阅读说明：本技术 一种提高鳗鱼高温期存活率和增重率的配合饲料及其制备方法 (Compound feed for improving survival rate and weight gain rate of eel in high temperature period and preparation method thereof ) 是由 何淑玲 孙耶宾 余建芳 马令法 杨敬军 常毓巍 于 2021-01-20 设计创作，主要内容包括：本发明公开了一种提高鳗鱼高温期存活率和增重率的配合饲料及其制备方法,涉及水产鱼类饲料技术领域,其技术方案要点是：以重量份计,包括以下组分：鱼粉20～30份、预糊化木薯淀粉25～35份、蝇蛆粉10～15份、甘薯粉4～5份、山楂粉2.5～5份、磷酸二氢钙1～1.5份、豆油5～6份、竹叶黄酮0.2～0.5份、甘草黄酮0.2～0.4份、葡萄籽提取物0.2～0.4份、胆汁酸0.2～0.6份、维生素混合物1～4份、矿物质混合物2～4份、中药提取剂5～15份、双歧杆菌1～5份和乳酸菌2～6份。本发明的配合饲料能够在鳗鱼生长的高温期促进其生长发育,且使鳗鱼消化吸收更好,能提高鳗鱼的增重率；同时,该配合饲料含有中药提取剂,能够增加鳗鱼免疫力,提高鳗鱼的存活率。(The invention discloses a compound feed for improving the survival rate and the weight gain rate of eel in a high temperature period and a preparation method thereof, relating to the technical field of aquatic fish feed, and the key points of the technical scheme are as follows: the coating comprises the following components in parts by weight: 20-30 parts of fish meal, 25-35 parts of pregelatinized cassava starch, 10-15 parts of fly maggot powder, 4-5 parts of sweet potato powder, 2.5-5 parts of hawthorn powder, 1-1.5 parts of monocalcium phosphate, 5-6 parts of soybean oil, 0.2-0.5 part of bamboo leaf flavone, 0.2-0.4 part of licorice flavone, 0.2-0.4 part of grape seed extract, 0.2-0.6 part of bile acid, 1-4 parts of vitamin mixture, 2-4 parts of mineral substance mixture, 5-15 parts of traditional Chinese medicine extractant, 1-5 parts of bifidobacterium and 2-6 parts of lactic acid bacteria. The compound feed can promote the growth and development of the eels in the high-temperature growth period of the eels, enables the eels to be better digested and absorbed, and can improve the weight gain rate of the eels; meanwhile, the compound feed contains the traditional Chinese medicine extractant, so that the immunity of the eel can be increased, and the survival rate of the eel can be improved.)

1. A compound feed for improving the survival rate and the weight gain rate of eel in the high temperature period is characterized in that: the coating comprises the following components in parts by weight: 20-30 parts of fish meal, 25-35 parts of pregelatinized cassava starch, 10-15 parts of fly maggot powder, 4-5 parts of sweet potato powder, 2.5-5 parts of hawthorn powder, 1-1.5 parts of monocalcium phosphate, 5-6 parts of soybean oil, 0.2-0.5 part of bamboo leaf flavone, 0.2-0.4 part of licorice flavone, 0.2-0.4 part of grape seed extract, 0.2-0.6 part of bile acid, 1-4 parts of vitamin mixture, 2-4 parts of mineral substance mixture, 5-15 parts of traditional Chinese medicine extractant, 1-5 parts of bifidobacterium and 2-6 parts of lactic acid bacteria;

the traditional Chinese medicine extractant comprises the following components in parts by weight: 2-12 parts of gentian, 4-12 parts of radix bupleuri, 2-10 parts of mango leaves, 2-14 parts of wild chrysanthemum flowers, 2-14 parts of paulownia flowers, 6-20 parts of semen plantaginis, 2-10 parts of honeysuckle, 5-20 parts of dark plum leaves, 10-50 parts of houttuynia cordata, 20-30 parts of common andrographis herbs, 5-30 parts of astragalus membranaceus, 1-5 parts of radix scrophulariae, 2-8 parts of radix rehmanniae, 7-15 parts of lemon juice and 8-15 parts of honey.

2. The compound feed for improving the survival rate and the weight gain rate of the eels in the high temperature period according to claim 1, which is characterized in that: the coating comprises the following components in parts by weight: 22-28 parts of fish meal, 27-30 parts of pregelatinized cassava starch, 10-15 parts of fly maggot powder, 4-5 parts of sweet potato powder, 3-4 parts of hawthorn powder, 1-1.5 parts of monocalcium phosphate, 5-6 parts of soybean oil, 0.3-0.4 part of bamboo leaf flavone, 0.3-0.4 part of licorice flavone, 0.3-0.4 part of grape seed extract, 0.4-0.5 part of bile acid, 2-4 parts of vitamin mixture, 3-4 parts of mineral substance mixture, 10-15 parts of traditional Chinese medicine extractant, 2-5 parts of bifidobacterium and 2-5 parts of lactic acid bacteria;

the traditional Chinese medicine extractant comprises the following components in parts by weight: 4-10 parts of felwort, 5-10 parts of radix bupleuri, 4-8 parts of mango leaves, 4-10 parts of wild chrysanthemum flowers, 4-10 parts of paulownia flowers, 8-17 parts of semen plantaginis, 4-8 parts of honeysuckle, 10-15 parts of dark plum leaves, 20-30 parts of houttuynia cordata, 20-25 parts of common andrographis herbs, 10-20 parts of astragalus membranaceus, 2-4 parts of radix scrophulariae, 2-6 parts of radix rehmanniae, 9-12 parts of lemon juice and 10-13 parts of honey.

