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Method for nursing sepiella maindroni with soft compound feed

A technology of Mann's needle-free squid and compound feed, which is applied in the direction of animal feed, animal feed, application, etc., can solve the problem of restricting the scale of artificial breeding of Mann's needle-free squid, reducing the efficiency of artificial breeding of Mann's needle-free squid, and freezing small impurities. The problem of low utilization of fish, etc., can reduce the cost of feed and labor, improve the feeding effect, and save protein.

Inactive Publication Date: 2010-09-08
NINGBO UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

The natural squid preys on fish and crustaceans as natural feed. At present, the artificial cultured squid mainly uses frozen small fish as feed, and the frozen small fish are directly or chopped up and then scattered. In the aquaculture water body, the daily feeding amount is 8-20% of the total weight of squid mansoni, generally 1-3 times a day, and the utilization rate of squid mansoni to frozen small miscellaneous fish is relatively low. Low, and will cause water quality pollution, thus the survival rate of artificial cultured Mansoni squid with frozen small miscellaneous fish as feed is low at present, less than 35%, and the feed cost is higher, thereby reduces artificial cultured Mansoni. The benefit of the needle squid also restricts the scale of the artificial culture of the needle squid

Method used

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Examples

Experimental program
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Embodiment

[0012] Implementation location: In the breeding pond of the breeding farm in Fenghua City, there are a total of 6 40-purpose net cages of 1m×1m×1m in the breeding pond;

[0013] Breeding water: Taken from Xiangshan Port, Zhejiang, the filtered seawater has a salinity of 20.97-28.37, a pH of 8.02-8.10, a water temperature of 27.5-31.4°C, and half of the water is changed every day;

[0014] Larvae for breeding: select 240 squids with a carcass length of about 12.7±0.3 mm after cultivation and domestication, and randomly divide them into 6 groups, weighing 40 in each group, and put them into one of the 6 net cages respectively. one;

[0015] The first net cage: use 50kg of base material, 28kg of white fish meal, 3.6kg of microcrystalline cellulose, 14kg of dextrin, and 3.8kg of biologically extracted oil as raw materials. The biologically extracted oil is prepared from fish oil and soybean oil at a ratio of 1:1. Mixed with water, mixed with compound feed powder on the same day, ...

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PUM

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Abstract

The invention discloses a method for feeding Sepialla maindroni with soft formula feed, which is characterized in that through preparing the formula feed powder needed to feed everyday, the formula feed powder is prepared into the long rod shaped soft formula feed with the length of 2 to 6 cm and the diameter of 0.2 cm, where the water content being 10% to 20%, the weight percentage of crude protein being 38% to 45% and the weight percentage of crude fat being 9% to 11%; and the long rod shaped soft formula feed is reserved with moisture retention and is evenly fed into a net cage of culturing the Sepialla maindroni for average three times a day with the everyday feeding weight being 8% to 12% of the total weight of the Sepialla maindroni in the net cage. The method has the advantages that survival rate of the Sepialla maindroni is high and reaches to more than 43%; the Sepialla maindroni grows well; benefits of artificial culture of the Sepialla maindroni are improved; and feed cost and man-hour cost for culturing the Sepialla maindroni are reduced.

Description

technical field [0001] The invention relates to a method for cultivating squid, in particular to a method for feeding squid with soft compound feed. Background technique [0002] Sepiella maindroni belongs to cephalopods and is an important marine economic animal in my country. It is rich in protein and unsaturated fatty acids, etc., and the crude protein content is 79.74% of the weight of the ash. Amino acids and 4 kinds of umami amino acids, EPA and DHA are the main unsaturated fatty acids, so the squid is rich in nutrition and delicious, and is deeply loved by the public. The natural squid preys on fish and crustaceans as natural feed. At present, the artificial cultured squid mainly uses frozen small fish as feed, and the frozen small fish are directly or chopped up and then scattered. In the aquaculture water body, the daily feeding amount is 8-20% of the total weight of squid mansoni, generally 1-3 times a day, and the utilization rate of squid mansoni to frozen small ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K1/18A23K1/00A23K1/16A23K10/22A23K20/158A23K20/163A23K50/80
CPCY02A40/818
Inventor 蒋霞敏王春琳
Owner NINGBO UNIV
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