Mechanical injury refers to discomfort or even death in koi caused by squeezing, collisions, friction, or severe vibrations.
(1) Preventive Measures:
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Improve fishing gear and containers to minimize capture and handling.
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Exercise caution during capture and handling, and choose appropriate timings for these activities.
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The substrate of outdoor overwintering ponds for koi should not be too hard, and the fish should be well-nourished before overwintering.
(2) Treatment Methods:
During artificial breeding, if injuries occur due to injections or improper handling, promptly apply malachite green solution to the affected area. For more severe injuries, administer streptomycin injections.
