"Six Looks" to Determine Whether a Fish Is Ill
2021-04-30 14:05:32
Looking at the health of the fish is generally a group swim, flexible action, quick response, scared to dive into the water. Diseased fish usually travel alone out of the group, slow action, unresponsive, scared slightly to the bottom of the water, then slowly surfaced. When the fish has parasites such as sporozoites, fish gills, etc., it will madly spin or continue to jump on the surface of the water.
Looking at the food-eating situation, healthy fish have strong ability to catch food and have stable food intake. If fish food is found to be gradually reduced, or even hunger strikes, it is likely that the fish is sick.
Look at the health of the fish, with a small head, thick back, and good plumpness. Diseased fish are small and large, with narrow backs, dry cockroaches, thin muscles, and dark or dark bodies. In addition, if the content of heavy metals in the water is too high, the fish will bend and deform.
Look at the inhabiting environment, enteritis, erythroderma, powdering disease, etc. occur in acidic water environment. Chinese parasitoids, maggots and other parasitic diseases occur in weakly alkaline water environment; fish pan pool phenomenon occurs in In an oxygen-deficient environment.
Looking at seasonal changes in different fish diseases have different water temperature, according to different seasons to distinguish certain fish diseases. For example, fish hemorrhagic disease occurs in the high-temperature season from July to September; vertical scale disease occurs in the spring and autumn seasons; watery mildew mostly occurs in the early autumn and early spring.
In the growth stage, the sword leeches only harm the fry which has just hatched for 1 week. The powdering disease and white head and white beak disease often occur in the fry stage. Hemorrhagic disease of grass carp and enteritis of herring occur at the stage of fingerlings, red pigment, and print diseases. Occurs at the adult stage.
Looking at the food-eating situation, healthy fish have strong ability to catch food and have stable food intake. If fish food is found to be gradually reduced, or even hunger strikes, it is likely that the fish is sick.
Look at the health of the fish, with a small head, thick back, and good plumpness. Diseased fish are small and large, with narrow backs, dry cockroaches, thin muscles, and dark or dark bodies. In addition, if the content of heavy metals in the water is too high, the fish will bend and deform.
Look at the inhabiting environment, enteritis, erythroderma, powdering disease, etc. occur in acidic water environment. Chinese parasitoids, maggots and other parasitic diseases occur in weakly alkaline water environment; fish pan pool phenomenon occurs in In an oxygen-deficient environment.
Looking at seasonal changes in different fish diseases have different water temperature, according to different seasons to distinguish certain fish diseases. For example, fish hemorrhagic disease occurs in the high-temperature season from July to September; vertical scale disease occurs in the spring and autumn seasons; watery mildew mostly occurs in the early autumn and early spring.
In the growth stage, the sword leeches only harm the fry which has just hatched for 1 week. The powdering disease and white head and white beak disease often occur in the fry stage. Hemorrhagic disease of grass carp and enteritis of herring occur at the stage of fingerlings, red pigment, and print diseases. Occurs at the adult stage.
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