Microcapsule bait, bait feeding method and bait feeding device for grouper larvae

A technology of microcapsules and grouper, which is applied in fish farming, animal feed, animal feed, etc., can solve the problems of affecting the survival rate of grouper, restricting the development of aquaculture industry, and low absorption and utilization rate, so as to improve growth and Survival rate, good palatability, good stability in water

Inactive Publication Date: 2013-02-20
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, large-scale artificial breeding of grouper has been carried out in Fujian and Zhejiang in my country, but the special compound feed for juvenile grouper larvae has not been developed yet, and the breeding feed mainly adopts rotifers, artemia and copepods, etc. Feeding grouper with the existing seawater larvae and juvenile fish feed has a series of problems such as incomplete nutrition, poor palatability, and low absorption and utilization rate, which seriously affects the survival rate of grouper and restricts the further development of its aquaculture industry.

Method used

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  • Microcapsule bait, bait feeding method and bait feeding device for grouper larvae

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Experimental program
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Effect test

Embodiment 1

[0026] 1. Feed formula

[0027] The composition of the feed formula is: 230g cornmeal, 270g coconut cake, 140g rice bran, 60g chicken bone powder, 120g pea powder, 80g silkworm chrysalis powder, 60g sesame powder, 120g squid powder, 60g fish hydrolyzed protein, 15g papain, 15g multivitamin, compound Minerals 15g, Potato Starch 12g, Glycine 8g.

[0028] Two, the preparation method of microcapsule bait

[0029] The solid bait raw materials are pulverized with an ultrafine pulverizer, and the particle size is less than 20 μm. The various feed raw materials are weighed and mixed according to the ratio of the feed formula, and water is added. Firstly, they are fully mixed by hand, and then passed through a 100-mesh screen, and then used The three-dimensional multi-directional motion mixer was mixed for 10 minutes, and the mixed raw materials were put into a high-efficiency wet granulator, and passed through a 50-mesh mesh to make particles; The solution was sprayed at the bottom,...

Embodiment 2

[0033] The composition of the feed formula is: 250g cornmeal, 250g coconut cake, 120g rice bran, 70g chicken bone powder, 100g pea powder, 100g silkworm chrysalis powder, 70g sesame powder, 100g squid powder, 50g fish hydrolyzed protein, 20g papain, 20g multivitamin, Minerals 20g, Potato Starch 10g, Glycine 10g.

[0034] Preparation method and test method are with embodiment 1, and culture carries out 40 days, and the survival rate of the grouper of test group is 36.2%, and the survival rate of control group is 24.5%; The average full length of grouper of test group is 6.2cm, The average total length of the grouper in the control group was 4.1 cm.

Embodiment 3

[0036] The composition of the feed formula is: 270g cornmeal, 230g coconut cake, 100g rice bran, 80g chicken bone powder, 120g pea powder, 120g silkworm chrysalis powder, 80g sesame powder, 80g squid powder, 40g fish hydrolyzed protein, 25g papain, 25g multivitamin, compound Minerals 25g, potato starch 8g, glycine 12g.

[0037] Preparation method and test method are with embodiment 1, and culture carries out 40 days, and the survival rate of the grouper of test group is 33.5%, and the survival rate of matched group is 22.9%; The average full length of grouper of test group is 5.7cm, The average total length of the grouper in the control group was 3.8 cm.

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Abstract

The invention provides a microcapsule bait, a bait feeding method and a bait feeding device for grouper larvae. The microcapsule bait comprises ingredients of maize meals, coconut cakes, rice bran, chicken bone powders, pea powders, silkworm chrysalis powders, sesame powders, sleeve-fish powders, and the like. According to the microcapsule bait, the bait feeding method and the bait feeding device for the grouper larvae, an innovative formula and a processing technology are utilized, the nutritional requirements for larva growth can be met, the nutrition is comprehensive, the palatability is good, the water stability is good, and the like; the bait can be produced in a batch mode, is convenient to store, transport and feed and applicable to factorial offspring seed production, simultaneously, the corresponding feeding method and feeding device are utilized, the growth and survival rate of the grouper larvae can be improved, and the microcapsule bait, the bait feeding method and the bait feeding device for the grouper larvae are applicable to large-scale popularization and usage.

Description

technical field [0001] The invention belongs to the technical field of mariculture, in particular to a microcapsule bait for juvenile grouper larvae, a bait feeding method and a bait feeding device. Background technique [0002] Grouper, belonging to the order Perciformes, has a long oval body and slightly flattened sides. The mouth is large, with an auxiliary maxilla, and the teeth are fine and pointed, and some expand into canine teeth. The body is covered with small ctenoid scales, sometimes buried under the skin. Dorsal and anal fins well developed. Caudal fin rounded or concave. There are many variations in body color, often brown or red, with stripes and spots. It is a large and medium-sized marine fish in warm water. Grouper is rich in nutrition, and the meat is tender and white, similar to chicken, and is known as "sea chicken". Grouper is also a low-fat, high-protein high-quality edible fish. It is promoted as one of the four famous fishes in my country by Hong...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/18A23K1/14A23K1/16A23K1/10A23K1/165A01K61/00A01K61/02
CPCY02A40/81
Inventor 陈应华阳丹马明华
Owner ZHEJIANG OCEAN UNIV
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