3. The compound feed for improving the survival rate and the weight gain rate of the eels in the high temperature period according to claim 1, which is characterized in that: the coating comprises the following components in parts by weight: 25 parts of fish meal, 28 parts of pregelatinized cassava starch, 14 parts of fly maggot powder, 4.5 parts of sweet potato powder, 3.5 parts of hawthorn powder, 1.5 parts of monocalcium phosphate, 5.5 parts of soybean oil, 0.35 part of bamboo leaf flavone, 0.35 part of licorice flavone, 0.4 part of grape seed extract, 0.4-0.5 part of bile acid, 2-4 parts of vitamin mixture, 3-4 parts of mineral mixture, 10-15 parts of traditional Chinese medicine extractant, 2-5 parts of bifidobacterium and 2-5 parts of lactic acid bacteria;

the traditional Chinese medicine extractant comprises the following components in parts by weight: 4-10 parts of gentian, 5-10 parts of radix bupleuri, 4-8 parts of mango leaves, 4-10 parts of wild chrysanthemum flowers, 4-10 parts of paulownia flowers, 8-17 parts of semen plantaginis, 4-8 parts of honeysuckle, 10-15 parts of dark plum leaves, 20-30 parts of houttuynia cordata, 20-25 parts of common andrographis herbs, 10-20 parts of astragalus membranaceus, 2-4 parts of radix scrophulariae, 2-6 parts of radix rehmanniae, 10 parts of lemon juice and 12 parts of honey.

4. The method for preparing the compound feed for improving the survival rate and the weight gain rate of the eel in the high temperature period according to the claims 1 to 3, which is characterized in that: the method specifically comprises the following steps:

s1: weighing raw materials, and weighing the following components in parts by weight: 20-30 parts of fish meal, 25-35 parts of pregelatinized cassava starch, 10-15 parts of fly maggot powder, 4-5 parts of sweet potato powder, 2.5-5 parts of hawthorn powder, 1-1.5 parts of monocalcium phosphate, 5-6 parts of soybean oil, 0.2-0.5 part of bamboo leaf flavone, 0.2-0.4 part of licorice flavone, 0.2-0.4 part of grape seed extract, 0.2-0.6 part of bile acid, 1-4 parts of vitamin mixture, 2-4 parts of mineral substance mixture, 5-15 parts of traditional Chinese medicine extractant, 1-5 parts of bifidobacterium and 2-6 parts of lactic acid bacteria;

s2: uniformly mixing the fish meal, the pre-gelatinized cassava starch, the fly maggot powder, the sweet potato powder, the hawthorn powder and the monocalcium phosphate weighed in the step S1 to obtain powder;

s3: fully mixing the soybean oil, the bamboo leaf flavone, the licorice root flavone, the grape seed extract, the bile acid, the vitamin mixture, the mineral mixture, the traditional Chinese medicine extractant, the bifidobacterium and the lactic acid bacteria in the step S1 according to the parts by weight to obtain the following materials:

s4: adding deionized water and a forming agent into the material obtained in the step S3, fully dissolving the material into paste, adding the paste into a granulator to prepare round granules, and drying the round granules by using a dryer;

s5: spraying a layer of water mist on the surfaces of the round particles formed after drying in the step S4 to enable the surfaces of the round particles to be slightly wet, then mixing the powder obtained in the step S2 with the round particles to enable the powder to be uniformly coated on the outer surfaces of the round particles to obtain a finished compound feed product, and then packaging and sterilizing the finished compound feed product.

5. The method for preparing the compound feed for improving the survival rate and the weight gain rate of the eel in the high temperature period according to claim 4, which is characterized in that: in the step S4, the temperature for drying the round particles is 30-45 ℃, and the drying time is 12-24 hours.

6. The method for preparing the compound feed for improving the survival rate and the weight gain rate of the eel in the high temperature period according to claim 4, which is characterized in that: the preparation method of the traditional Chinese medicine extractant comprises the following steps:

1) weighing 2-12 parts of gentian, 4-12 parts of radix bupleuri, 2-10 parts of mango leaves, 2-14 parts of wild chrysanthemum flowers, 2-14 parts of paulownia flowers, 6-20 parts of semen plantaginis, 2-10 parts of honeysuckle, 5-20 parts of smoked plum leaves, 10-50 parts of houttuynia cordata, 20-30 parts of common andrographis herbs, 5-30 parts of astragalus membranaceus, 1-5 parts of radix scrophulariae and 2-8 parts of radix rehmanniae according to parts by weight;

2) adding weighed radix Gentianae, bupleuri radix, folium Mangiferae Indicae, flos Chrysanthemi Indici, flos Paulowniae, semen plantaginis, flos Lonicerae, folium mume, herba Houttuyniae, herba Andrographitis, radix astragali, radix scrophulariae, and radix rehmanniae into a rectifying tower, rectifying for 5-12 hr, and collecting the distillate;

3) adding the rectification liquid obtained in the step 2) into a concentration tank for concentration to obtain a concentrated material;

4) adding lemon juice and honey into the concentrated material obtained in the step 3), and uniformly stirring to obtain a traditional Chinese medicine ointment;

s5: transferring the Chinese medicinal ointment obtained in the step 4) into a dryer and drying to obtain the powdery Chinese medicinal extractant.

