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Micro particle feed for rockfish fry and its production procss

A technology of micro-particle feed and micro-particles, applied in animal feed, animal feed, climate change adaptation, etc., can solve the problem of insufficient supply of biological bait, and achieve the effect of solving serious shortage of supply, good effect, and high economic value

Inactive Publication Date: 2003-09-17
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of grouper larvae, immature and juvenile fish enriched nutrition microparticle feed and its production process that can effectively partially replace biological bait, so as to solve the problem of serious shortage of current biological bait supply

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment one: mussel meat (100kg), egg lecithin (8kg), cod oil (10kg), 50% vitamin E (1kg), vitamin C (0.5kg) are first used papain (activity is 1,000,000) in proportion Unit) After 3 hours of constant temperature enzymolysis at 70-72°C in a hot and cold tank, add 100 grams of ethoxyquinoline, filter to obtain a hydrolyzate, pump it into a QZR-150 high-speed centrifugal spray dryer for spray drying to obtain a Micro-granule feed (properties as shown in the table), nozzle speed: 15000r / min, inlet temperature: 200~211℃, outlet temperature: 100~103℃. After feeding grouper fry, there is no significant difference in growth and survival rate compared with feeding rotifers and artemia, which achieves a good effect of partially replacing biological bait.

Embodiment 2

[0017] Embodiment two: squid meat (100kg), soybean lecithin (8kg), cod oil (10kg), 50% vitamin E (1kg), vitamin C (0.5kg), spirulina powder (1kg) are first used in pancreas according to the proportion Protease (with an activity of 500,000 units) was enzymolyzed in a hot and cold tank at 60-62°C for 3 hours, then 100 grams of ethoxyquinoline was added, the hydrolyzate was filtered, and pumped into a QZR-150 high-speed centrifugal spray dryer Spray-dry to obtain a micro-granule feed (properties as shown in the table), nozzle speed: 18000r / min, inlet temperature: 200-211°C, outlet temperature: 100-103°C. After feeding grouper fry, there is no significant difference in growth and survival rate compared with feeding rotifers and artemia, and also achieved a better effect of partially replacing biological bait.

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Abstract

A microgranular bait for the fry of Epinephelus is prepared from crude protein, crude fat, phosphatide, ash, n-3HUFA, DHA / EPA, DHA, and EPA according to a certain proportion through enzymolyzing by proteinase, further adding antioxidizing agent, filtering, and spray drying. Its advantages are rich nutrients, and low settling speed.

Description

technical field [0001] The invention relates to a microparticle feed with enhanced nutrition for grouper larvae, juveniles and juveniles and a production process thereof. technical background [0002] The popularity of grouper farming, the most valuable economic fish in mariculture, is increasing the demand for seedlings. However, the number of natural seedlings is limited, and most of them come from imports. A large amount of foreign exchange is spent every year, and there is a huge gap in market demand. The artificial breeding of grouper and adult fish breeding is a high-value technology industry with obvious economic benefits, and has broad market prospects. [0003] About the technology of grouper micro-pellet feed, there is no relevant information at home and abroad at present, and there is no product in this respect on the market. And the raising of grouper larvae is all replaced with the compound feed of biological bait or other sea fish. Moreover, the bait produced...

Claims

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Application Information

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IPC IPC(8): A23K20/00A23K50/80
CPCY02A40/818
Inventor 刘永坚田丽霞王胜
Owner SUN YAT SEN UNIV
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