Good fish species are the key to successful fish farming, and proper transportation methods can improve the survival rate of fish species. First, the choice of fish species 1. Appearance fish species color is clear, full back and tail muscles, scales, fins intact, no injuries on the body surface, no parasitic parasites. 2. Vitality In the cage, the species swims actively, and the water repellent is strong. It is dense in one of the cages, with the head facing downwards and the tail rising upwards. 3. Body weight and body length Fish body weight has a certain relationship with body length. In general, 1 kg of fish species with a total length of 13 cm, 48 grass carp, 44 white pheasants, 42 pods, 40 breams. . The more the mantissa is, the thinner the fish body is, the worse the constitution, and the less the mantissa, the stronger the constitution of the fish species. Second, the species transport 1. Pay attention to early winter spring insulation fish scales close, weak activity, low oxygen consumption, easy to injury, high survival rate, but you must choose sunny, pay attention to insulation. 2. Preparation before transportation Before the fish species are transported, no matter what transportation method is used, the fish species must be prepared for loading, unloading, disinfecting tools, disinfecting drugs, and disinfection of the pond before transportation. 3. Fish training species 1 to 2 days before the start of the fish species, it is necessary to exercise 2 to 3 times of fish nets, or to concentrate the fish species in the cages one day to increase the resilience of the fish species. 4. Transport Density A reasonable transportation density can increase the survival rate of transportation. The transportation density should be determined according to the type, specification, water temperature, water quality, transportation method and transport time of the fish. Under normal circumstances, the resistance to hypoxic capacity of different fish species from strong to weak is: squid - grass carp - flower white peony - group head locust. When the water temperature is 10°C, a wooden barrel or canvas basket containing 500 kg of water can hold about 5000 cm of 13 species of carp, or 8,000 grass carp of the same specifications. The transport time is 3 to 5 hours. The transport time is too long. Reduce the transport density of fingerlings. 6040 cm plastic bags are used for oxygenation and transportation. When 10 kg of water are loaded, 300 species of fish species of the same species can be transported, 350 pieces of grass carp are transported, and the transportation time is 12 hours.
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