65 part, water hyacinth 55-60 part, peanut cake 32-38 part, rape cake 35-40 part, hawthorn 13-15 part, purslane 10-13 part, Radix zanthoxyli 3-5 part, frutus cnidii 3-5 part, peppermint 4-6 part, Chinese ephedra 4-6 part, Herba Houttuyniae extract 2-3 part, dandelion extract 2-3 part, yellow meal worm powder 1-2 part.
Described Xenocypris davidi juvenile fish special feed, is characterized in that being made up of the component of following parts by weight: water peanut 60 parts, water hyacinth 55 parts, 35 parts, peanut cake, rape cake 37 parts, hawthorn 14 parts, purslane 12 parts, Radix zanthoxyli 4 parts, frutus cnidii 4 parts, peppermint 5 parts, 5 parts, Chinese ephedra, Herba Houttuyniae extract 2 parts, dandelion extract 3 parts, 2 parts, yellow meal worm powder.
The preparation method of described Xenocypris davidi juvenile fish special feed, is characterized in that following these steps to carry out:
1) get respectively the water peanut herb of formula ratio, water hyacinth herb, purslane cauline leaf, Radix zanthoxyli cauline leaf, frutus cnidii cauline leaf, peppermint herb, Caulis Ephedrae stalk, haw berry clean after mix making beating, obtain mixed serum, stand-by;
2) get peanut cake and the rape cake of formula ratio, be uniformly mixed with mixed serum, obtain compound;
3) in step 2) inoculated aspergillus niger bacterial classification in obtained compound, inoculum concentration is 6%, in the temperature conditions bottom fermentation 35 hours of 30-35 DEG C after having inoculated, obtains one time fermentation material;
4) be inoculated in one time fermentation material by the composite bacteria liquid that lactic acid bacteria and saccharomycete are formed, inoculum concentration is 5%, anaerobic fermentation under normal temperature condition, and fermentation time is 6 days, obtains secondary fermentation material;
5) the dandelion herb getting formula ratio is placed in 60 DEG C of baking ovens dries, and pulverizes, and crosses 60 mesh sieves, and extract 1-5h with 75% alcohol heating reflux, extract is concentrated into ethanol and is evaporated completely, and obtains dandelion extract, stand-by;
6) get the cordate houttuynia herb of formula ratio, after grinding, by solid-liquid ratio 1:25(g/ml) add 80% ethanolic solution, reflux lixiviate 5-6 hour in 80 DEG C of water-baths, and leaching liquor is concentrated into ethanol and is evaporated completely, and obtains cordate houttuynia leaching liquor;
7), after being mixed with Herba Houttuyniae extract, dandelion extract, yellow meal worm powder by secondary fermentation material, oven dry, expanded, granulation, obtain the grains dedicated feed of Xenocypris davidi juvenile fish.
The preparation method of described Xenocypris davidi juvenile fish special feed, is characterized in that step 2) water content of compound is at 50-60%, and pH value is 5-7, and the thickness of compound is 30-35cm.
The preparation method of described Xenocypris davidi juvenile fish special feed, is characterized in that step 4) lactic acid bacteria and saccharomycetic ratio are 1:1.
The preparation method of described Xenocypris davidi juvenile fish special feed, it is characterized in that in step 7), bake out temperature is 45-55 DEG C, drying time is 30-50 minute.
