How to prevent fish diseases

Pond preparation

Pond preparation for the purpose of:

• Make the pond clean, free of germs and toxins, with good water quality.
• Make the pond rich in natural feed for fish
• Good pond management is important in preventing disease and improving fish production.
• Proper pond preparation according to technical principles has the following benefits:
• Reduce fish diseases, eliminate toxins, viruses, and disease-causing agents in the pond, and also reduce diseases in the fish in the pond.
• Prepare a pond that is depleted of feed to rich in natural feed, and after draining the water, apply lime, dry the pond, and add fertilizer to the pond that is depleted of feed to become rich in natural food.
• Can increase the density of fish stocked and after preparing the pond with good quality can increase the density of fish stocked more than in an unprepared pond.

Fish pond management and maintenance

• During the feeding period, the management of fish ponds has an impact and relationship to the occurrence of fish diseases. If managed well, the fish will be free from disease and grow well.
• In all aspects of fish pond maintenance, the following points must be taken into account:
• Pond monitoring: Walk and inspect the pond every day, three times a day: early in the morning, at 2-3 pm, or in the evening.
• During the inspection, check the condition of the feeding fish, the gulped of the fish, and check the water temperature, dissolved oxygen in the water, and the water pH.
• Fish that gulped in the morning and sink quickly are at a low oxygen level. If the fish gulping at night, the level 0xygen is severe.
• Preventing germs from entering the pond and causing disease to fish
• Sanitize the pond, the water source, and the feed and equipment used to prevent germs from entering the fish pond.
• You must choose a good, healthy fingerling that is free of disease and has no associated viruses.

Principles of diagnosis

• To effectively treat fish diseases, we must first diagnose the fish disease clearly and then provide appropriate treatment.
• Diagnostic methods include:
• On-site disease control
• Learn about disease fish, check the condition of the fish population, the condition of swimming fish, fish gulping , and dead fish.
• Check the pond conditions: water quality and surrounding environment, such as the use of pesticides on rice crops or the discharge of chemical waste from factories near the fish pond.
• Learn about fish farming management. Poor pond management, such as over-fertilizing, feeding with insufficient nutrients, or overfeeding, causes polluted water, and cause diseases breakout.
• Catching fish with nets causes injuries to the fish, and prevent the of harmful fish such as snails, cockroaches, and birds, which are agents of disease transmission to fish.

Some important tips for raising carp as a family scale

• Cleaning the pond before stocking fish is a very important factor in making your fish farming successful.
• If there is a single predator species in the rice field that will eat all the fish you raise in a short time.
• Regular fertilization to keep the pond water green is a very important factor in making your fish grow well.
• Sunlight is an important factor in making natural feed or plankton grow well in the pond after fertilization.
• Cultring fish in a pond with a canal connected to the rice field is a good way to help your fish grow faster and you can also reduce the cost of buying fish feed.