7. The method for preparing the compound feed for improving the survival rate and the weight gain rate of the eel in the high temperature period according to claim 4, which is characterized in that: the vitamin mixture in the step S1 comprises 0.66g of biotin, 120.02g of VBE, 9.23g of folic acid, 221.45g of inositol, 123.73g of nicotinic acid, 591.38g of pantothenic acid, 29.53g of riboflavin and 24g of thiamine.

8. The eel compound feed prepared by the method for preparing the compound feed for improving the survival rate and the weight gain rate of eels in the high temperature period according to claim 4.

Technical Field

The invention relates to the technical field of aquatic fish feed, in particular to a compound feed for improving the survival rate and the weight gain rate of eel in a high temperature period and a preparation method thereof.

Background

Eel, another name: eel, white eel, steamed bread, Japanese eel. Eel is a general name of species belonging to the order anguilla, also called eel, is a fish with the appearance similar to long-strip snake shape and has the basic characteristics of fish. Furthermore, eel has migration characteristics similar to salmon. Eel fishes are similar to snakes but have no scales and are generally produced in salt and fresh water boundary sea areas. Eel is mainly distributed in Yangtze river, Minjiang river, Zhujiang river basin, Hainan island and rivers and lakes in China. Eel spawns and breeds in deep sea and grows in fresh water environment. The sexual feeling is violent, the appetite is greedy, the movement is good, the daytime and night appear, the trend of optical rotation is strong, and the people like running water and warm.

The eel is rich in vitamin A and vitamin E, and the content of the eel is 60 times and 9 times of that of common fish. Wherein the vitamin A is 100 times of beef and more than 300 times of pork. The vitamin A and the vitamin E are rich, and the health care tea has great benefits for preventing visual deterioration, protecting the liver and restoring energy. Other vitamins such as vitamin B1 and vitamin B2 are also abundant. Eel also contains abundant "good" fat. The phospholipids contained therein are nutrients indispensable to brain cells. In addition, the eel also contains DHA and EPA (deep sea fish oil component, DHA is docosahexaenoic acid, EPA is eicosapentaenoic acid) which are commonly called as 'brain gold', the content is higher than that of other seafood and meat, and the DHA and EPA are proved to have important function of preventing cardiovascular diseases. In addition, eel also contains a large amount of calcium, and has certain effect of preventing osteoporosis. Most of all, the skin and meat of the eel are rich in collagen, so that the eel can maintain beauty and keep young and delay aging, and is called as an eatable cosmetic. The eel has the obvious defect in nutrition that vitamin C is hardly contained, and the defect can be compensated by matching with some vegetables when eating the eel. Eel has the effects of tonifying deficiency, nourishing blood, eliminating dampness, resisting tuberculosis and the like, and is a good nutrient for patients with long-term illness, weakness, anemia, pulmonary tuberculosis and the like. Eel contains a rare Xiheuoke protein in vivo, has good effects of strengthening essence and invigorating kidney, and is a health food for young couples and middle-aged and elderly people. The eel is a calcium-rich aquatic product, and can increase the blood calcium value and strengthen the body after being eaten frequently. The liver of eel is rich in vitamin A, and is a good food for people with night blindness.

However, because the eel has high nutritive value and medicinal value, the requirement of the cultured eel on the fed compound feed is high. At present, most of eel compound feeds in the prior art have poor effects on the aspects of increasing the survival rate of eels, reducing the morbidity and increasing the weight gain rate of eels for the growth of eels in a high-temperature period.

Therefore, the invention aims to design a compound feed for improving the survival rate and the weight gain rate of eel in the high temperature period and a preparation method thereof, so as to solve the problems.

Disclosure of Invention

The invention aims to provide a compound feed for improving the survival rate and the weight gain rate of eel in the high temperature period and a preparation method thereof, the compound feed can provide rich nutrient substances for the growth of eel in the high temperature period of the growth of eel, wherein bifidobacterium and lactobacillus provide beneficial bacteria for the eel, so that the eel can promote the growth and development in the growth process, and the effect of hawthorn powder is matched to ensure that the digestion and absorption effects of the eel are better, thereby being convenient for improving the weight gain rate of the eel; meanwhile, the traditional Chinese medicine extractant in the compound feed contains various substances, so that the immunity of the eel can be enhanced, the incidence probability of the eel is reduced, the traditional Chinese medicine extractant is supplemented with the components such as bifidobacterium, lactobacillus and the like, and the whole formula is cooperated, so that the compound feed which is more beneficial to the growth of the eel is obtained, and the survival rate of the eel is improved.

