Preliminary Study of Vibrio parahaemolyticus Infection in Shrimp | ||
| Suez Canal Veterinary Medical Journal. SCVMJ | ||
| Article 71, Volume 29, Issue 2, December 2024, Pages 371-381 PDF (1.04 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/scvmj.2024.390690 | ||
| Authors | ||
| Abdelazeem M. Algammal1; Fatma M. Yousseff2; Sara S. Abdelsamea* 2; Mahmoud A. Mabrouk3 | ||
| 1Department of Bacteriology, Immunology, and Mycology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt. | ||
| 2Department of Clinical Pathology Animal Health Research Institute Ismailia Branch | ||
| 3Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt. | ||
| Abstract | ||
| The present study investigated Vibrio parahaemolyticus infection in shrimp. A total of 150 freshly moribund whiteleg shrimp (Penaeus vannamei) were collected randomly from various fishermen and various locations in Ismailia Governorate, Egypt, and subjected to clinical, postmortem, and bacteriological examinations. Following bacteriological analysis, about 22 V. parahaemolyticus isolates were recovered from the examined samples. The infected shrimp exhibited observable clinical signs such as eroded cuticle, brownish to black patches scattered all over the body surface, sloughing off the abdominal appendages, and dark and reddish discoloration on pleopods, pereiopods, carapace, and tail area. The most common postmortem findings were whitish musculature, and the hepatopancreas in most cases was either congested or atrophied. On TCBS agar media, V. parahaemolyticus exhibited green or bluish-green centered colonies. Microscopically, the recovered isolates were Gram-negative, straight or slightly curved short rods and arranged singly or in chains. All the retrieved isolates were negative for the ONPG test and citrate utilization test, while, positive for oxidase, catalase, lysine decarboxylase, ornithine decarboxylase with alkaline slant, and acidic butt for the TSI test. Our research emphasizes the critical shrimp health threats posed by V. parahaemolyticus. | ||
| Keywords | ||
| Vibrio parahaemolyticus; Penaeus vannamei; Clinical and postmortem examinations | ||
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