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Sterilization method for squid larva

A technology for larvae and cuttlefish, which is applied in the field of sterilization of squid larvae, can solve problems such as the death of living animals, and achieve low-cost effects

Inactive Publication Date: 2011-08-24
ZHEJIANG OCEAN UNIV
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  • Application Information

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Problems solved by technology

However, it is not suitable for the live sterilization of aquaculture animals, which will cause the death of live animals

Method used

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  • Sterilization method for squid larva
  • Sterilization method for squid larva

Examples

Experimental program
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Embodiment

[0017] Example: refer to figure 1 , squid larvae sterilization method, implementation process is as follows:

[0018] During the operation, the cuttlefish larvae were inflated continuously with an air pump, and the nutrient-enhanced Artemia nauplii were fed twice a day. The temperature of the water in the culture pond was 19°C and the salinity was 17‰. The culture area was set at the mouth of the Yangtze River. Mansoni's needleless squid breeding ground.

[0019] (1) temperature-salt adaptation: the cuttlefish larvae to be sterilized are moved into a sterilized container with a volume of 10 L, and then the water in the sterilized container is gradually raised to 30° C. of water temperature from the water temperature and salinity of the culture pond. The temperature rise adopts the heating method of hot rods, and the water temperature is controlled not to exceed 1°C per hour, so as to avoid the massive death of cuttlefish larvae due to excessive water temperature rise. When t...

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Abstract

The invention discloses a sterilization method for a squid larva, which comprises the steps of (1) temperature and salinity adaptation, namely, putting the squid larva to be sterilized in a sterilization container, and then heating water in the sterilization container from the temperature of water in a culture pond to 26.5 to 30 DEG C, and adjusting the salinity from 32 to 36 thousandths; (2) violent change by fresh water, namely, adding fresh water in water in the sterilization container to lead the salinity of water around the squid larva to be reduced from the salinity in the step of temperature and salinity adaptation to below 10 thousandths in one minute, and damaging the surface structure of germ due to in adaptation to low-salinity water when the gem absorbs water; and (3) temperature and salinity recovery, namely, immediately transferring the squid larva after violent fresh-water change to an environment with temperature of 26.5 to 30 DEG C and salinity of 32 to 36 thousandths for temporary culture, and then recovering the temperature and salinity of water to the standard of water in the culture pond. The sterilization method for the squid larva is simple and easy, causes little damage to the squid larva, has low mortality rate, and is environment-friendly and safe.

Description

technical field [0001] The invention relates to a sterilizing method for aquaculture animals, in particular to a sterilizing method for cuttlefish larvae. Background technique [0002] Various methods of disinfection are known in the art. Examples of these embodiments are based on chemical disinfection, radiation disinfection, etc. methods. However, these methods suffer from several disadvantages. Chemical disinfection or sterilization is a method that quickly reaches its limit, which will bring about the problem of drug residues. Another example is that chemical disinfection uses antibiotic ingredients, and bacteria become more and more resistant and develop drug resistance. Incidentally, it has a certain toxic effect on the cultured organisms. However, there are also a small amount of non-drug sterilization methods, such as the Chinese invention patent "Activation Sterilization Method of Activated Water and Its Production Device", Patent No. ZL02108447.5, which disclose...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 徐梅英徐佳晶夏灵敏吴常文
Owner ZHEJIANG OCEAN UNIV
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