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A compound feed for soft-shell crabs and its preparation method

A technology of compound feed and imitation blue crab, which is applied in animal feed, animal feed, food processing, etc., can solve the problem of shortage of supply and achieve good food-attracting effect, increased stability, and good palatability

Active Publication Date: 2020-11-27
SHANTOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the conditions of pond culture, the output of "soft shell crab" is very small, but its value is several times that of ordinary crabs, and the market is in short supply

Method used

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  • A compound feed for soft-shell crabs and its preparation method
  • A compound feed for soft-shell crabs and its preparation method
  • A compound feed for soft-shell crabs and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-9

[0023] In addition to cholesterol and soybean lecithin, other components of the mud crab compound feed are composed of the following parts by weight (adjusted percentage of pregelatinized starch): fish meal 40; peeled soybean meal 25; shrimp head powder 5; fish soluble paste 4; Fish oil 4; mixed vitamins 3; mixed minerals 2; choline chloride 0.7; calcium dihydrogen phosphate 1.5; sodium alginate 3; ecdytin 0.1. Cholesterol and soybean lecithin are set at 9 ratios, and the feed formula is shown in Table 1:

[0024] Table 1 embodiment 1-9 (F1-F9) pseudo cave mud crab feed formula and nutritional components

[0025]

[0026] The preparation method of above 9 kinds of mud crab compound feeds comprising the following steps:

[0027] (1) All kinds of solid ingredients: fish meal, peeled soybean meal, shrimp head powder, fish soluble pulp, pregelatinized starch, mixed vitamins, mixed minerals, calcium dihydrogen phosphate and sodium alginate, etc. are crushed through 60-80 mesh ...

Embodiment 10

[0038] The components of the compound feed for mud crabs consisted of the following weight fractions: fish meal 40; peeled soybean meal 25; shrimp head powder 5; fish soluble paste 4; pregelatinized starch 10.2; fish oil 4; soybean lecithin 1; cholesterol 0.5; Mixed vitamins 3; mixed minerals 2; choline chloride 0.7; calcium dihydrogen phosphate 1.5; sodium alginate 3; ecdytin 0.1.

[0039] The mixed vitamin composition per kilogram is (minimum analysis content): calcium pantothenate 25g, inositol 60g, niacin 35g, vitamin E 7.5×10 3 IU, vitamin B 12 0.2g, biotin 0.1g, vitamin C (stable type) 100g, vitamin A3.6×10 6 IU, vitamin D3 1.5 x 10 6 IU; Vitamin K 3 10g, vitamin B 1 12g, vitamin B 2 8g, folic acid: 2g.

[0040] The mixed mineral composition per kilogram is (minimum analytical content): 8g iron, 1g molybdenum, 30g zinc, 2g magnesium, 2g manganese, 1g cobalt, 5g copper, 500mg iodine, and 40mg selenium.

[0041] The preparation method of the compound feed for th...

Embodiment 11

[0047] The components of the compound feed for mud crabs consisted of the following weight fractions: fish meal 38; peeled soybean meal 27; shrimp head powder 5; fish soluble paste 5; pregelatinized starch 9.2; fish oil 4; soybean lecithin 1; cholesterol 0.5; Mixed vitamins 3; mixed minerals 2; choline chloride 0.7; calcium dihydrogen phosphate 1.5; sodium alginate 3; ecdytin 0.1.

[0048] The mixed vitamin composition per kilogram is (minimum analysis content): calcium pantothenate 25g, inositol 60g, niacin 35g, vitamin E 7.5×10 3 IU, vitamin B 12 0.2g, biotin 0.1g, vitamin C (stable type) 100g, vitamin A3.6×10 6 IU, vitamin D3 1.5 x 10 6 IU; Vitamin K 3 10g, vitamin B 1 12g, vitamin B 2 8g, folic acid: 2g.

[0049] The mixed mineral composition per kilogram is (minimum analytical content): 8g iron, 1g molybdenum, 30g zinc, 2g magnesium, 2g manganese, 1g cobalt, 5g copper, 500mg iodine, and 40mg selenium.

[0050] The preparation method of the compound feed for the...

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Abstract

The invention relates to scylla paramamosain soft crab mixed feed and a preparation method thereof. The mixed feed comprises 35-40 parts of fish meal, 25-30 parts of peeled bean pulp, 4-6 parts of shrimp head powder, 4-6 parts of fish dissolved pulp, 10-15 parts of pregelatinized starch, 4-5 parts of fish oil, 0.5-2 parts of soybean lecithin, 0.5-2 parts of cholesterol, 3-4 parts of mixed vitamins, 2-3 parts of mixed minerals, 0.5-1 part of choline chloride, 1-2 parts of monocalcium phosphate, 4-6 parts of sodium alginate and 0.1-0.2 part of eclosion hormones. The mixed feed is particularly designed for scylla paramamosain soft crabs, is balanced in nutrient component, good in palatability and stable in raw material source, and a function of promoting eclosion of scylla paramamosain is achieved after the shrimp head powder, the eclosion hormones as well as the soybean lecithin and the cholesterol of certain ratios are used together; and the LC-PUFA (Long-Chain Polyunsaturated Fatty Acid) of a high ratio, particularly n-3LC-PUFA, is beneficial to increase of the survival rate and the eclosion rate, and nutrition requirements of the scylla paramamosain at specific growth stages can be met; as an adhesive, the sodium alginate is capable of improving the feed water stability and reducing the feed loss rate and can be taken in for 100% by the scylla paramamosain, the culture successrate of 'soft crabs' is 100%, the culture time is shortened by more than 10 days when being compared with that of natural bait or commercial crab feed, and the mixed feed is simple to prepare and very good in popularization value.

Description

technical field [0001] The invention relates to feed for aquaculture, and in particular provides a compound feed for mud crabs and soft-shell crabs and a preparation method thereof. Background technique [0002] The blue crabs cultured in my country are mainly blue crabs, with a breeding area of ​​about 380,000 mu and an annual output of 84,000 tons. It is the second largest marine cultured crab after swimming crabs. [0003] Juvenile crabs are omnivorous, while adult crabs are carnivorous. Although a feed formula for mud crabs has been disclosed (CN 102018148), there is no commercial mud crab feed on the market. The main reason is the high cost of feed, and the slow feeding of blue crabs, which is easy to cause a lot of waste of compound feed in the traditional pond culture mode. Therefore, at present, mud crab farmers still maintain an extensive business model of mainly feeding chilled fish and shellfish, while the traditional farming model has the obvious disadvantages ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K50/80A23K10/22A23K10/37A23K10/26A23K20/163A23K20/158A23K20/168A23K20/174A23K20/20A23K20/24A23K20/105A23K20/26A23K20/10
CPCY02A40/818Y02P60/87
Inventor 王树启李远友聂晓锋游翠红吴清洋
Owner SHANTOU UNIV
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