There are six methods for transporting live seafood: dry transportation, water transportation, canvas bucket transportation, refrigerated transportation, drug transportation, and barbiturate transportation, as follows:
1. Dry transportation
Dry transportation is to cool the water to a temperature that causes the fish and shrimp to suspend their life activities. In this case, the life of the fish and shrimp can be maintained for more than 24 hours. After dehydration and transportation, the fish and shrimp arrive at the destination. Then put the fish and shrimp into the water to revive them. Dry transportation can not only improve the freshness of fish and shrimp, but also save freight. It is a better transportation method.
2. Water transportation
Water transportation is suitable for mussels, scallops, clams, oysters, blue crabs, etc. During transportation, regular observation and spraying of sea water should be carried out to avoid drying out. And death.
3. Canvas bucket transportation
Canvas buckets are sewn from coarse canvas. Most of the bottoms are square and a few are round, generally 0.8 to 1.2m. After it is made, it is painted with paraffin and supported by an iron frame. The quantity to be shipped can be determined according to the individual size of the fish and shrimp, the water temperature, the length of transportation and other conditions. Generally, about 100kg of fish can be loaded per ton of water.
It can be transported by train, car, horse-drawn carriage or ship. The water should be changed during the journey to supplement oxygen. The quality of the water must be handled in advance to avoid accidents. Generally, the transit time can last up to 6 days. If the bucket is regularly inflated or oxygenated, the journey will be longer. This method is safe, but the equipment and other costs are slightly higher. If the survival rate is high, it is still quite cost-effective.
4. Refrigerated transportation
Use special refrigerated transportation boxes to transport live fish. Generally, the insulated transport box uses a 20cm thick polyurethane board and a stainless steel frame. About 100L of seawater and 90L of water are injected into it, and then fish with a volume equivalent to 800L and 90L of ice are put into the box. Before closing the box mouth, add another 30L of ice.
5. Drug transportation
Use MS-222 (alkyl sulfonate meta-aminobenzoic acid ethyl ester) with a concentration of 0.2×10E-6 ~ 1×10E-6 The solution ships live fish, which can be transported over long distances for more than 40 hours after being anesthetized. After arriving at the destination, the live fish will wake up quickly when put into the pond. Or put the live fish into 500×10E-6 carbonic acid aqueous solution and transport it for 1 to 2 days, and the survival rate can reach more than 90%.
6. Barbitona transportation
Put the live fish into 7×10E-6 ~ 13×10E-6 barbitona solution for transportation. The belly of the fish will face When the water temperature is 10°C, anesthesia can last for about 10 hours. After arriving at the destination, the fish will wake up in 5 to 10 minutes after being placed in the aquarium or fish pond. If you are transporting larger fish, inject 0.1 mg barbiturate per kilogram of live fish to anesthetize the fish for 10 to 12 hours.
Extended information:
Precautions after the seafood is transported to the destination:
1. After the seafood and aquatic products arrive at the destination, they must be sorted first. Remove those that are dead, seriously injured and sick, and then rinse them by rinsing the seafood with fresh water or 1ppm potassium permanganate solution for 1 minute or disinfecting with 0.2ppm bactericide.
2. If you use city tap water as a water source for seafood storage, it must be exposed to the sun or chemically dechlorinated before use. The dechlorinated water is mixed with deep-condensed seawater or solid seawater to the required salinity to make artificial seawater, which can be used to store seafood.