Fish species quality identification methods, teaching you to accurately select high-quality fish species

I. Check whether the size is uniform. For the same species of fish, those with uniform size when harvested from the pond generally have a relatively robust constitution. II. Check whether the fish body is glossy. Robust fish species have a layer of mucus on the body surface to protect the scales and skin from pathogen invasion, so the body surface shows a certain gloss. However, diseased, weak, or injured fish species lack mucus on the body surface and have no gloss, or some diseased fish have excessive mucus on the body surface and also lose their gloss. III. Check the body color of the fish species. The body color of the fish species reflects their quality. The body surfaces of high-quality fish species are respectively:

Black carp: The body surface is bluish-gray with white, and the lighter the body color, the more robust the constitution.

Grass carp: The body is light golden-yellow with gray-black net-like markings, the scales are obvious, and the more robust the fish, the more obvious the light golden-yellow color.

Blunt snout bream: The body color is dark gray, and the more robust the fish, the lighter gray the body surface color becomes.

Silver carp: The back is silver-gray, and the sides and belly are silver-white.

Bighead carp: The body surface is light golden-yellow, with black markings not obvious. The more robust the fish, the less obvious the black net-like markings and the more prominent the golden-yellow color.

Common carp: Because of different varieties, their body surface colors differ, generally including bluish-yellow, red, or golden-yellow, etc. Regardless of the body color, the more obvious the bright gold color, the more robust the fish. IV. Check the swimming behavior of the fish species. Robust fish species swim actively. V. Sampling inspection. Select fish species of the same size and weigh them to 0.5 kg, count the number of fish, then check the high-quality fish species size identification table. If the number of fish per 0.5 kg in that size grade is less than the standard number, then they are high-quality fish species.