The technical purpose of the invention is realized by the following technical scheme: a compound feed for improving the survival rate and the weight gain rate of eel in the high temperature period comprises the following components in parts by weight: 20-30 parts of fish meal, 25-35 parts of pregelatinized cassava starch, 10-15 parts of fly maggot powder, 4-5 parts of sweet potato powder, 2.5-5 parts of hawthorn powder, 1-1.5 parts of monocalcium phosphate, 5-6 parts of soybean oil, 0.2-0.5 part of bamboo leaf flavone, 0.2-0.4 part of licorice flavone, 0.2-0.4 part of grape seed extract, 0.2-0.6 part of bile acid, 1-4 parts of vitamin mixture, 2-4 parts of mineral substance mixture, 5-15 parts of traditional Chinese medicine extractant, 1-5 parts of bifidobacterium and 2-6 parts of lactic acid bacteria;

the traditional Chinese medicine extractant comprises the following components in parts by weight: 2-12 parts of gentian, 4-12 parts of radix bupleuri, 2-10 parts of mango leaves, 2-14 parts of wild chrysanthemum flowers, 2-14 parts of paulownia flowers, 6-20 parts of semen plantaginis, 2-10 parts of honeysuckle, 5-20 parts of dark plum leaves, 10-50 parts of houttuynia cordata, 20-30 parts of common andrographis herbs, 5-30 parts of astragalus membranaceus, 1-5 parts of radix scrophulariae, 2-8 parts of radix rehmanniae, 7-15 parts of lemon juice and 8-15 parts of honey.

In order to better implement the invention, the invention further comprises the following components in parts by weight: 22-28 parts of fish meal, 27-30 parts of pregelatinized cassava starch, 10-15 parts of fly maggot powder, 4-5 parts of sweet potato powder, 3-4 parts of hawthorn powder, 1-1.5 parts of monocalcium phosphate, 5-6 parts of soybean oil, 0.3-0.4 part of bamboo leaf flavone, 0.3-0.4 part of licorice flavone, 0.3-0.4 part of grape seed extract, 0.4-0.5 part of bile acid, 2-4 parts of vitamin mixture, 3-4 parts of mineral substance mixture, 10-15 parts of traditional Chinese medicine extractant, 2-5 parts of bifidobacterium and 2-5 parts of lactic acid bacteria;

the traditional Chinese medicine extractant comprises the following components in parts by weight: 4-10 parts of felwort, 5-10 parts of radix bupleuri, 4-8 parts of mango leaves, 4-10 parts of wild chrysanthemum flowers, 4-10 parts of paulownia flowers, 8-17 parts of semen plantaginis, 4-8 parts of honeysuckle, 10-15 parts of dark plum leaves, 20-30 parts of houttuynia cordata, 20-25 parts of common andrographis herbs, 10-20 parts of astragalus membranaceus, 2-4 parts of radix scrophulariae, 2-6 parts of radix rehmanniae, 9-12 parts of lemon juice and 10-13 parts of honey.

In order to better implement the invention, the invention further comprises the following components in parts by weight: 25 parts of fish meal, 28 parts of pregelatinized cassava starch, 14 parts of fly maggot powder, 4.5 parts of sweet potato powder, 3.5 parts of hawthorn powder, 1.5 parts of monocalcium phosphate, 5.5 parts of soybean oil, 0.35 part of bamboo leaf flavone, 0.35 part of licorice flavone, 0.4 part of grape seed extract, 0.4-0.5 part of bile acid, 2-4 parts of vitamin mixture, 3-4 parts of mineral mixture, 10-15 parts of traditional Chinese medicine extractant, 2-5 parts of bifidobacterium and 2-5 parts of lactic acid bacteria;

the traditional Chinese medicine extractant comprises the following components in parts by weight: 4-10 parts of gentian, 5-10 parts of radix bupleuri, 4-8 parts of mango leaves, 4-10 parts of wild chrysanthemum flowers, 4-10 parts of paulownia flowers, 8-17 parts of semen plantaginis, 4-8 parts of honeysuckle, 10-15 parts of dark plum leaves, 20-30 parts of houttuynia cordata, 20-25 parts of common andrographis herbs, 10-20 parts of astragalus membranaceus, 2-4 parts of radix scrophulariae, 2-6 parts of radix rehmanniae, 10 parts of lemon juice and 12 parts of honey.

A preparation method of a compound feed for improving the survival rate and the weight gain rate of eel in a high temperature period specifically comprises the following steps:

s1: weighing raw materials, and weighing the following components in parts by weight: 20-30 parts of fish meal, 25-35 parts of pregelatinized cassava starch, 10-15 parts of fly maggot powder, 4-5 parts of sweet potato powder, 2.5-5 parts of hawthorn powder, 1-1.5 parts of monocalcium phosphate, 5-6 parts of soybean oil, 0.2-0.5 part of bamboo leaf flavone, 0.2-0.4 part of licorice flavone, 0.2-0.4 part of grape seed extract, 0.2-0.6 part of bile acid, 1-4 parts of vitamin mixture, 2-4 parts of mineral substance mixture, 5-15 parts of traditional Chinese medicine extractant, 1-5 parts of bifidobacterium and 2-6 parts of lactic acid bacteria;

s2: uniformly mixing the fish meal, the pre-gelatinized cassava starch, the fly maggot powder, the sweet potato powder, the hawthorn powder and the monocalcium phosphate weighed in the step S1 to obtain powder;

