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A Detailed Guide to Selecting and Using Fishery Drugs: A Practical Guide for Farmers

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When selecting fishery drugs, the "three certificates" must be complete (production license, production approval certificate, execution standard number), and there must be a product quality certificate. Legitimate fishery drug manufacturers have applied for registered trademarks; the trademark design, image, text, etc. are indicated on the packaging, labels, and instructions, and are marked with the words "registered trademark" or a registration mark. The quality of the inner and outer packaging materials of fishery drugs should be good. Generally, the packaging is marked with instructions for use, trade name, chemical name, drug composition, content, production approval number, manufacturer name, address, production batch number, production date, validity period, indications or functions and main treatments,

Selection

When selecting fishery drugs, the "three certificates" must be complete (production license, production approval certificate, execution standard number), and there must be a product quality certificate. Legitimate fishery drug manufacturers have applied for registered trademarks; the trademark design, image, text, etc. are indicated on the packaging, labels, and instructions, and are marked with the words "registered trademark" or a registration mark. The quality of the inner and outer packaging materials of fishery drugs should be good. Generally, the packaging is marked with instructions for use, trade name, chemical name, drug composition, content, production approval number, manufacturer name, address, production batch number, production date, validity period, indications or functions and main treatments, usage, dosage, withdrawal period, transportation and storage conditions, and other contents.

Fishery drugs come in various dosage forms. Normal powder fishery drugs are dry and loose, with uniform particles and consistent color. Tablets have a neat and complete appearance, uniform color, and a smooth surface. If powder forms caking, has an unusual odor, or shows signs of swelling; if tablets crack or become damp; if liquid preparations show precipitation, turbidity, or foreign matter; or if the liquid medicine leaks easily, do not purchase them. Fishery drugs produced by different manufacturers may have the same ingredients, but their trade names, packaging, and active ingredient contents may differ, and their prices may vary greatly. When purchasing, compare them carefully, calculate the unit cost of the effective dosage, and try to buy fishery drugs at a lower price.

Use

Splashing fishery drugs

Accurately measure the water body and calculate the dosage. Drugs that need to be dissolved before splashing should preferably be dissolved in wooden (plastic) non-iron containers; some fishery drugs are corrosive and will corrode the container. When splashing drugs, follow the procedure of feeding first and then splashing the drug; it is forbidden to splash drugs while feeding. Do not splash drugs when fish are gasping at the surface or just after surface gasping has disappeared. Splashing drugs is generally done in the morning on sunny days; light-sensitive drugs should preferably be applied in the evening. Fishery drugs should be splashed from the upwind side toward the downwind side, with more drug applied in deep-water areas and at feeding grounds, and less in shallow-water areas. Residual drug residue must not be dumped at will, to avoid poisoning people, poultry, and livestock.

Feeding medicated bait

First read the instructions for use; if there is anything unclear, consult aquaculture technicians. Master the drug's properties, identify the cause of disease accurately, and apply the right medicine for the illness. Choose feed that fish find palatable to prepare medicated bait and mix it thoroughly. Before feeding medicated bait, stop feeding for one day to make the fish school hungry. Under normal weather conditions, medicated bait is generally fed in the morning, and the feeding amount should be appropriately reduced compared with normal, so that the fish can fully eat the medicated bait and the therapeutic effect is improved.

When two or more drugs are mixed for use, pay attention to drug compatibility to prevent antagonism that reduces drug efficacy, or the formation of more toxic drugs that cause fish death. Fishery drugs should be used alternately; the same drug must not be used for a long time, to prevent drug resistance. Do not use drugs at excessive doses or below the specified dose.

After medication, pay attention to observing the activity of the fish and watch for any abnormal conditions so that rescue measures can be taken. At the same time, keep observation and medication records to accumulate experience for future disease prevention and control.

The use of prohibited drugs is forbidden. Common prohibited drugs in aquaculture include: mercurous nitrate, mercuric acetate, mercuric chloride, malachite green, sulfaguanidine (sulfaguanidine), sulfathiazole, furazolidone, nitrofurazone, erythromycin, chloramphenicol, ciprofloxacin, olaquindox, sodium pentachlorophenate, hexachlorocyclohexane, toxaphene, DDT, etc.

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