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Tuesday, February 9, 2010

Stress factors

To control fish diseases, stress factors that are causing it should be noted as follows;


The fishes bodily temperature are depending on environment conditions (water), thus, temperature is an important factor. If temperature changes occur quickly, the fishes will experience shock and this will cause them to be weak. Shallow pond water is not appropriate. Water will warm quickly during mid-day and will cool faster when it rains suddenly. New batch of fishes should be float in the pond before releasing them. Please read here .

Resources and Water Quality

Pond water should not contain organic pollutants, it should be more than 4ppm of oxygen content, ammonia content does not exceed 0.02 ppm and its pH between 6.5 - 9.0.


Handling is important in any operation, rough handling could wound your fishes. Wounds that can provide opportunities for pathogens and diseases to attacks them.

Crowd Factor

Too many fish in one pond could also cause congestion. Congestion factors will further increase the ammonia content in your pond thus decreasing the water quality. In addition, fish also experience stress.


Fish food, especially for breeding purpose are composed of natural food , phytoplankton, zooplankton and other food supplements. Food should be given preferably 2 times a day, in the morning and evening. Be careful when feeding your fishes, feeding excessively will cause decreased water quality.

Pond Features

To control and prevent fish disease from contaminating all of your pond, each pond should have a separate inlet and outlet flow.

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