1, dry goods transportation
Dry transportation is to cool the water to a temperature that makes the fish and shrimp suspend their life activities. In this case, fish and shrimp can last for more than 24 hours. After dehydration and transportation, put it into water to revive. Dry transportation can not only improve the freshness of fish and shrimp, but also save freight, so it is a better mode of transportation.
2. Water spraying transportation
Water jet transportation is suitable for mussels, scallops, meretrix meretrix, oysters and blue crabs. During transportation, observe and spray seawater regularly to avoid death due to dryness.
3. Canvas bucket transportation
Canvas barrels are made of canvas, most of which are square and a few are round, usually 0.8 ~1.2m. After the production, it is coated with paraffin and supported by iron frame. The shipment quantity can be determined according to the individual size of fish and shrimp, water temperature, transportation time and other conditions. Generally, each ton of water can hold about 100kg of fish.
It can be transported by train, car, carriage or ship. Oxygen is supplemented by changing water on the way, and the water quality must be treated in advance to avoid accidents. The general journey can last for 6 days. If the bucket is often inflated or oxygenated, the journey will be longer. This method is safe, but the equipment cost is slightly higher. If the survival rate is high, it is still quite cost-effective.
4. Frozen transportation
Use special refrigerated transport boxes to transport live fish. The insulation monster of the transport box is generally a 20cm thick polyurethane board with a stainless steel skeleton. Inject about 100L seawater and 90L water, and then put 800L fish and 90L ice into the box. Before closing the box mouth, add 30L ice.
5. Drug transportation
Live fish can be transported by MS-222 (ethyl m-aminobenzoate alkyl sulfonate) solution with the concentration of 0.2×10e-6 ~10e-6. After anesthesia, live fish can be transported for more than 40 hours. After arriving at the destination, live fish will wake up quickly when put into the pool. Or put the live fish in 500× 10E-6 carbonic acid solution and transport it for 1 ~ 2 days, and the survival rate can reach over 90%.
6. Transportation of barbiturates
The live fish are transported in 7× 10e-6 ~13×10e-6 barbiturate solution, and the belly of the fish is upward, so it can be anesthetized for about10 hour at the water temperature of 10℃. After arriving at the destination, you can wake up in 5 ~ 10 minutes after putting it in an aquarium or fish pond. If larger fish are transported, injecting 0. 1mg barbital sodium per kilogram of live fish can anesthetize the fish 10 ~ 12 hours.
Extended data:
Matters needing attention after seafood is delivered to the destination:
1. Seafood and aquatic products should be sorted first after they arrive at their destination, and the dead, seriously injured and sick should be removed before cleaning. The cleaning method is to clean seafood with fresh water or 65438±0 ppm potassium permanganate solution for 65438±0min or disinfect with 0.2ppm chlorfenapyr.
2. If the city tap water is used as the water source for preserving seafood, it must be exposed to the sun or chemically dechlorinated before use. The dechlorinated water is adjusted to the required salinity with deep seawater or solid seawater to make artificial seawater, which can be used to store seafood.