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Pinctada martensii micro-encapsulated diet and preparation method thereof

A technology of Pinctada martensii and microcapsules is applied in the field of microcapsule feed and preparation of Pinctada martensii, which can solve the problem that the survival rate, growth rate and metamorphosis rate of larvae are low, and the demand for the bait of Pinctada martensii cannot be guaranteed. , does not meet the problems of large-scale production of feed, and achieves the effect of being conducive to feeding, less cracks, and not easy to break.

Inactive Publication Date: 2015-10-28
GUANGDONG OCEAN UNIVERSITY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The typical characteristics of these microcapsule feeds are: liquid microspheres, inconvenient transportation and storage, and do not meet the requirements of large-scale production in the feed industry; the core material has a single component, and the survival rate, growth rate and metamorphosis rate of larvae are significantly lower than those of the control group
[0005] To sum up, the cultivation model of pinnacle martensii in sea areas is facing serious constraints of frequent disasters and environmental degradation in sea areas, and artificially cultivated biological bait cannot meet the bait demand for factory culture of pinnacles martensii. Therefore, the development of small particle size, stable Fully artificial compound feed that is good in sex, meets the feeding mode and nutritional needs of Pinctada martensii, and can be industrialized is the primary task and prerequisite for large-scale factory culture and pearl breeding of Pinctada martensii
At present, no such feed has entered the market

Method used

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  • Pinctada martensii micro-encapsulated diet and preparation method thereof
  • Pinctada martensii micro-encapsulated diet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The present embodiment provides a microcapsule feed of Pinctada martensii, which is composed of core material and wall material: 12 kg of imported fish meal, 10 kg of enzymatically hydrolyzed soybean meal, 50 kg of kelp powder, 5 kg of yeast autolyzed powder, 5 kg of spirulina powder, α- 16.3 kg of starch, 1 kg of compound minerals, 0.5 kg of compound vitamins (including 0.3 kg of vitamin C), 0.2 kg of choline, and 0.2 kg of carrageenan, 0.8 kg of gelatin and 9 kg of water were used as feed wall materials.

[0031] The preparation method of the above-mentioned Pinctada martensii microcapsule feed: mix the raw material of the feed core material and ultrafinely pulverize it to ≤38 μm, mix the raw material of the feed wall material and homogenize it to ≤28 μm through a colloid mill, and mix the above-mentioned feed core material raw material with the wall material The raw materials are mixed according to the weight ratio of 100:10, and the microcapsule bait is made by spray...

Embodiment 2

[0035] The present embodiment provides a microcapsule feed of Pinctada martensii, which is composed of core material and wall material: 12kg of imported fish meal, 10kg of enzymatically hydrolyzed soybean meal, 45kg of kelp powder, 5kg of yeast autodissolving powder, 15kg of spirulina powder, α- 11.3kg of starch, 1kg of compound minerals, 0.5kg of compound vitamins (including 0.3kg of vitamin C) and 0.2kg of choline are used as feed core materials; 0.2kg of carrageenan, 0.8kg of gelatin and 9kg of water are used as feed wall materials.

[0036]The preparation method of the above-mentioned Pinctada martensii microcapsule feed is the same as in Example 1.

[0037] The weight ratio of each main nutrient in the feed is 25.66% of crude protein, 1.49% of crude fat and 28.25% of ash.

[0038] The microcapsule feed prepared in this embodiment was used to culture Pinctada martensii, and the culture method was the same as in Example 1. The results of its survival rate and growth rate a...

Embodiment 3

[0041] This embodiment provides a microcapsule feed of Pinctada martensii, which is composed of core material and wall material: 10 kg of imported fish meal, 5 kg of enzymatically hydrolyzed soybean meal, 60 kg of kelp powder, 7.6 kg of yeast autolyzed powder, 5 kg of spirulina powder, α - 10 kg of starch, 2 kg of compound minerals, 0.3 kg of compound vitamins (including 0.2 kg of vitamin C), and 0.1 kg of choline are used as feed core materials; 1 kg of carrageenan, 1 kg of gelatin and 18 kg of water are used as feed wall materials.

[0042] The preparation method of the above-mentioned Pinctada martensii microcapsule feed and the method for culturing Pinctada martensii are basically the same as in Example 1, except that the weight ratio of the core material raw material to the wall material raw material is 100:20. The results of its survival rate and growth rate are similar to those of Examples 1-2, the cultured shellfish spray water powerfully, and the scales on the body sur...

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Abstract

The invention relates to aquatic feeds, and particularly discloses pinctada martensii micro-encapsulated diet and a preparation method thereof. The pinctada martensii micro-encapsulated diet is prepared from core raw materials and wall raw materials, wherein the core raw materials comprise the following components in percentage by weight: 10-15 percent of fish powder, 5-15 percent of enzyme hydrolyzed soybean meal, 40-60 percent of kelp powder, 5-10 percent of yeast autolytic powder, 5-15 percent of spirulina powder, 10-20 percent of alpha-starch, 1-2 percent of compound minerals, 0.3-0.6 percent of vitamin complex and 0.1-0.3 percent of choline. According to the preparation method, the core raw materials and the wall raw materials are grinded and mixed to prepare the micro-encapsulated diet by utilizing a spray-drying method. The micro-encapsulated diet is fully-artificial feed for feeding habits and nutritional requirement of pinctada martensii, and is used for providing raw material guarantee for establishing large-scale industrial aquaculture and pearl production mode of pinctada martensii.

Description

technical field [0001] The invention relates to an aquatic feed, in particular to a microcapsule feed of Pinctada martensii and a preparation method thereof. Background technique [0002] Martensii pearl oyster ( Pinctada martensii ) is the main shellfish species cultivated in seawater pearls in my country. Since the 1950s, it has been adopting the culture mode of hanging and raising in coastal bays or ports with cages. Disasters such as typhoons, heavy rains, and frequent red tides in offshore waters often make the culture At the same time, there are many types of offshore aquaculture, and the pollution of sea area aquaculture has also seriously affected the benefits and development of the pearl industry. Industrial farming can avoid the serious negative impact of the above-mentioned disaster climate and environmental pollution on Pinctada martensii culture. [0003] Pinctada martensii is an adherent animal and lacks the ability to actively prey. It is a typical passive fi...

Claims

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Application Information

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IPC IPC(8): A23K1/18
CPCY02A40/81
Inventor 王庆恒孙瑞椒刘兴旺杨创业邓岳文杜晓东
Owner GUANGDONG OCEAN UNIVERSITY
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