The preparation method of described Xenocypris davidi juvenile fish special feed, is characterized in that the particle diameter of step 7) pellet is 0.2-0.5cm.。
The present invention adopts the higher aquatic plants such as water peanut and water hyacinth to be main feedstuff, and its aboundresources is cheap.Adopt secondary fermentation process, greatly can improve vegetalitas crude protein and crude fat content in feed, simultaneously in conjunction with animal protein yellow meal worm powder, guarantee that feed Middle nutrition is balanced, Xenocypris davidi juvenile fish demand to nutrition in growth course can be met; The combination of peanut cake, rape cake, hawthorn, purslane, while raising feed nutrient, effectively can improve the palatability of feed and improve the water holding capacity of fish body muscle in growth course and improve Meat Tenderness; Herba Houttuyniae extract and dandelion extract effectively can improve juvenile fish anti-virus ability in growth course; The interpolation of Radix zanthoxyli and frutus cnidii, effectively can improve fish body immunocompetence, and then prevent parasitic infection, the interpolation of peppermint and Chinese ephedra, can strengthen juvenile fish anti-stress ability; Feed water stability of the present invention is good, not easily pollute breeding water body water quality, feed of the present invention is adopted to feed, improve the survival rate of Xenocypris davidi juvenile fish and the body weight of adult fish, survival rate can reach more than 95%, body weight growth rate also reaches more than 160.6, reduces feed coefficient, improves food conversion ratio.
Detailed description of the invention
By following specific embodiment, the invention will be further described.
Embodiment 1
Xenocypris davidi juvenile fish special feed, is made up of the component of following parts by weight: water peanut 60 parts, water hyacinth 55 parts, 35 parts, peanut cake, rape cake 37 parts, hawthorn 14 parts, purslane 12 parts, Radix zanthoxyli 4 parts, frutus cnidii 4 parts, peppermint 5 parts, 5 parts, Chinese ephedra, Herba Houttuyniae extract 2 parts, dandelion extract 3 parts, 2 parts, yellow meal worm powder.
Preparation method is: 1) get respectively the water peanut herb of formula ratio, water hyacinth herb, purslane cauline leaf, Radix zanthoxyli cauline leaf, frutus cnidii cauline leaf, peppermint herb, Caulis Ephedrae stalk, haw berry clean after mix making beating, obtain mixed serum, stand-by; 2) get peanut cake and the rape cake of formula ratio, be uniformly mixed with mixed serum, obtain water content 55%, pH value is 6, and thickness is the compound of 33cm; 3) to inoculated aspergillus niger bacterial classification in compound, inoculum concentration is 6%, in the temperature conditions bottom fermentation 35 hours of 33 DEG C after having inoculated, obtains one time fermentation material; 4) lactic acid bacteria and saccharomycete are formed composite bacteria liquid according to the ratio mixing of 1:1, composite bacteria liquid is inoculated in one time fermentation material, and inoculum concentration is 5%, anaerobic fermentation under normal temperature condition, and fermentation time is 6 days, obtains secondary fermentation material; 5) the dandelion herb getting formula ratio is placed in 60 DEG C of baking ovens dries, and pulverizes, and crosses 60 mesh sieves, and extract 1-5h with 75% alcohol heating reflux, extract is concentrated into ethanol and is evaporated completely, and obtains dandelion extract, stand-by; 6) get the cordate houttuynia herb of formula ratio, after grinding, by solid-liquid ratio 1:25(g/ml) add 80% ethanolic solution, reflux lixiviate 5-6 hour in 80 DEG C of water-baths, and leaching liquor is concentrated into ethanol and is evaporated completely, and obtains cordate houttuynia leaching liquor; 7), after secondary fermentation material being mixed with Herba Houttuyniae extract, dandelion extract, yellow meal worm powder, under the temperature conditions of 50 DEG C, dry 40 minutes, expanded, granulation, obtain the grains dedicated feed of Xenocypris davidi juvenile fish that particle diameter is 0.1cm.
Embodiment 2
Xenocypris davidi juvenile fish special feed, is made up of the component of following parts by weight: water peanut 50 parts, water hyacinth 70 parts, 30 parts, peanut cake, rape cake 40 parts, hawthorn 10 parts, purslane 15 parts, Radix zanthoxyli 2 parts, frutus cnidii 6 parts, peppermint 3 parts, 7 parts, Chinese ephedra, Herba Houttuyniae extract 1 part, dandelion extract 3 parts, 2 parts, yellow meal worm powder.