s3: fully mixing the soybean oil, the bamboo leaf flavone, the licorice root flavone, the grape seed extract, the bile acid, the vitamin mixture, the mineral mixture, the traditional Chinese medicine extractant, the bifidobacterium and the lactic acid bacteria in the step S1 according to the parts by weight to obtain the following materials:

s4: adding deionized water and a forming agent into the material obtained in the step S3, fully dissolving the material into paste, adding the paste into a granulator to prepare round granules, and drying the round granules by using a dryer;

s5: spraying a layer of water mist on the surfaces of the round particles formed after drying in the step S4 to enable the surfaces of the round particles to be slightly wet, then mixing the powder obtained in the step S2 with the round particles to enable the powder to be uniformly coated on the outer surfaces of the round particles to obtain a finished compound feed product, and then packaging and sterilizing the finished compound feed product.

In order to better implement the method, the temperature for drying the round particles in the step S4 is 30-45 ℃, and the drying time is 12-24 hours.

In order to better realize the invention, further, the preparation method of the traditional Chinese medicine extractant comprises the following steps:

1) weighing 2-12 parts of gentian, 4-12 parts of radix bupleuri, 2-10 parts of mango leaves, 2-14 parts of wild chrysanthemum flowers, 2-14 parts of paulownia flowers, 6-20 parts of semen plantaginis, 2-10 parts of honeysuckle, 5-20 parts of smoked plum leaves, 10-50 parts of houttuynia cordata, 20-30 parts of common andrographis herbs, 5-30 parts of astragalus membranaceus, 1-5 parts of radix scrophulariae and 2-8 parts of radix rehmanniae according to parts by weight;

2) adding weighed radix Gentianae, bupleuri radix, folium Mangiferae Indicae, flos Chrysanthemi Indici, flos Paulowniae, semen plantaginis, flos Lonicerae, folium mume, herba Houttuyniae, herba Andrographitis, radix astragali, radix scrophulariae and radix rehmanniae into a rectifying tower for rectification, and collecting the distillate after 5-12 hr rectification;

3) adding the rectification liquid obtained in the step 2) into a concentration tank for concentration to obtain a concentrated material;

4) adding lemon juice and honey into the concentrated material obtained in the step 3), and uniformly stirring to obtain a traditional Chinese medicine ointment;

s5: transferring the Chinese medicinal ointment obtained in the step 4) into a dryer and drying to obtain the powdery Chinese medicinal extractant.

In order to better implement the present invention, in step S1, the vitamin mixture includes biotin 0.66g, vb120.02g, folic acid 9.23g, inositol 221.45g, nicotinic acid 123.73g, pantothenic acid 591.38g, riboflavin 29.53g, and thiamine 24 g.

The action mechanism is as follows:

the invention provides a compound feed for improving the survival rate and the weight gain rate of eel in the high temperature period, which mainly comprises fish meal, pregelatinized cassava starch, fly maggot powder, sweet potato powder, hawthorn powder, monocalcium phosphate, soybean oil, bamboo leaf flavone, licorice flavone, grape pip extract, bile acid, a vitamin mixture, a mineral mixture, a traditional Chinese medicine extractant, bifidobacterium and lactobacillus.

In order to promote digestion and absorption of eels in the growth process and reduce the incidence probability of eels, a traditional Chinese medicine extracting agent is arranged in the components of the eels, the traditional Chinese medicine extracting agent mainly comprises gentian, radix bupleuri, mango leaves, wild chrysanthemum flowers, paulownia flowers, semen plantaginis, honeysuckle, dark plum leaves, houttuynia cordata, andrographis paniculata, astragalus membranaceus, radix scrophulariae, radix rehmanniae, lemon juice and honey, the traditional Chinese medicine extracting agent contains various substances, can enhance the immunity of eels and reduce the incidence probability of the eels, and the traditional Chinese medicine extracting agent is supplemented with bifidobacteria, lactic acid bacteria and other components, so that the whole formula is cooperated, a compound feed which is more beneficial to the growth of the eels is obtained, and the survival rate of the eels is.

In the common method for preparing the eel feed, a plurality of components are ground and crushed together and then stirred and mixed to form the eel feed, the eel feed prepared by the common method is very easy to disperse in water, and after dispersion, the eel has smaller effect of absorbing favorable components, and besides, the eel feed has certain pollution to the growth environment of the eel and is very unfavorable for the growth of the eel.

The inventor fully researches eel feed to obtain a set of preparation method which is beneficial to eel growth and convenient to absorb, and specifically comprises the steps of fully mixing bifidobacterium, lactobacillus, a vitamin mixture and a mineral mixture, adding water and a forming agent to enable the mixture to be micro-particles, manufacturing the particles by a granulator, preparing the particles into round particles, and drying the round particles by a dryer to enable the shape and the size of the round particles to be uniform, so that the subsequent eel can eat conveniently.

In addition, uniformly mixing the fish meal, the pre-gelatinized cassava starch, the fly maggot powder, the sweet potato powder, the hawthorn powder and the monocalcium phosphate to prepare powder, and coating the powder on the surface of the round particles.

The eel compound feed prepared by the preparation method of the invention is more beneficial to eel eating, is not easy to disperse in water, has relatively slow dispersion speed in water even if being dispersed, and is beneficial to keeping the eel growth environment clean.

