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Indoor artificial leech hibernation method

A technology for artificial hibernation and leech, applied in the field of medicinal animal breeding, can solve the problems of reducing yield and economic benefit, reducing the survival rate of leech germplasm, etc., and achieves the effects of reducing weight loss, improving overwintering survival rate, and increasing mortality rate.

Inactive Publication Date: 2017-05-10
NANJING AGRICULTURAL UNIVERSITY
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Problems solved by technology

However, there are uncontrollable factors such as water temperature, light, lightning, rainfall and other uncontrollable factors during outdoor wintering, which will reduce the survival rate of leech germplasm, reduce production and economic benefits

Method used

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  • Indoor artificial leech hibernation method
  • Indoor artificial leech hibernation method
  • Indoor artificial leech hibernation method

Examples

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specific Embodiment 1

[0044] The present invention selects about 10 g of healthy leeches (Whitmania pigra Whitman), places 10 kilograms of leeches in a plastic container at a density of 750 tails per square meter, and temporarily raises them in clear water for 48 hours to discharge feces. After changing the water, pour water into the container to a depth of about 8 cm. Aerated tap water for 24 hours, in the dark, use a temperature control device to lower the water temperature to 4°C at a rate of 1°C / 12h or 1°C / 24h, so that the leeches enter a hibernation state. During the hibernation process, the water quality depends on the turbidity Change the water in the state to keep the water clean, change the water 100% each time, do not feed the bait, and minimize and avoid other external disturbances and stimuli except temperature control and water change, so as not to break the hibernation state, causing a large amount of energy consumption and an increased risk of death .

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Abstract

The invention provides an indoor artificial leech hibernation method, and aims at providing an artificial leech hibernation method which is easy and convenient to operate indoors and high in survival rate. By adopting the method, the leech survival rate can be increased by about 67% compared with that of an existing outdoor natural overwintering method; the leech conversation rate is increased on the premise that the mass of leech bodies is basically not decreased. Compared with an existing outdoor breeding natural overwintering conversation method, the method has the advantages that the death number of breeding leeches after overwintering can be decreased, and the body weight decrease of the breeding leeches after overwintering can be reduced; according to incomplete statistics, the dry weight of the leeches can be increased by about 40 kilograms per mu, and the economic benefit is increased by about 40,000 yuan per mu according to the current market price of 1,000 yuan per kilogram.

Description

[0001] 1. Technical field [0002] The invention relates to an indoor artificial hibernation method for leeches, belonging to the field of medicinal animal breeding. [0003] 2. Background technology [0004] The leech Whitmania pigra Whitman, also known as the wide-bodied golden thread leech, belongs to the family Annelididae in animal taxonomy. Its dried whole body is a Chinese medicinal leech. It has the functions of clearing the meridian, expelling stasis and eliminating symptoms, and is the main raw material of many Chinese patent medicines for the treatment of cardiovascular and cerebrovascular diseases, such as Tongxinluo Capsule and Naoxuekang. In recent years, with the continuous deepening of research on leeches, its outdoor artificial breeding method has achieved initial success, and the contradiction between supply and demand has eased to some extent. [0005] Leeches are temperature-changing animals with the habit of "hibernating". As the external temperature drops...

Claims

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Application Information

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IPC IPC(8): A01K61/40
CPCA01K61/00
Inventor 史红专郭巧生闫士猛王嘉戴道新
Owner NANJING AGRICULTURAL UNIVERSITY
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