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...

Examples

Embodiment 1

[0019] A method of out-of-water transportation using carbon dioxide anesthetized golden pomfret is as follows:

[0020] 1) Preparation of carbon dioxide-saturated seawater solution: inject seawater into the bucket, the temperature of the seawater is room temperature, then pass carbon dioxide gas into the seawater until it reaches a saturated state, and stop feeding carbon dioxide;

[0021] 2) Carbon dioxide anesthesia: put fresh golden pompano into carbon dioxide-saturated seawater solution, the weight ratio of water to fish is not less than 3:1, and the anesthesia time is 10 minutes. When the fish is under moderate anesthesia (expressed as: fish When the swimming speed is slow, the body loses balance, the breathing slows down, and the visual and tactile responses to stimuli decrease), the fish is taken out and put into the box;

[0022] 3) Out-of-water transportation: transport the fish in the box out of water, control the temperature of the fish at 20°C during the transporta...

Embodiment 2

[0024] A method of out-of-water transportation using carbon dioxide anesthetized golden pomfret is as follows:

[0025] 1) Preparation of carbon dioxide-saturated seawater solution: inject seawater into the bucket, the temperature of the seawater is room temperature, then pass carbon dioxide gas into the seawater until it reaches a saturated state, and stop feeding carbon dioxide;

[0026] 2) Carbon dioxide anesthesia: put fresh golden pomfret into carbon dioxide-saturated seawater solution, the weight ratio of water to fish is not less than 3:1, and the anesthesia time is 15 minutes. When the swimming speed is very slow, the body loses balance completely, the abdomen is upward, the breathing is difficult, and the visual and tactile responses to stimuli are almost lost), fish out the fish and put them into the box;

[0027] 3) Out-of-water transportation: transport the fish in the box out of water. During the transportation, control the temperature of the fish at 10°C. At the ...

Embodiment 3

[0029] A method for out-of-water transport of tilapia anesthetized with carbon dioxide is as follows:

[0030] 1) Preparation of carbon dioxide-saturated fresh water solution: inject fresh water into the bucket, the fresh water temperature is room temperature, then pass carbon dioxide gas into the fresh water until it reaches a saturated state, and stop feeding carbon dioxide;

[0031] 2) Carbon dioxide anesthesia: put fresh tilapia into a carbon dioxide-saturated fresh water solution, the weight ratio of fresh water to fish is not less than 3:1, and the anesthesia time is 5 minutes. When the fish is lightly anesthetized (specifically: When the swimming speed of the fish starts to slow down, the body starts to lose balance, the breathing starts to slow down, and the visual and tactile responses to stimuli decline), fish out the fish and put them into the box;

[0032] 3) Out-of-water transportation: transport the fish in the box out of water, control the temperature of the fis...

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...

Examples

Embodiment 1

[0019] A method of out-of-water transportation using carbon dioxide anesthetized golden pomfret is as follows:

[0020] 1) Preparation of carbon dioxide-saturated seawater solution: inject seawater into the bucket, the temperature of the seawater is room temperature, then pass carbon dioxide gas into the seawater until it reaches a saturated state, and stop feeding carbon dioxide;

[0021] 2) Carbon dioxide anesthesia: put fresh golden pompano into carbon dioxide-saturated seawater solution, the weight ratio of water to fish is not less than 3:1, and the anesthesia time is 10 minutes. When the fish is under moderate anesthesia (expressed as: fish When the swimming speed is slow, the body loses balance, the breathing slows down, and the visual and tactile responses to stimuli decrease), the fish is taken out and put into the box;

[0022] 3) Out-of-water transportation: transport the fish in the box out of water, control the temperature of the fish at 20°C during the transporta...

Embodiment 2

[0024] A method of out-of-water transportation using carbon dioxide anesthetized golden pomfret is as follows:

[0025] 1) Preparation of carbon dioxide-saturated seawater solution: inject seawater into the bucket, the temperature of the seawater is room temperature, then pass carbon dioxide gas into the seawater until it reaches a saturated state, and stop feeding carbon dioxide;

[0026] 2) Carbon dioxide anesthesia: put fresh golden pomfret into carbon dioxide-saturated seawater solution, the weight ratio of water to fish is not less than 3:1, and the anesthesia time is 15 minutes. When the swimming speed is very slow, the body loses balance completely, the abdomen is upward, the breathing is difficult, and the visual and tactile responses to stimuli are almost lost), fish out the fish and put them into the box;

[0027] 3) Out-of-water transportation: transport the fish in the box out of water. During the transportation, control the temperature of the fish at 10°C. At the ...

Embodiment 3

[0029] A method for out-of-water transport of tilapia anesthetized with carbon dioxide is as follows:

[0030] 1) Preparation of carbon dioxide-saturated fresh water solution: inject fresh water into the bucket, the fresh water temperature is room temperature, then pass carbon dioxide gas into the fresh water until it reaches a saturated state, and stop feeding carbon dioxide;

[0031] 2) Carbon dioxide anesthesia: put fresh tilapia into a carbon dioxide-saturated fresh water solution, the weight ratio of fresh water to fish is not less than 3:1, and the anesthesia time is 5 minutes. When the fish is lightly anesthetized (specifically: When the swimming speed of the fish starts to slow down, the body starts to lose balance, the breathing starts to slow down, and the visual and tactile responses to stimuli decline), fish out the fish and put them into the box;

[0032] 3) Out-of-water transportation: transport the fish in the box out of water, control the temperature of the fis...