In addition to the above, the traditional Chinese medicine extractant is added into the components of the compound feed prepared by the invention, so that the resistance of the eel is promoted, the eel grows more stably, and the survival rate of the eel is increased.

The invention has the beneficial effects that:

according to the invention, by arranging fish meal, pre-gelatinized cassava starch, fly maggot powder, sweet potato powder, hawthorn powder, calcium dihydrogen phosphate, soybean oil, bamboo leaf flavone, licorice flavone, grape seed extract, bile acid, vitamin mixture, mineral mixture, traditional Chinese medicine extractant, bifidobacterium, lactobacillus and other components, beneficial nutrient substances are provided for the growth of eel, the growth and development of eel are promoted, the digestion and absorption of eel are facilitated, and the weight gain rate of eel is improved conveniently; meanwhile, the traditional Chinese medicine extractant in the compound feed contains various substances, so that the immunity of the eel can be enhanced, the incidence probability of the eel is reduced, the traditional Chinese medicine extractant is supplemented with the components such as bifidobacterium, lactobacillus and the like, and the whole formula is cooperated, so that the compound feed which is more beneficial to the growth of the eel is obtained, and the survival rate of the eel is improved.

Drawings

FIG. 1 is a flow chart of the preparation in example 1 of the present invention.

Detailed Description

The technical solution of the present invention will be described below with reference to the embodiments of the present invention.

Example 1: a compound feed for improving the survival rate and the weight gain rate of eel in the high temperature period comprises the following components in parts by weight: 20 parts of fish meal, 25 parts of pregelatinized cassava starch, 12 parts of fly maggot powder, 4.5 parts of sweet potato powder, 3 parts of hawthorn powder, 1.5 parts of monocalcium phosphate, 5.5 parts of soybean oil, 0.4 part of bamboo leaf flavone, 0.3 part of licorice flavone, 0.3 part of grape seed extract, 0.4 part of bile acid, 2 parts of vitamin mixture, 2 parts of mineral mixture, 6 parts of traditional Chinese medicine extractant, 3 parts of bifidobacterium and 3 parts of lactic acid bacteria;

the traditional Chinese medicine extractant comprises the following components in parts by weight: 4 parts of gentian, 6 parts of radix bupleuri, 5 parts of mango leaves, 7 parts of wild chrysanthemum flowers, 7 parts of paulownia flowers, 8 parts of semen plantaginis, 6 parts of honeysuckle, 15 parts of dark plum leaves, 20 parts of houttuynia cordata, 25 parts of common andrographis herbs, 15 parts of astragalus membranaceus, 4 parts of radix scrophulariae, 5 parts of radix rehmanniae, 7 parts of lemon juice and 12 parts of honey.

A preparation method of compound feed for improving survival rate and weight gain rate of eel in high temperature stage is shown in figure 1, and specifically comprises the following steps:

s1: weighing raw materials, and weighing the following components in parts by weight: 20 parts of fish meal, 25 parts of pregelatinized cassava starch, 12 parts of fly maggot powder, 4.5 parts of sweet potato powder, 3 parts of hawthorn powder, 1.5 parts of monocalcium phosphate, 5.5 parts of soybean oil, 0.4 part of bamboo leaf flavone, 0.3 part of licorice flavone, 0.3 part of grape seed extract, 0.4 part of bile acid, 2 parts of vitamin mixture, 2 parts of mineral mixture, 6 parts of traditional Chinese medicine extractant, 3 parts of bifidobacterium and 3 parts of lactic acid bacteria;

s2: uniformly mixing the fish meal, the pre-gelatinized cassava starch, the fly maggot powder, the sweet potato powder, the hawthorn powder and the monocalcium phosphate weighed in the step S1 to obtain powder;

s3: fully mixing the soybean oil, the bamboo leaf flavone, the licorice root flavone, the grape seed extract, the bile acid, the vitamin mixture, the mineral mixture, the traditional Chinese medicine extractant, the bifidobacterium and the lactic acid bacteria in the step S1 according to the parts by weight to obtain the following materials:

s4: adding deionized water and a forming agent into the material obtained in the step S3, fully dissolving the material into paste, adding the paste into a granulator to prepare round granules, and drying the round granules by using a dryer;

s5: spraying a layer of water mist on the surfaces of the round particles formed after drying in the step S4 to enable the surfaces of the round particles to be slightly wet, then mixing the powder obtained in the step S2 with the round particles to enable the powder to be uniformly coated on the outer surfaces of the round particles to obtain a finished compound feed product, and then packaging and sterilizing the finished compound feed product.

