阅读说明：本技术 一种软颗粒饲料及其制备方法和应用 (Soft pellet feed and preparation method and application thereof ) 是由 黄伟卿 阮少江 林小金 王永贵 谢友佺 张艺 林培华 臧蔓 施蕾 于 2019-10-18 设计创作，主要内容包括：本发明提供一种软颗粒饲料及其制备方法和应用,该饲料按照重量份的组成包括：牡蛎20~30份、玉米粉50~60份、复合多维1~5份、胡萝卜素2~8份、琼脂粉5~10份、抗菌肽0.1~2份、大豆卵磷脂1~5份、海藻粉0.1~2份、粗蛋白1~3份、米糠0.5~5份。制备方法包括：配料,先将牡蛎去壳后搅碎；在搅碎的牡蛎肉中加入玉米粉和琼脂粉搅拌均匀,制成粒径为3~5cm的球状颗粒；将球状颗粒经120℃蒸煮灭菌30min；待灭菌后的颗粒降至室温后喷洒复合多维、胡萝卜素、抗菌肽、大豆卵磷脂、海藻粉和粗蛋白的混合粉末,最后用米糠包裹既得所述软颗粒饲料。上述软颗粒饲料及其制备方法用于青蟹养殖,可以获得高品质青蟹。(The invention provides a soft pellet feed and a preparation method and application thereof, the feed comprises, by weight, 20 ~ parts of oysters, 50 ~ parts of corn meal, 50 ~ parts of composite multi-vitamin 1 ~ parts of carotene 2 ~ parts of agar powder, 5 ~ parts of agar powder, 0.1 ~ parts of antimicrobial peptide, 1 ~ parts of soybean lecithin, 0.1 ~ parts of seaweed meal, 1 ~ parts of crude protein and 0.5 ~ parts of rice bran.)

1. The soft pellet feed is characterized by comprising, by weight, 20 ~ 30 parts of oysters, 50 ~ 60 parts of corn flour, 1 ~ 5 parts of compound multivitamins, 2 ~ 8 parts of carotene, 5 ~ 10 parts of agar powder, 0.1 ~ 2 parts of antibacterial peptide, 1 ~ 5 parts of soybean lecithin, 0.1 ~ 2 parts of seaweed meal, 1 ~ 3 parts of crude protein and 0.5 ~ 5 parts of rice bran.

2. A soft pellet feed as claimed in claim 1 wherein: the feed comprises the following components in parts by weight: 20 parts of oyster, 60 parts of corn flour, 2 parts of compound multivitamin, 4 parts of carotene, 7 parts of agar powder, 1 part of antibacterial peptide, 2 parts of soybean lecithin, 1 part of seaweed powder, 2 parts of crude protein and 1 part of rice bran.

3. The soft pellet feed as claimed in claim 1 or 2, further comprising alfalfa meal 4 ~ 5 weight portions.

4. The soft granulated feed as claimed in claim 1 or 2, wherein the soft granulated feed further comprises 3 ~ 6 parts by weight of fresh shell powder.

5. The soft pellet feed as claimed in claim 1 or 2, further comprising monocalcium phosphate 2 ~ 4 parts by weight.

6. The process for preparing a soft pellet feed of claim 1 ~ 5, comprising the steps of:

(1) mixing, namely removing shells of oysters and then crushing;

(2) Adding corn flour and agar powder into the minced oyster meat, and stirring uniformly to prepare spherical particles with the particle size of 3 ~ 5 cm;

(3) Steaming and sterilizing the spherical granules at 120 deg.C for 30 min;

(4) And after the sterilized granules are cooled to room temperature, spraying mixed powder of the rest components except the rice bran, and finally wrapping the mixed powder with the rice bran to obtain the soft granular feed.

7. Use of a soft pellet feed as claimed in any one of claims 1 ~ 5 or a process for the preparation of a soft pellet feed as claimed in claim 6 in blue crab farming.

8. The application method of claim 7, wherein the application method comprises feeding the soft pellet feed according to the following standard that the mass of the daphnia larva is 20% ~ 30%, the mass of the juvenile crab is 10% ~ 15%, the mass of the adult crab is 8% ~ 10%, and the mass of the cream crab is 2% ~ 5%.

Technical Field

The invention relates to a pellet feed, and in particular relates to a soft pellet feed and a preparation method and application thereof.