Preparation method is: 1) get respectively the water peanut herb of formula ratio, water hyacinth herb, purslane cauline leaf, Radix zanthoxyli cauline leaf, frutus cnidii cauline leaf, peppermint herb, Caulis Ephedrae stalk, haw berry clean after mix making beating, obtain mixed serum, stand-by; 2) get peanut cake and the rape cake of formula ratio, be uniformly mixed with mixed serum, obtain water content 50%, pH value is 5, and thickness is the compound of 31cm; 3) to inoculated aspergillus niger bacterial classification in compound, inoculum concentration is 6%, in the temperature conditions bottom fermentation 35 hours of 35 DEG C after having inoculated, obtains one time fermentation material; 4) lactic acid bacteria and saccharomycete are formed composite bacteria liquid according to the ratio mixing of 1:1, composite bacteria liquid is inoculated in one time fermentation material, and inoculum concentration is 5%, anaerobic fermentation under normal temperature condition, and fermentation time is 6 days, obtains secondary fermentation material; 5) the dandelion herb getting formula ratio is placed in 60 DEG C of baking ovens dries, and pulverizes, and crosses 60 mesh sieves, and extract 1-5h with 75% alcohol heating reflux, extract is concentrated into ethanol and is evaporated completely, and obtains dandelion extract, stand-by; 6) get the cordate houttuynia herb of formula ratio, after grinding, by solid-liquid ratio 1:25(g/ml) add 80% ethanolic solution, reflux lixiviate 5-6 hour in 80 DEG C of water-baths, and leaching liquor is concentrated into ethanol and is evaporated completely, and obtains cordate houttuynia leaching liquor; 7), after secondary fermentation material being mixed with Herba Houttuyniae extract, dandelion extract, yellow meal worm powder, under the temperature conditions of 45 DEG C, dry 45 minutes, expanded, granulation, obtain the grains dedicated feed of Xenocypris davidi juvenile fish that particle diameter is 0.2cm.
Embodiment 3
Xenocypris davidi juvenile fish special feed, is made up of the component of following parts by weight: water peanut 70 parts, water hyacinth 50 parts, 40 parts, peanut cake, rape cake 30 parts, hawthorn 15 parts, purslane 10 parts, Radix zanthoxyli 6 parts, frutus cnidii 2 parts, peppermint 7 parts, 3 parts, Chinese ephedra, Herba Houttuyniae extract 3 parts, dandelion extract 1 part, 1 part, yellow meal worm powder.
Preparation method is: 1) get respectively the water peanut herb of formula ratio, water hyacinth herb, purslane cauline leaf, Radix zanthoxyli cauline leaf, frutus cnidii cauline leaf, peppermint herb, Caulis Ephedrae stalk, haw berry clean after mix making beating, obtain mixed serum, stand-by; 2) get peanut cake and the rape cake of formula ratio, be uniformly mixed with mixed serum, obtain water content 60%, pH value is 7, and thickness is the compound of 34cm; 3) to inoculated aspergillus niger bacterial classification in compound, inoculum concentration is 6%, in the temperature conditions bottom fermentation 35 hours of 31 DEG C after having inoculated, obtains one time fermentation material; 4) lactic acid bacteria and saccharomycete are formed composite bacteria liquid according to the ratio mixing of 1:1, composite bacteria liquid is inoculated in one time fermentation material, and inoculum concentration is 5%, anaerobic fermentation under normal temperature condition, and fermentation time is 6 days, obtains secondary fermentation material; 5) the dandelion herb getting formula ratio is placed in 60 DEG C of baking ovens dries, and pulverizes, and crosses 60 mesh sieves, and extract 1-5h with 75% alcohol heating reflux, extract is concentrated into ethanol and is evaporated completely, and obtains dandelion extract, stand-by; 6) get the cordate houttuynia herb of formula ratio, after grinding, by solid-liquid ratio 1:25(g/ml) add 80% ethanolic solution, reflux lixiviate 5-6 hour in 80 DEG C of water-baths, and leaching liquor is concentrated into ethanol and is evaporated completely, and obtains cordate houttuynia leaching liquor; 7), after secondary fermentation material being mixed with Herba Houttuyniae extract, dandelion extract, yellow meal worm powder, under the temperature conditions of 48 DEG C, dry 45 minutes, expanded, granulation, obtain the grains dedicated feed of Xenocypris davidi juvenile fish that particle diameter is 0.3cm.
