柱状病，斑点叉尾鮰
Post-mortem photograph of a channel catfish with columnaris disease; notice the yellow to brown lesions on the head and mouth, including severe ulceration and necrosis.
Courtesy of Dr. Ruth Francis-Floyd.
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Post-mortem photograph of a channel catfish with columnaris disease; notice the yellow to brown lesions on the head and mouth, including severe ulceration and necrosis.
Courtesy of Dr. Ruth Francis-Floyd.