Background

The green crab (Scylla paramamosain) is commonly called Charybdis japonica, belongs to the phylum Arthropoda, the family of Clinopodium and the genus of blue crab, has delicious and unique meat flavor, extremely rich nutrition and high edible and medicinal values, is one of precious aquatic products in China and also one of important ocean culture economic crabs in Fujian province, has the annual output of 3.5093 ten thousand tons in 2017 Fujian province, is second only in the Guangdong province and is also a characteristic industry in Ningde city. The blue crabs are mainly carnivorous, like small mollusks, shellfish, small arthropods and other marine organisms, and have certain destructiveness on marine organism resources, at present, the blue crabs are mainly cultured in a pond or a cement pond, biological baits are easy to decay to pollute water quality, germs are bred, diseases are spread, survival and growth of the blue crabs are seriously influenced, and meanwhile, large-scale factory healthy culture is not facilitated.

At present, the green crab cultivation mainly comprises pond free-ranging, the requirement of the green crab on nutrition cannot be met by feeding biological baits, the water quality is easily damaged, the survival and the development of the green crab are seriously influenced, and the plump of the muscle of the green crab and the formation of crab cream are not facilitated.

Disclosure of Invention

The invention aims to provide a soft pellet feed as well as a preparation method and application thereof, which are used for solving the problems of insufficient formation of muscles and crab cream and the like in the growth and development process of blue crabs, further improving the quality of the blue crabs and providing a theoretical basis for industrial healthy culture and industrial sustainable development of the blue crabs. The technical scheme of the invention is as follows:

In a first aspect, the present invention provides a soft pellet feed comprising, in parts by weight: 20-30 parts of oyster, 50-60 parts of corn flour, 1-5 parts of compound multivitamin, 2-8 parts of carotene, 5-10 parts of agar powder, 0.1-2 parts of antibacterial peptide, 1-5 parts of soybean lecithin, 0.1-2 parts of seaweed powder, 1-3 parts of crude protein and 0.5-5 parts of rice bran.

preferably, the feed comprises the following components in parts by weight: 20 parts of oyster, 60 parts of corn flour, 2 parts of compound multivitamin, 4 parts of carotene, 7 parts of agar powder, 1 part of antibacterial peptide, 2 parts of soybean lecithin, 1 part of seaweed powder, 2 parts of crude protein and 1 part of rice bran.

optionally, the soft pellet feed further comprises the following components in parts by weight: 4-5 parts of alfalfa powder.

Optionally, the soft pellet feed further comprises the following components in parts by weight: 3-6 parts of fresh shell powder.

Optionally, the soft pellet feed further comprises the following components in parts by weight: 2-4 parts of monocalcium phosphate.

In a second aspect, the present invention provides a method for preparing the soft pellet feed, comprising the steps of:

(1) mixing, namely removing shells of oysters and then crushing;

(2) Adding corn flour and agar powder into the minced oyster meat, and uniformly stirring to prepare spherical particles with the particle size of 3-5 cm;

(3) Steaming and sterilizing the spherical granules at 120 deg.C for 30 min;

(4) And after the sterilized granules are cooled to room temperature, spraying mixed powder of compound multivitamin, carotene, antibacterial peptide, soybean lecithin, seaweed powder and crude protein, and finally wrapping with rice bran to obtain the soft granulated feed.

In a third aspect, the invention provides the soft pellet feed and the application of the preparation method thereof in blue crab cultivation.

Further, the application method comprises the following steps: feeding the soft pellet feed according to the following standard: the mass of the feeding body of the daphnia larva is 20-30 percent; the mass of the young crab feeding body is 10-15%; the mass of the adult crab feeding body is 8-10%; 2-5% of the mass of the feeding body of the cream crab.

the invention has the beneficial effects that: when the soft pellet feed is adopted to breed the blue crabs, the forming period of the blue crab cream is 15-17 days, and the color of the crab cream of the female crab is bright red or orange red; the crab spawn of the male crab is light yellow or light red. Compared with the existing blue crab spawn fed by the feed, the forming cycle of the blue crab spawn has obvious effect within 20-24 days. In addition, the soft feed can fully meet various nutrients in the development process of the blue crabs, promote the growth and development of the blue crabs, finally obtain high-quality blue crabs, and is not easy to deteriorate water quality.

Detailed Description

In the description of the present invention, it is to be noted that those whose specific conditions are not specified in the examples are carried out according to the conventional conditions or the conditions recommended by the manufacturers. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

the present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.