Embodiment 4
Xenocypris davidi juvenile fish special feed, is made up of the component of following parts by weight: water peanut 55 parts, water hyacinth 60 parts, 32 parts, peanut cake, rape cake 40 parts, hawthorn 13 parts, purslane 13 parts, Radix zanthoxyli 3 parts, frutus cnidii 5 parts, peppermint 4 parts, 6 parts, Chinese ephedra, Herba Houttuyniae extract 2 parts, dandelion extract 3 parts, 1 part, yellow meal worm powder.
Preparation method is: 1) get respectively the water peanut herb of formula ratio, water hyacinth herb, purslane cauline leaf, Radix zanthoxyli cauline leaf, frutus cnidii cauline leaf, peppermint herb, Caulis Ephedrae stalk, haw berry clean after mix making beating, obtain mixed serum, stand-by; 2) get peanut cake and the rape cake of formula ratio, be uniformly mixed with mixed serum, obtain water content 58%, pH value is 5.5, and thickness is the compound of 35cm; 3) to inoculated aspergillus niger bacterial classification in compound, inoculum concentration is 6%, in the temperature conditions bottom fermentation 35 hours of 32 DEG C after having inoculated, obtains one time fermentation material; 4) lactic acid bacteria and saccharomycete are formed composite bacteria liquid according to the ratio mixing of 1:1, composite bacteria liquid is inoculated in one time fermentation material, and inoculum concentration is 5%, anaerobic fermentation under normal temperature condition, and fermentation time is 6 days, obtains secondary fermentation material; 5) the dandelion herb getting formula ratio is placed in 60 DEG C of baking ovens dries, and pulverizes, and crosses 60 mesh sieves, and extract 1-5h with 75% alcohol heating reflux, extract is concentrated into ethanol and is evaporated completely, and obtains dandelion extract, stand-by; 6) get the cordate houttuynia herb of formula ratio, after grinding, by solid-liquid ratio 1:25(g/ml) add 80% ethanolic solution, reflux lixiviate 5-6 hour in 80 DEG C of water-baths, and leaching liquor is concentrated into ethanol and is evaporated completely, and obtains cordate houttuynia leaching liquor; 7), after secondary fermentation material being mixed with Herba Houttuyniae extract, dandelion extract, yellow meal worm powder, under the temperature conditions of 52 DEG C, dry 35 minutes, expanded, granulation, obtain the grains dedicated feed of Xenocypris davidi juvenile fish that particle diameter is 0.2cm.
Embodiment 5
Xenocypris davidi juvenile fish special feed, is made up of the component of following parts by weight: water peanut 65 parts, water hyacinth 55 parts, 38 parts, peanut cake, rape cake 35 parts, hawthorn 15 parts, purslane 10 parts, Radix zanthoxyli 5 parts, frutus cnidii 3 parts, peppermint 6 parts, 4 parts, Chinese ephedra, Herba Houttuyniae extract 3 parts, dandelion extract 2 parts, 2 parts, yellow meal worm powder.
