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Crustacean larva raising method and apparatus

A technology for crustaceans and larvae, which can be used in fish farming, animal feed, animal feed, etc., and can solve the problem that juvenile shrimp cannot be obtained

Inactive Publication Date: 2002-08-07
AUSTRALIAN BAY LOBSTER PRODRS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] - can't get juvenile shrimp

Method used

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  • Crustacean larva raising method and apparatus
  • Crustacean larva raising method and apparatus
  • Crustacean larva raising method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0136] Introduction and containment system

[0137] Seawater is fed continuously to a 1 μm filter and then to a UV sterilizer. Seawater was supplied at 30 liters per animal, while water was exchanged at a 100% water exchange rate. The water temperature is kept between 26 and 27°C. Sterilized seawater is supplied to a circular tank with a capacity of 200 liters. There is a black plastic cover on the top of the container. The tank is ventilated at a rate greater than 2 liters per minute. Sea water is supplied from one end at the bottom of the tank and discharged from the other end at the top of the tank.

[0138] Oviposit females are introduced into the tanks and fed every evening. Remove leftovers the next morning. Food was ax clams sterilized with a 0.1% chlorine solvent for at least one hour and then carefully washed with UV-disinfected seawater before feeding.

[0139] When the embryos turn a visible amber-brown in color, individual ovipositous females are transferred...

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Abstract

A crustacean larva raising method includes the steps of providing a tank (50) to hold larva raising medium, continuously supplying sterilised, filtered larva raising medium to the tank (50) through outlets adapted to cause horizontal circulation of the medium and at an outlet flow velocity preventing larva damage, continuously draining the medium through a drain assembly including a larva screen and maintaining the medium at a selected temperature. Apparatus to carry out the crustacean larva raising method comprises of modular channel sections (51, 52) of the tank (50), which are bolted and sealed together, two sub tanks (53, 54), a UV steriliser unit (55) incorporating temperature control means and a submersible pump (56) to circulate filtered and pre-sterilized medium. A crustacean larva feeding composition and a method for preparing such a composition are also provided.

Description

technical field [0001] The invention relates to a raising method and equipment for crustacean larvae. [0002] The feeding method and equipment for larvae of the present invention are particularly applicable to but not limited to flat shrimp (Thenus spp.), and this application will also be used as an example to illustrate the purpose of the present invention. However, it should be understood that the present invention and inventive principles may also be used in other species applications, such as rock lobster and slipper lobster larvae. Background technique [0003] Many attempts have been made to develop methods of rearing commercial species of beetles. To illustrate numerically these rearing methods focusing on rock lobster and Pseudochandra larvae, a brief description of these methods is given in Table 1. Table 1 [0004] Variety Inventor Survival Rate Survival Quantity Tank Size South African Rock Lobster Kittaka (1988) <1% 1 out of 15,000 100l (Jasus lalandii) So...

Claims

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Application Information

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IPC IPC(8): A01K61/00A01K61/59A01K63/00A01K63/04A01K63/06A23K10/22A23K50/80A23L17/40
CPCA23K1/188A23K1/103A01K61/005A23K10/22A23K50/80A01K61/59Y02A40/81A01K67/033
Inventor 萨蒂士·米卡米
Owner AUSTRALIAN BAY LOBSTER PRODRS LTD
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