Nine treatments for Anchor head Disease of Fish

Anchorage is a parasitic copepod, which is very harmful to fish. There are four common anchor heads: polymorphic anchor head, carp anchor head, grass carp anchor head and four-ball anchor head. The anchor head fish can parasitize on both juvenile and adult fish in that year, with its head under the host's muscles or scales, and its chest and abdomen exposed outside the host. Needle-like pathogens can be seen with the naked eye at the parasitic part of the anchor head. If the anchored turtle is parasitized in the fish for a long time, protozoa and algae are often found on the surface of the fish, and the naked eye looks like a bunch of gray cotton wool. In the early stage of the disease, the parasitic fish showed restlessness, loss of appetite, and then gradually lost weight, swimming slowly, until death. Where the fish body is parasitized by polymorphic anchor head, the surrounding tissue is inflamed, red and swollen, and there are erythema caused by bleeding; in the part parasitized by grass carp and carp anchor head, you can see that a scale near the worm body is "eaten" into a gap, the color becomes light, and congested erythema also appears in the parasitic place of the worm body, but generally does not swell into a tumor. For the disease of fish anchor head, in addition to using quicklime 150 kg per mu of water surface per meter of water depth to prevent the disease, the following nine methods can be taken to prevent the disease.

1. If it is found that there is an anchor head on the free-range fish, it should be soaked in potassium permanganate solution of 10 × 10, 6, 20, 10, 6 and 6 for 1.5 hours before stocking.

Second, if the disease occurs during the feeding period, 90% of the crystal trichlorfon of 0.3 × 10 meters 6 and 0.5 × 10 meters 6 can be sprinkled in the whole pool to kill the larvae of Anchor head Trichlorfon. For example, when most of the infected anchor heads of fish are "child worms", they can be applied twice in a row within half a month; when they are mostly "strong worms", they can be applied once; and "old worms" can not be applied.

Third, in sick fish ponds, 400 kilograms of fermented pig manure or cow manure are applied per mu of pond water per meter, which has a better curative effect.

Fourth, each mu of fish ponds are tied into 5-6 bundles of pine leaves of 10-15 kilograms, inserted and hung in the water around the food, or the pine leaves are mashed and soaked and sprinkled throughout the pond.

Fifth, soak in the pond with 150 kilograms of fresh pig grass and 250 kilograms per mu of water per meter. If the intake and drainage is convenient, you can first discharge the pool water, leaving only 30 cm deep water, and then put 35 to 40 kilograms of fresh pig half grass into the water.

Sixth, per mu of fish pond per meter of water depth to feed 100,150kg of distiller's grains, 3 to 7 days can be effective.

7. the average water depth per mu of fish pond is 1.3m to 1.7m. Every day, 5 kg of pig blood is mixed with bean dregs or peanut cake (soaked and ground), and then sprinkled and fed to the whole pond for 3 days.

8. Use 100 grams of thunder pills and pomegranate peel, add 10 kilograms of water, boil for 4 hours and 5 hours, pour out when the liquid is only 2.5 kilograms, then dilute it to the original amount of water, soak the diseased fish for 20 minutes and then put it back into the pond. After 3 days, all the anchor head insects parasitic on the fish will fall off.

9. Sprinkle turpentine and fine sand in the whole pond, using 1 gram of turpentine per cubic meter of water. If the water surface is large or the disease of the fish is serious, the dosage can be appropriately reduced if the drug is used again after 3-5 days. Turpentine and fine sediment should be mixed and used.