Mechanical injuries with
secondary infection of aeromonas hydrofiller.
Notice the
stones?
Put nothing abrasive in with your koi or you will see
consequences.
These are classic wounds from fish catching their body on
slabs or copping stones which come into contact with the pond surface.
Dr. Lawrence,
We live in a small town in northern
Nevada. Winter temps can go below freezing and summer temps can get to high
90's and low 100's. We bought 3, 12 inch koi from a pond store in Reno, Nevada
and 4 smaller koi were given to us from a neighbor who bought them in
California.One of the smaller koi died in March 07 when he got sucked into the
skimmer for the pond and his tail fin got caught in the skimmer door. All koi
were aquired the summer of 2006 so the summer of 2007 is the first cold to hot
temp.
change they've gone through with
us.Reading about khv, this seems to be the vulnerable time for koi. While doing
our spring cleaning in 2007 we put all fish in a smaller tank and noticed one
of the bigger koi swimming at the top and gasping for air. I picked him up and
noticed 2 open sores on his belly. By the time we were done cleaning the pond,
he was gone. A week later after keeping an eye on remaining fish we noticed
another of our bigger koi had red patches on its side. We pulled him out and
took pictures. So far he's still alive but he is a little lethargic and doesn't
eat much, and we haven't seen any changes to the others yet. We'll be keeping
an eye on the others and I'll send pictures as they are affected.
Thanks,
Michelle
Hi Michelle
Many thanks seeing your pics one BIG
problem you have is your pond bottom never put stones slate etc on your pond
bottom all your fishes wounds could be down to mechanical injuries see under
health mechanical injuries this may not be k.h.v this may just be fish coming
into contact with abrasive surfaces koi have no protection against such
surfaces for the time being i will put your story and my reply under mechanical
injuries please keep me up dated.
Regards
Lawrence