Preparation method is: 1) get respectively the water peanut herb of formula ratio, water hyacinth herb, purslane cauline leaf, Radix zanthoxyli cauline leaf, frutus cnidii cauline leaf, peppermint herb, Caulis Ephedrae stalk, haw berry clean after mix making beating, obtain mixed serum, stand-by; 2) get peanut cake and the rape cake of formula ratio, be uniformly mixed with mixed serum, obtain water content 53%, pH value is 6.5, and thickness is the compound of 32cm; 3) to inoculated aspergillus niger bacterial classification in compound, inoculum concentration is 6%, in the temperature conditions bottom fermentation 35 hours of 34 DEG C after having inoculated, obtains one time fermentation material; 4) lactic acid bacteria and saccharomycete are formed composite bacteria liquid according to the ratio mixing of 1:1, composite bacteria liquid is inoculated in one time fermentation material, and inoculum concentration is 5%, anaerobic fermentation under normal temperature condition, and fermentation time is 6 days, obtains secondary fermentation material; 5) the dandelion herb getting formula ratio is placed in 60 DEG C of baking ovens dries, and pulverizes, and crosses 60 mesh sieves, and extract 1-5h with 75% alcohol heating reflux, extract is concentrated into ethanol and is evaporated completely, and obtains dandelion extract, stand-by; 6) get the cordate houttuynia herb of formula ratio, after grinding, by solid-liquid ratio 1:25(g/ml) add 80% ethanolic solution, reflux lixiviate 5-6 hour in 80 DEG C of water-baths, and leaching liquor is concentrated into ethanol and is evaporated completely, and obtains cordate houttuynia leaching liquor; 7), after secondary fermentation material being mixed with Herba Houttuyniae extract, dandelion extract, yellow meal worm powder, under the temperature conditions of 55 DEG C, dry 30 minutes, expanded, granulation, obtain the grains dedicated feed of Xenocypris davidi juvenile fish that particle diameter is 0.1cm.
Feeding effect
Choose 600 urosome types even, body colour is normal, the long 3-4cm of body, the good Xenocypris davidi juvenile fish of vitality is as subjects, age in days 25-30 days, average weight 2.5g, 600 tail Xenocypris davidi juvenile fish are divided into 6 groups at random, be respectively test group 1, test group 2, test group 3, test group 4, test group 5, control group, raise 6 water quality respectively, in the pond that landform is identical, wherein, test group 1 is fed the formula forage of embodiment 1, test group 2 is fed the formula forage of embodiment 2, test group 3 is fed the formula forage of embodiment 3, test group 4 is fed the formula forage of embodiment 4, test group 5 is fed the formula forage of embodiment 5, the feed that the common market of control group fed is bought, feed intake every day number of times, inventory, charging time is all identical.After feeding 10 days, initial detecting is carried out to Xenocypris davidi juvenile fish, detects after feeding 90 days, each testing result in table 1, (it all calculates with the starting stage), wherein body weight growth rate (%)=(fish body end weight-fish body initial weight)/fish body initial weight * 100; Feed coefficient (%)=throwing forage volume/gain in weight.
Table 1
| ? | Amount of survival | Survival rate | Average weight | Body weight growth rate | Feed coefficient |
| Test group 1 | 99 | 99% | 50.2 | 180.2 | 1.23 |
| Test group 2 | 97 | 97% | 41.2 | 163.2 | 1.56 |
| Test group 3 | 95 | 95% | 40.3 | 160.6 | 1.61 |
| Test group 4 | 98 | 98% | 48.3 | 178.2 | 1.29 |
| Test group 5 | 98 | 98% | 47.6 | 176.3 | 1.31 |
| Control group | 68 | 68% | 35.1 | 140.5 | 1.95 |
As shown in Table 1, when natural conditions are identical, Xenocypris davidi juvenile fish special feed of the present invention is adopted to feed, compared with control group, the survival rate of fish and the body weight of adult fish can be significantly improved, reduce feed coefficient, improve feed conversion rate, and the feed adopting embodiment 1 to fill a prescription is fed, its indices is all better than the feeding effect of other Example formulations.
Claims (8)
1. Xenocypris davidi juvenile fish special feed, is characterized in that being made up of the component of following parts by weight: water peanut 50-70 part, water hyacinth 50-70 part, peanut cake 30-40 part, rape cake 30-40 part, hawthorn 10-15 part, purslane 10-15 part, Radix zanthoxyli 2-6 part, frutus cnidii 2-6 part, peppermint 3-7 part, Chinese ephedra 3-7 part, Herba Houttuyniae extract 1-3 part, dandelion extract 1-3 part, yellow meal worm powder 1-2 part.
