A kind of method for cage breeding of Yangtze finless porpoise

A net cage and finless porpoise technology, applied in the field of Yangtze finless porpoise cage breeding, to achieve the effects of disease prevention, optimized breeding system, and stable shape settings

Active Publication Date: 2021-01-01
湖北长江天鹅洲白鱀豚国家级自然保护区管理处 +1
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Problems solved by technology

At present, there is no research on the breeding of cetaceans in cages at home and abroad

Method used

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  • A kind of method for cage breeding of Yangtze finless porpoise
  • A kind of method for cage breeding of Yangtze finless porpoise
  • A kind of method for cage breeding of Yangtze finless porpoise

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0030] The net cage used for the breeding of the Yangtze finless porpoise according to the present invention comprises a main body frame 1 and an inverted trapezoidal casing 2, the main body frame 1 is provided with buoys 4, and the four corners of the bottom of the casing are hung with sinkers 3 respectively, There are fixed devices around the cage, and sun protection facilities are installed on the upper part of the cage.

[0031] Such as figure 1 As shown, the main frame 1 is a square with a length of 15m and a width of 15m welded by 8cm angle steel; the box body 2 is made of 60 strands of soft nylon mesh, and the top of the cage is 14.5m long x 14.5m wide. The bottom specification is 13.4m x 13.4m wide, and the mesh is 6cm. This design can ensure that the net is flat, without wrinkles, and does not form a net pocket, which plays a good role...

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Abstract

The invention provides a neophocaena phocaenoides asaeorientalis net cage breeding method. A floating trapezoid net cage is simple to manufacture, stable in shape and resistant to collision, so that newly born neophocaena phocaenoides asaeorientalis is effectively protected, operations are flexible, management is easily implemented, Yangtze River water resources are conveniently utilized, and environments are close to original survival environments. The method includes the steps: net cage breeding; physical examination and behavior surveillance; delivery management; emergency treatment. Natural predation and artificial feeding are combined, nutrient requirements of different periods of a female neophocaena phocaenoides asaeorientalis and a young neophocaena phocaenoides asaeorientalis aremet, breeding success rate is increased, physical examination is regularly implemented, diseases are prevented, growth and development conditions of the neophocaena phocaenoides asaeorientalis are accurately known, breeding systems and delivery management are optimized, and net cage breeding of the neophocaena phocaenoides asaeorientalis is successfully implemented.

Description

technical field [0001] The invention belongs to the field of aquaculture, and in particular relates to a method for breeding Yangtze finless porpoise in a cage. Background technique [0002] The Yangtze finless porpoise (Neophocaena asiaeorientalis a.) is a small toothed cetacean living in the Yangtze River in my country. It is only distributed in the middle and lower reaches of the Yangtze River and its Poyang Lake and Dongting Lake. In the past few decades, due to the impact of various human activities, the living environment has deteriorated sharply, and the population has declined severely. In 2013, IUCN adjusted its endangered level to "critically endangered" according to the research results of the Institute of Hydrobiology, Chinese Academy of Sciences. [0003] As a means of protecting endangered small cetaceans, captive breeding technology is still being valued, and it will also play an important role in scientific research, species protection, and public environmen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10A01K61/60A23K50/80A23K10/22
CPCA23K10/22A23K50/80A01K61/10A01K61/60Y02A40/81
Inventor 龚成郝玉江丁泽良王致远曾宪源王克雄胡良慧郑劲松梅志刚王丁张振华成先红李明辉丁亚文
Owner 湖北长江天鹅洲白鱀豚国家级自然保护区管理处
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