International Journal of Fisheries and Aquatic Studies
2019, Vol. 7, Issue 6, Part E
Gut bacterial diversity of wild and cultured penaeus vannameiAuthor(s):
Ramya Deepika K, Janakiram P, Sunil kumar D, Surendran V, Madhuri M and Geetha SAbstract:
The pacific white shrimp, Penaeus vannamei
is a marine crustacean which has economic importance in the world market. To ensure sustainability of the shrimp industry, production capacity and disease outbreak prevention must be improved. Understanding healthy microbial balance inside the shrimp gut and Hepatopancreas can provide a benchmark study and facilitates to adapt better farming practices. Gut micro biome of cultured and wild P vannamei
were analyzed and obtained eight bacterial isolates from the former and four from the latter. Out of the eight isolates obtained from the gut of cultured shrimp, four isolates were identified as Vibrio tubiashii, Vibrio gazogenes
, Vibrio proteolyticus
, Vibrio natriegens and the remaining
from Hepatopancreas (HP) were identified as Vibrio ordalii, Vibrio harveyi, Vibrio parahaemolyticus and Corynebacterium kutscheri.
Four types of bacterial isolates were obtained from the wild shrimp, out of them two gut isolates were identified as Vibrio vulnificus, Vibrio furnissii and the remaining
isolates from hepatopancreas were identified as Lactobacillus fermentum
and Staphylococcus aureus.
All the 12 isolates were subjected to antibiotic sensitivity tests and found that Ciprofloxacin (Cf) showed highest inhibitory zone (34mm) against Vibrio harveyi
and Norfloxacin (NX) showed lowest (10) mm against Vibrio vulnificus
. All the 12 bacterial isolates were resistant to penicillin-G. Ampicillin showed inhibitory activity against Vibrio harveyi
and rest of the isolates were resistant. Vibrio tubiashii
was resistant to Ampicillin, Furadazole, Penciling-G, and chloramphenicol.Pages: 316-321 | 315 Views 32 DownloadsDownload Full Article:
How to cite this article:
Ramya Deepika K, Janakiram P, Sunil kumar D, Surendran V, Madhuri M, Geetha S. Gut bacterial diversity of wild and cultured penaeus vannamei. Int J Fish Aquat Stud 2019;7(6):316-321.