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Method of catching and artificial domestication of sea otters

A technology of artificial domestication and sea dragons, applied in fishing, fish farming, climate change adaptation, etc., to achieve high survival rate and simple operation

Active Publication Date: 2017-04-26
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there are few relevant research reports on sea dragon breeding in China, and it is limited to artificial breeding and breeding of some ornamental sea dragon species in foreign countries.

Method used

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  • Method of catching and artificial domestication of sea otters
  • Method of catching and artificial domestication of sea otters
  • Method of catching and artificial domestication of sea otters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Determination of the condition of Hailong's respite

[0044] Live sea dragons were transported to the nursery for temporary breeding. On the basis of analyzing the environmental conditions in the field, factors such as temperature, salinity, light intensity, and stocking density of sea dragons were tested respectively, and the most suitable factors and conditions during the temporary breeding of sea dragons were discussed ( The experimental method is the same as that described in the above-mentioned specific example 1).

[0045] The test results of the various holding conditions of Hailong are as follows: Figure 2-5 shown. Taking the temporary breeding and experimental survival rate of sea dragons over 80% as the standard for selecting temporary breeding conditions, the conditions for temporary breeding of sea dragons are: temperature 8-20°C; salinity 18-32; light intensity 30-120 Lx; The density is 30-40 tails / square; under the above conditions, the temporary surviv...

Embodiment 2

[0047] Determination of suitable stocking density for domestication

[0048] Choose a smooth, flat bottom, high wall of the cement pool or glass fiber reinforced plastic tank as the sea dragon domestication container, while controlling the breeding water level at three water level gradients of 60, 80 and 100 centimeters, the breeding density of sea dragons is set to 40, 60 fish / square, Every week thereafter, the stocking density was increased by 20 fish / square; the number of surviving sea dragons in each treatment was counted every week, and the survival rate was calculated (the ratio of the number of survivors to the initial value of the week*100%), and the test lasted for 4 weeks (the experimental method was the same as above. Specific embodiment one). The results are shown in Table 1.

[0049] Table 1 Changes in the domestication survival rate of sea dragons under the condition of artificially increasing the stocking density

[0050]

[0051] The initial breeding densi...

Embodiment 3

[0053] Feed conversion and domestication

[0054] On the basis of the temporary feeding strategy, during the feeding time period at 8 o'clock in the morning, gradually reduce the shrimp larvae by 1-2% of the body weight of the sea dragon every day, and increase the frozen brine shrimp by 1-2% of the body weight of the sea dragon every day, until the frozen brine shrimp is completely fed brine shrimp; then feed at 2 pm, gradually reduce the live brine shrimp (the same amount as above) every day, and increase the frozen brine shrimp or frozen mysis larvae with 5% of the sea dragon’s body weight every day until the frozen bait is completely fed. The initial sea dragon density of the test was 30 tails / square, and lasted for 12 days (the experimental method was the same as that described in the above-mentioned specific example 1). The results are shown in Table 2.

[0055] Table 2 Changes in survival rate of sea dragons bait domesticated

[0056]

[0057] Note: 10% refers to t...

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Abstract

The invention discloses a method of catching and artificial domestication of sea otters. The method of catching and artificial domestication of sea otters is characterized in that from the end of December of every year to the beginning of April of next year, a fixed net is utilized to collect the sea otters which are born in the sea area in the current year and grow to a certain scale to the net; through an artificial method, male and female sea otters which have good conditions and healthy bodies are selected; artificial domestication of the sea otters can be performed indoors; and the method specifically includes the steps: selection of breeding containers, selection of baits and feeding strategy, bait domestication, and management of management. The method of catching and artificial domestication of sea otters has the advantages that the catching survival rate of wild sea otters is more than 90%; the domestication survival rate of wild sea otters is more than 95%; and the method provides samples and parents for research on protection of sea otter resources, and development of artificial breeding of sea otters.

Description

technical field [0001] The invention belongs to the technical field of agricultural mariculture, and in particular relates to a sea dragon fishing and artificial domestication method. Background technique [0002] Sea dragon is a kind of marine medicinal source organisms with obvious efficacy, which is included in the previous editions of "Chinese Pharmacopoeia" and various ancient prescriptions of traditional Chinese medicine. At present, there is still a certain amount of wild sea dragons in my country's sea areas. However, in recent years, natural resources have declined significantly, and artificial breeding is the only direction and way of development in the future. The development of this technology and industry plays an important role in the protection of sea dragon resources and meeting market demand. [0003] At present, there are few relevant research reports on sea dragon breeding in China, and it is limited to artificial breeding and breeding of some ornamental ...

Claims

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Application Information

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IPC IPC(8): A01K69/02A01K61/10A23K50/80A23K10/22
CPCA01K61/00A01K69/02Y02A40/81
Inventor 徐永健梁崇琦牟金婷
Owner NINGBO UNIV
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