Out-of-water transportation method by using carbon dioxide for anaesthetizing golden pompano and tilapias

Abstract

The invention discloses an out-of-water transportation method by using carbon dioxide for anaesthetizing golden pompanos and tilapias. The method includes placing live fishes into a saturated carbon dioxide aqueous solution for a certain period to enable the fishes to be anesthetized and comatose, then fishing the fishes out, placing the fishes into a basket, performing out-of-water transportation, controlling temperatures of the fishes during transportation, simultaneously, spraying water on the fishes at intervals until fish bodies are all humid, and enabling the anaesthetized and comatose fishes to keep low temperatures and humid states during transportation. Golden pompanos and tilapias can survive for more than four hours and seven hours respectively. The out-of-water transportation method has the advantages that live golden pompanos and the tilapias can survive for more than four hours and seven hours respectively during the out-of-water transportation after being anaesthetized by the carbon dioxide, and the method is suitable for live fish transportation of processing enterprises of golden pompanos and tilapias.

Description

technical field [0001] The invention belongs to the technical field of aquatic product processing. Specifically, it is a method of out-of-water transportation using carbon dioxide to anesthetize golden pomfret and tilapia. Background technique [0002] At present, live fish are mainly transported by live fish transport vehicles. The fish carrying box is generally made of steel plate, and the fish-water ratio in the box is generally between 1:1.5 and 1:2. Type or pure oxygen type aerator, so during the transportation of live fish, a large amount of water needs to be carried at the same time, resulting in high transportation costs. Because the water body in the tank will shake violently during transportation, the fish will be easily damaged or even die; at the same time, if the dissolved oxygen in the water in the fish tank is too low, the fish will suffocate and die. Therefore, after a long period of transportation, the fish will survive At the same time, due to injuries of...

AI Technical Summary

Problems solved by technology

Currently commonly used chemical anesthetics include ethyl m-aminobenzoate methanesulfonate (MS-222), isoeugenol, clove oil, benzocaine, 2-phenoxyethanol, etc., but chemical anesthetics have potential safety hazards of drug residues Among them, only MS-222 is the only fish anesthetic approved by the US FDA, but there are strict restrictions on its use: it is required to be kept for 21 days after using MS-222 before consumption

However, in the production and processing process of the enterprise, it is impossible to temporarily raise them for such a long time. Therefore, the use of drug anesthesia for live fish transportation is only limited to the transportation of broodstock and fry, and is not suitable for the transportation of commercial adult fish.