Fish cages have high stocking densities, small space, high prevalence, and rapid infection. Adopting the usual method of pouring medicine directly in the box often causes the disease to be unrecoverable due to the rapid exchange of water in cages and the short duration of drug efficacy. Small, and the growing number of cages, the impact on the water quality of large water surface intensified, increasing pathogens, leading to serious cross-infection. Therefore, adopting appropriate methods can not only effectively cure and eliminate fish diseases, but also save costs.
For ease of application, when the cage is set up, install a net rope at the midpoints of the four corners and the four bottom edges and fasten the other end to the cage bracket. Also make a sack that is slightly larger than half the size of the cage.
First, prevent medication
The prevention is based on traditional Chinese medicine, and methods of hanging bags and feeding baits are used, supplemented by other drugs, and methods of splashing and feeding baits are adopted. Due to the influence of drugs, feed, water quality, and density, liver and gallbladder syndrome has become more common in recent years. The selection of traditional Chinese medicines is relatively safe, such as Euphorbia pulcherrima, black locust leaves, calamus, pine needles, buckwheat leaves, ramie leaves, etc. Use can also be used in a variety of ways.
Hanging bags: Each cage selects four points, one deep and one shallow, and two hanging bags, so that the entire cage body reaches a certain drug concentration.
Splashing: Raise the net ropes that are preset at the four corners and the four bottom sides of the cage so that all the fish are on the water with a water depth of 1 meter or more, and increase the concentration to 10 to 20 times more than half an hour.
Second, the treatment of drugs
1. Fish species: The activity intensity of the fish species is relatively small, the fish species should be rushed to a corner of the cage, put on a cloth bag, and soaked for treatment. The concentration of the drug is 10 to 20 times of the normal dose. Do not spill it once. Slowly spilled, medication time is determined according to the fish's response to the drug, usually to stop when the diseased fish has a poisoning reaction.
2. Adult fish: The big fish have a higher activity intensity and should not be clustered too densely. The fish can be rushed to the cage in 1/3 or 1/2 range (depending on the number of fish). The water depth is less than 1 meter. Separate, and then put on a cloth bag (of course, the entire cage bag can also, but the workload is relatively larger), until the fish swimming eased and began to pour medicine, the concentration increased to 10 to 20 times, the same time with the fish species method.
3. Feeding baits: hand feeding, sprinkle more of each material, sprinkle more area, as much as possible to eat more food-abundant fish.
Third, medication courses
The biggest difference between cages and pond medications is that the drug has a short duration of action. Therefore, external medications should be used at least twice a day. The number of medication days depends on the type of medication and the severity of illness. Bacterial diseases last for at least two days; parasites are at least one day, and secondly. , Sterilize each time in three days.
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