Compound feed for young crabs during their later stage, and its prepn. method

A technology of Scylla serrata and compound feed, which is applied in animal feed, animal feed, climate change adaptation and other directions, can solve problems such as low survival rate of metamorphosis, and achieve the effects of strong predation, low processing cost and good performance.

Inactive Publication Date: 2007-02-14
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of artificial breeding of blue crabs, it was found that the metamorphosis survival rate of late larvae was low, which was closely related to the water quality of the seedlings, and even more closely related to the feed supply at this time. Although the biological bait can better meet its nutritional needs, the biological The bait is difficult to meet the bait requirements of large-scale

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1

[0024] When preparing the compound feed for the postlarvae of Scylla serrata, the solid raw materials are crushed and sieved: the solid raw materials fish meal, yeast powder, shrimp head meal, puffed soybean meal, corn meal, gluten powder, kelp powder and wheat bran are crushed. , Pass through an 80 mesh sieve and set aside; the crushed and sieved raw materials are respectively weighed according to the mass ratio and mixed with multiple vitamins, multiple minerals, natural biological activity attractants and other raw materials step by step to solid raw materials The coefficient of variation CV of the uniformity of the mixture is less than 5%; the solid mixture is mixed with peptone, fish paste, and edible oil by the dilution mixing method until the coefficient of variation of the uniformity of the mixture is less than 5%; the mixture is tempered and adjusted The steam pressure of the quality is 460kPa, the tempering temperature is 90℃, and the humidity of the t...

Example Embodiment

[0026] Example 2

[0027] The preparation process is similar to Example 1. The difference is that when the mixture is tempered, the steam pressure for tempering is 450kPa, the tempering temperature is 85°C, and the humidity of the tempered material is 16%; the tempered mixture The granulation is carried out in an extrusion granulator, and the particle size is passed through a 20-mesh sieve; the granulated compound feed is dried and then cooled. Multivitamins are made by mixing VB1, VC, inositol and cellulose. Multivitamins are made by mixing VB5, VB6, VB7, VD3 and cellulose. A variety of minerals from KH 2 PO 4 , CaCO 3 , MgSO 4 ·7H 2 O, MnSO 4 ·4~6H 2 O, CoCl 2 ·6H 2 O and ferric citrate are mixed. The natural biologically active attractant is selected from earthworm meal and fish paste.

[0028] The content of various raw materials by mass ratio is 100 fish meal, 45 yeast meal, shrimp head meal 8.5, puffed soybean meal 14.1, corn meal 15.4, gluten meal 5.13, kelp meal 7.7, wheat...

Example Embodiment

[0029] Example 3

[0030] The preparation process is similar to Example 1. The difference is that when the mixture is tempered, the steam pressure for tempering is 470kPa, the tempering temperature is 70°C, and the humidity of the tempered material is 15.5%; the tempered mixture Granulation is carried out in an extrusion granulator, and the particle size is passed through a 40-mesh sieve; the granulated compound feed is dried and cooled. Multivitamins are made by mixing VB1, VC, inositol and cellulose. Multivitamins are made by mixing VB2, VB11, VB12, VE, and inositol. A variety of minerals from KH 2 PO 4 , CaCO 3 , KCl, AlCl 3 ·6H 2 O, ZnSO 4 ·7H 2 O, CuCl 2 , Calcium lactate is mixed. The natural biologically active attractant is selected from fish paste.

[0031]The content of various raw materials by mass ratio is 100 fish meal, yeast meal 10.3, shrimp head meal 10.3, puffed soybean meal 23.1, corn meal 14, gluten meal 6.5, kelp meal 11.5, wheat bran 12.8, multi-vitamin 2, A v...

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PUM

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Abstract

A mixed forage for the later-phase larvae of scylla is prepared proportionally from protein, fat, fibers, Ca, P, and phosphatide through pulverizing, sieving, mixing, adding peptone, fish slurry and edible oil, mixing, modifying, granulating, drying and cooling.

Description

technical field [0001] The invention relates to a mud crab feed, in particular to a special compound feed for postlarvae of mud crabs and a preparation method thereof. Background technique [0002] Scylla serrata Forskl, 1775 is mainly distributed in the southeast coastal estuary area south of Zhoushan, Zhejiang, my country, as well as in Southeast Asia, Australia, Japan, India, South Africa and other sea areas. It has large individuals, fast growth, and strong adaptability. It has the characteristics of rich nutrition, high market price and good breeding benefits, and is deeply loved by aquaculture producers and consumers. It has become one of the important marine aquaculture species in the southern coastal areas of my country. [0003] With the continuous expansion of the breeding scale of Scylla serrata, the demand for breeding seed is increasing day by day, and the natural seed cannot meet the demand of breeding production. Artificial breeding is the only way to solve th...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/16A23K10/20A23K10/22A23K20/00A23K20/174A23K20/20A23K50/80
CPCY02A40/818
Inventor 艾春香王桂忠李少菁林琼武
Owner XIAMEN UNIV
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