Live shrimp transport technology

Green shrimp is delicious and nutritious, and it is well sold in domestic and foreign markets. It is inevitable that long-distance or short-distance transportation will be required for the exchange of shrimps between regions. Based on the practice of live shrimp transportation in the shrimp production area in recent years, this article describes the preparation methods and precautions for the transportation of green shrimp for reference.
I. Preparation for the transport of shrimp
1. Formulate a thorough transportation plan. The factors that must be taken into consideration before transportation include the quantity, specifications and uses of the shrimps to be transported, the place of departure, the transportation route and the method of shipment, the time of departure and arrival, the composition and specific division of the escort personnel, the replenishment of water, water change, water spray, and transportation infiltration. Oxygen and other management measures and various transport equipment and spare tools.
2, live shrimp preparation. Live shrimp is raised in order to gather a certain amount to meet the volume of transportation tools. Short holding time can be stored in a cage. The cage is placed in a river ditch or lake where the bottom is flat, the mud is hard, the water flow is slow, the water quality is good, the leeward sun is shining, the sound is small, and the water depth is more than 2 meters. For a longer period of time, ponds of appropriate sizes can be selected and dredged, sterilized and disinfected in advance. The ponds are close to water sources and highways for easy management, picking up and shipment.
3, a detailed survey of the environment along the way. To investigate the sources of water and water quality along the way, the transportation of vehicles or ships must be determined where the water is changed or held. The industrial sewage, tap water with high chlorine content, and farmland water with pesticides are harmful to shrimps and cannot be used to change water. Shrimp is generally replaced by clean river water, lake water and well water. Other water sources must be treated before use. At the same time, we must pay close attention to the weather forecast, in the wind, heavy rain and other temperatures become foggy days, snow days, low pressure weather to avoid the sky so as not to affect the survival rate of shrimp.
Second, several methods of live shrimp transportation
1, dry and wet shrimp. Shrimp tools include crab seedling boxes, plastic trays and canvas bags. The box for the crab seedlings is a fir frame with an iron screened window as the bottom and a louver opening around it for ventilation and water spray. The specification is 603,312 cm. It can be stacked and transported. The lid must be covered. Plastic trays are ordinary food containers with holes around them. Crab box and plastic tray at the bottom of brown sheets, loofah bars or sponges, sprinkle with clean water, and then put the live shrimp gently loaded on the top loading and unloading, during the transport every 30 minutes spray 1 water, maintain a certain humidity . The canvas bag contains a certain amount of shrimp and water, which is loaded on a car or motorcycle to reach its destination. This method is most suitable for transportation of commercial shrimp in short-distance and low-temperature seasons. The method is simple, the transportation volume is large, the cost is low, and the effect is ideal.
2, live water shipping shrimp. It is to open the hole in front of and behind the cabin of an ordinary ship so that the river water enters the water from the front hole due to the advancing of the ship, and the water is discharged from the rear hole to make the water in the cabin change from "dead" to "living". The facilities on board are simple, with only two hatches and two bilge flap valves. Set up the cage in the cabin and put the live shrimp in the tank so that it can be removed in time after arriving at the destination. In areas where the river water environment is not polluted and when the temperature is low, the loading density and survival rate are high. The use of live water for shrimp transport in poor conditions during hot seasons and in contaminated rivers does not work well. This method is suitable for transporting commercial shrimps, larvae and broodstock.
3, live water transport shrimp. This is the use of transport vehicles to transport shrimp. It consists of automobiles, live fish tanks and aeration systems. One is that the oxygen-increasing system is powered by the auxiliary machine, and the movable water tank can be disassembled: the other is that the power of the oxygen-increasing system comes from the automobile transmission system, and the pump can be driven by the power box, which can also be used by one vehicle. Pay attention to water quality and water temperature during transportation, and pay attention to water quality when adding water or changing water. This method has a large volume of traffic, a wide range of adaptation, a large amount of load, a flexible and convenient, and can be transported for years.
4, nylon bag oxygenation shrimp. Take a double nylon bag, specifications about 4260cm. Before transporting the shrimp, check whether the nylon bag leaks, then inject fresh water of 1/3 of the space, and then release the live shrimp, then oxygenate, fasten, transport, and prepare a small light portable belt gas cylinder with spare Nylon bags and water. During the transportation, it was found that the oxygen bag was slightly damaged. It should be timely affixed with a tape. If the damage is serious, use a new nylon bag immediately. This method is suitable for the transport of shrimp or broodstock, can also be transported young shrimp, long transportation time, high survival rate, can be transported all year round, but the transport volume is limited, the excessive shipping density affects the survival rate.
Third, transportation of shrimp should pay attention to matters
1, to avoid the oyster shells shipped. Due to the high mortality rate of soft-shelled shrimps, large numbers of clams should be avoided. Normal winter water temperature is low, juvenile prawns will not appear a large number of clam shell phenomenon, but after the spring water temperature rises, shrimp enters the growth stage, this time, especially by fishing and other operations when the mechanical damage, or during fishing, holding time in the larger The temperature difference stimulates a large number of simultaneous clam shells. At this time, transportation must pay attention to this issue.
2, pay attention to the physique of shrimp. To select healthy, disease-free and non-injury shrimp, because of the poor adaptability of sick shrimps and thin shrimps to changes in the external environment such as lack of oxygen, they cannot withstand transport stimuli and are prone to death. Quarantine of broodstock and shrimp should be conducted prior to transport to prevent the introduction of the disease into the new culture area.
3, strengthen management and inspection. Before shipment and during transit, check whether the shrimp containers are damaged and whether the shrimp activities are normal. Whether there is floating head or death; there is no significant change in water wetness and oxygen content. The live water craft also checks whether the water flow is smooth or the water flow is slow.

Posted on May 23, 2018