The preparation method of the traditional Chinese medicine extractant comprises the following steps:

1) weighing 4 parts of gentian, 6 parts of radix bupleuri, 5 parts of mango leaves, 7 parts of wild chrysanthemum flowers, 7 parts of paulownia flowers, 8 parts of semen plantaginis, 6 parts of honeysuckle flowers, 15 parts of dark plum leaves, 20 parts of houttuynia cordata, 25 parts of common andrographis herbs, 15 parts of astragalus membranaceus, 4 parts of radix scrophulariae and 5 parts of radix rehmanniae according to the parts by weight;

2) adding weighed radix Gentianae, bupleuri radix, folium Mangiferae Indicae, flos Chrysanthemi Indici, flos Paulowniae, semen plantaginis, flos Lonicerae, folium mume, herba Houttuyniae, herba Andrographitis, radix astragali, radix scrophulariae and radix rehmanniae into a rectifying tower for rectification, and collecting the distillate after 5-6 hr rectification;

3) adding the rectification liquid obtained in the step 2) into a concentration tank for concentration to obtain a concentrated material;

4) adding 7 parts of lemon juice and 12 parts of honey into the concentrated material obtained in the step 3), and uniformly stirring to obtain a traditional Chinese medicine ointment;

s5: transferring the Chinese medicinal ointment obtained in the step 4) into a dryer and drying to obtain the powdery Chinese medicinal extractant.

Example 2: a compound feed for improving the survival rate and the weight gain rate of eel in the high temperature period comprises the following components in parts by weight: 25 parts of fish meal, 28 parts of pregelatinized cassava starch, 12 parts of fly maggot powder, 5 parts of sweet potato powder, 4 parts of hawthorn powder, 1.5 parts of monocalcium phosphate, 6 parts of soybean oil, 0.4 part of bamboo leaf flavone, 0.3 part of licorice flavone, 0.3 part of grape seed extract, 0.4 part of bile acid, 3 parts of vitamin mixture, 3 parts of mineral mixture, 8 parts of traditional Chinese medicine extractant, 3 parts of bifidobacterium and 3 parts of lactic acid bacteria;

the traditional Chinese medicine extractant comprises the following components in parts by weight: 6 parts of gentian, 8 parts of radix bupleuri, 8 parts of mango leaves, 10 parts of wild chrysanthemum flowers, 8 parts of paulownia flowers, 12 parts of semen plantaginis, 8 parts of honeysuckle, 16 parts of black plum leaves, 25 parts of houttuynia cordata, 28 parts of common andrographis herbs, 15 parts of astragalus membranaceus, 4 parts of radix scrophulariae, 5 parts of radix rehmanniae, 7 parts of lemon juice and 12 parts of honey.

A preparation method of compound feed for improving survival rate and weight gain rate of eel in high temperature stage is shown in figure 1, and specifically comprises the following steps:

s1: weighing raw materials, and weighing the following components in parts by weight: 25 parts of fish meal, 28 parts of pregelatinized cassava starch, 12 parts of fly maggot powder, 5 parts of sweet potato powder, 4 parts of hawthorn powder, 1.5 parts of monocalcium phosphate, 6 parts of soybean oil, 0.4 part of bamboo leaf flavone, 0.3 part of licorice flavone, 0.3 part of grape seed extract, 0.4 part of bile acid, 3 parts of vitamin mixture, 3 parts of mineral mixture, 8 parts of traditional Chinese medicine extractant, 3 parts of bifidobacterium and 3 parts of lactic acid bacteria;

s2: uniformly mixing the fish meal, the pre-gelatinized cassava starch, the fly maggot powder, the sweet potato powder, the hawthorn powder and the monocalcium phosphate weighed in the step S1 to obtain powder;

s3: fully mixing the soybean oil, the bamboo leaf flavone, the licorice root flavone, the grape seed extract, the bile acid, the vitamin mixture, the mineral mixture, the traditional Chinese medicine extractant, the bifidobacterium and the lactic acid bacteria in the step S1 according to the parts by weight to obtain the following materials:

s4: adding deionized water and a forming agent into the material obtained in the step S3, fully dissolving the material into paste, adding the paste into a granulator to prepare round granules, and drying the round granules by using a dryer;

s5: spraying a layer of water mist on the surfaces of the round particles formed after drying in the step S4 to enable the surfaces of the round particles to be slightly wet, then mixing the powder obtained in the step S2 with the round particles to enable the powder to be uniformly coated on the outer surfaces of the round particles to obtain a finished compound feed product, and then packaging and sterilizing the finished compound feed product.

The preparation method of the traditional Chinese medicine extractant comprises the following steps:

1) weighing 6 parts of gentian, 8 parts of radix bupleuri, 8 parts of mango leaves, 10 parts of wild chrysanthemum flowers, 8 parts of paulownia flowers, 12 parts of semen plantaginis, 8 parts of honeysuckle, 16 parts of dark plum leaves, 25 parts of houttuynia cordata, 28 parts of common andrographis herbs, 15 parts of astragalus membranaceus, 4 parts of radix scrophulariae and 5 parts of radix rehmanniae according to the parts by weight;

2) adding weighed radix Gentianae, bupleuri radix, folium Mangiferae Indicae, flos Chrysanthemi Indici, flos Paulowniae, semen plantaginis, flos Lonicerae, folium mume, herba Houttuyniae, herba Andrographitis, radix astragali, radix scrophulariae and radix rehmanniae into a rectifying tower for rectification, and collecting the distillate after rectification for 3-5 hr;

3) adding the rectification liquid obtained in the step 2) into a concentration tank for concentration to obtain a concentrated material;

4) adding 7 parts of lemon juice and 12 parts of honey into the concentrated material obtained in the step 3), and uniformly stirring to obtain a traditional Chinese medicine ointment;

s5: transferring the Chinese medicinal ointment obtained in the step 4) into a dryer and drying to obtain the powdery Chinese medicinal extractant.

