The merits and demerits of fish species "four look"
Electrophoresis Machine,Electrophoresis Equipment,Laboratory Electrophoresis Machine,Gel Electrophoresis Machine Ningbo Cland Medical Instruments Co., Ltd. , https://www.ruipumedical.com
First, look at the specifications: strong fish out of pond specifications neat. Such as the individual differences, which are small and thin body for inferior species.
Second, look at the surface: high-quality fish body surface is smooth, there is a thin layer of mucus, and showed a certain luster, muscle fullness, no parasites. Inferior fish species are dull, lacking mucus or mucus, body mud, and Scales.
Third, look at body color. High-quality squid has a bright white body and is usually leucorrhea-greenish. The inferior fish is ash-white. The quality of herring body is golden yellow, and the inferior quality is purple gray. The body color of green fish is white, and the healthier the body is, the lighter the body color is. The body color of grass carp is pale yellow, gray and black mesh scales are obvious, the more robust the fish, the more obvious the pale golden yellow. The body color of other high-quality fish species; head lice are gray-gray, abdomen white; carp body yellow, tail red; carp body silver leucorrhea gray.
Fourth, look at swimming. The high-quality species swims lively, catches food, and has strong ability to pour water; when reacted in shock, the carp jumps out of the water, the eel swims in the water, the grass carp slams the water, and the fish head in the cage or live water boat Only see the fish tails constantly flapping.