Epidemiological study on necrotic enteritis of neuborn piglets caused by Clostridium perfringens type C
2005
Nakabayashi, D.(Niigata-ken. Government Office (Japan)) | Ogino, H. | Nabeya, M.
In a swine farm dedicated to breeding 200 pigs in Niigata prefecture, 53 two-days old piglets born from 6 mothers had blood diarrhea in stools and 32 died immediately. We conducted disease inspection for a total of 6 pigs among these, 3 living and 3 dead, and found dark red jejunum and necrotic enteritis, from which Clostridium perfringens type C (CPC) and its toxin were detected. We hence identified the disease as CPC-caused necrotic enteritis. As a result of epidemiological study, CPC was separated from 1 out of 2 feed sample and from 1 out 15 feces samples. In an antibody test of indirect hemagglutination using the separated CPC as antigen, 16 out of 20 pigs (80%) scored 4 times or higher, or just as high as the other when they were brought to the farms, and 13 out of 15 pigs (86.3%) scored high when the symptom was found. In other words, most pigs already had the antibody when they were brought in as farm pigs. In particular, 5 mother pigs which lived with the diseased pigs in the same housing showed a high score, GM 36.8.
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