Example 3: a compound feed for improving the survival rate and the weight gain rate of eel in the high temperature period comprises the following components in parts by weight: 30 parts of fish meal, 30 parts of pregelatinized cassava starch, 15 parts of fly maggot powder, 5 parts of sweet potato powder, 4 parts of hawthorn powder, 1.5 parts of monocalcium phosphate, 6 parts of soybean oil, 0.4 part of bamboo leaf flavone, 0.3 part of licorice flavone, 0.3 part of grape seed extract, 0.4 part of bile acid, 4 parts of vitamin mixture, 3 parts of mineral mixture, 10 parts of traditional Chinese medicine extractant, 3 parts of bifidobacterium and 3 parts of lactic acid bacteria;

the traditional Chinese medicine extractant comprises the following components in parts by weight: 8 parts of gentian, 9 parts of radix bupleuri, 8 parts of mango leaves, 12 parts of wild chrysanthemum flowers, 12 parts of paulownia flowers, 10 parts of plantain seeds, 8 parts of honeysuckle flowers, 15 parts of dark plum leaves, 30 parts of houttuynia cordata, 30 parts of common andrographis herbs, 20 parts of astragalus membranaceus, 5 parts of radix scrophulariae, 6 parts of radix rehmanniae, 7 parts of lemon juice and 12 parts of honey.

A preparation method of compound feed for improving survival rate and weight gain rate of eel in high temperature stage is shown in figure 1, and specifically comprises the following steps:

s1: weighing raw materials, and weighing the following components in parts by weight: 30 parts of fish meal, 30 parts of pregelatinized cassava starch, 15 parts of fly maggot powder, 5 parts of sweet potato powder, 4 parts of hawthorn powder, 1.5 parts of monocalcium phosphate, 6 parts of soybean oil, 0.4 part of bamboo leaf flavone, 0.3 part of licorice flavone, 0.3 part of grape seed extract, 0.4 part of bile acid, 4 parts of vitamin mixture, 3 parts of mineral mixture, 10 parts of traditional Chinese medicine extractant, 3 parts of bifidobacterium and 3 parts of lactic acid bacteria;

s2: uniformly mixing the fish meal, the pre-gelatinized cassava starch, the fly maggot powder, the sweet potato powder, the hawthorn powder and the monocalcium phosphate weighed in the step S1 to obtain powder;

s3: fully mixing the soybean oil, the bamboo leaf flavone, the licorice root flavone, the grape seed extract, the bile acid, the vitamin mixture, the mineral mixture, the traditional Chinese medicine extractant, the bifidobacterium and the lactic acid bacteria in the step S1 according to the parts by weight to obtain the following materials:

s4: adding deionized water and a forming agent into the material obtained in the step S3, fully dissolving the material into paste, adding the paste into a granulator to prepare round granules, and drying the round granules by using a dryer;

s5: spraying a layer of water mist on the surfaces of the round particles formed after drying in the step S4 to enable the surfaces of the round particles to be slightly wet, then mixing the powder obtained in the step S2 with the round particles to enable the powder to be uniformly coated on the outer surfaces of the round particles to obtain a finished compound feed product, and then packaging and sterilizing the finished compound feed product.

The preparation method of the traditional Chinese medicine extractant comprises the following steps:

1) weighing 8 parts of gentian, 9 parts of radix bupleuri, 8 parts of mango leaves, 12 parts of wild chrysanthemum flowers, 12 parts of paulownia flowers, 10 parts of semen plantaginis, 8 parts of honeysuckle, 15 parts of dark plum leaves, 30 parts of houttuynia cordata, 30 parts of common andrographis herbs, 20 parts of astragalus membranaceus, 5 parts of radix scrophulariae and 6 parts of radix rehmanniae according to the parts by weight;

2) adding weighed radix Gentianae, bupleuri radix, folium Mangiferae Indicae, flos Chrysanthemi Indici, flos Paulowniae, semen plantaginis, flos Lonicerae, folium mume, herba Houttuyniae, herba Andrographitis, radix astragali, radix scrophulariae and radix rehmanniae into a rectifying tower, rectifying for 4-6 hr, and collecting the distillate;

3) adding the rectification liquid obtained in the step 2) into a concentration tank for concentration to obtain a concentrated material;

4) adding 7 parts of lemon juice and 12 parts of honey into the concentrated material obtained in the step 3), and uniformly stirring to obtain a traditional Chinese medicine ointment;

s5: transferring the Chinese medicinal ointment obtained in the step 4) into a dryer and drying to obtain the powdery Chinese medicinal extractant.

Experimental data:

the mixed feed obtained from the mixed feed obtained in the above examples 1 to 3 was fed in different breeding ponds, the number of eels in the breeding ponds was 150, the sizes were all the same, after a period of feeding, the survival rate, the incidence rate and the weight growth rate of eels in each breeding pond were observed, and the specific results are shown in the following table:

	number of onset of disease	Probability of onset	Number of survivors	Probability of survival	Rate of body weight gain
						Experimental example 1	11	7.3％	139	92.7％	22％
Experimental example 2	9	6％	141	94％	24％
						Experimental example 3	10	6.6％	93	93.4％	25％

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.