2. Xenocypris davidi juvenile fish special feed according to claim 1, is characterized in that being made up of the component of following parts by weight: water peanut 55-65 part, water hyacinth 55-60 part, peanut cake 32-38 part, rape cake 35-40 part, hawthorn 13-15 part, purslane 10-13 part, Radix zanthoxyli 3-5 part, frutus cnidii 3-5 part, peppermint 4-6 part, Chinese ephedra 4-6 part, Herba Houttuyniae extract 2-3 part, dandelion extract 2-3 part, yellow meal worm powder 1-2 part.
3. Xenocypris davidi juvenile fish special feed according to claim 1, is characterized in that being made up of the component of following parts by weight: water peanut 60 parts, water hyacinth 55 parts, 35 parts, peanut cake, rape cake 37 parts, hawthorn 14 parts, purslane 12 parts, Radix zanthoxyli 4 parts, frutus cnidii 4 parts, peppermint 5 parts, 5 parts, Chinese ephedra, Herba Houttuyniae extract 2 parts, dandelion extract 3 parts, 2 parts, yellow meal worm powder.
4. the preparation method of Xenocypris davidi juvenile fish special feed, is characterized in that following these steps to carry out:
1) get respectively the water peanut herb of formula ratio, water hyacinth herb, purslane cauline leaf, Radix zanthoxyli cauline leaf, frutus cnidii cauline leaf, peppermint herb, Caulis Ephedrae stalk, haw berry clean after mix making beating, obtain mixed serum, stand-by;
2) get peanut cake and the rape cake of formula ratio, be uniformly mixed with mixed serum, obtain compound;
3) in step 2) inoculated aspergillus niger bacterial classification in obtained compound, inoculum concentration is 6%, in the temperature conditions bottom fermentation 35 hours of 30-35 DEG C after having inoculated, obtains one time fermentation material;
4) be inoculated in one time fermentation material by the composite bacteria liquid that lactic acid bacteria and saccharomycete are formed, inoculum concentration is 5%, anaerobic fermentation under normal temperature condition, and fermentation time is 6 days, obtains secondary fermentation material;
5) the dandelion herb getting formula ratio is placed in 60 DEG C of baking ovens dries, and pulverizes, and crosses 60 mesh sieves, and extract 1-5h with 75% alcohol heating reflux, extract is concentrated into ethanol and is evaporated completely, and obtains dandelion extract, stand-by;
6) get the cordate houttuynia herb of formula ratio, after grinding, by solid-liquid ratio 1:25(g/ml) add 80% ethanolic solution, reflux lixiviate 5-6 hour in 80 DEG C of water-baths, and leaching liquor is concentrated into ethanol and is evaporated completely, and obtains cordate houttuynia leaching liquor;
7), after being mixed with Herba Houttuyniae extract, dandelion extract, yellow meal worm powder by secondary fermentation material, oven dry, expanded, granulation, obtain the grains dedicated feed of Xenocypris davidi juvenile fish.
5. the preparation method of Xenocypris davidi juvenile fish special feed according to claim 4, is characterized in that step 2) water content of compound is at 50-60%, and pH value is 5-7, and the thickness of compound is 30-35cm.
6. the preparation method of Xenocypris davidi juvenile fish special feed according to claim 4, is characterized in that step 4) lactic acid bacteria and saccharomycetic ratio are 1:1.
7. the preparation method of Xenocypris davidi juvenile fish special feed according to claim 4, it is characterized in that in step 7), bake out temperature is 45-55 DEG C, drying time is 30-50 minute.
8. the preparation method of Xenocypris davidi juvenile fish special feed according to claim 4, is characterized in that the particle diameter of step 7) pellet is 0.2-0.5cm.
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Application publication date: 20150107 |