Glucose Levels and Bacteria Identification in Cantang Groupers Distributed from Hatchery Bali

Lilis Cahaya Septiana; Gunanti Mahasri; Ahmad Shofy Mubarak; Lia Oktavia Ika Putri

doi:10.30736/grouper.v16i1.302

Authors

Lilis Cahaya Septiana
Gunanti Mahasri Fakultas Perikanan dan Kelautan, Univeritas Airlangga
Ahmad Shofy Mubarak Fakultas Perikanan dan Kelautan, Univeritas Airlangga
Lia Oktavia Ika Putri Fakultas Perikanan dan Kelautan, Univeritas Airlangga

DOI:

https://doi.org/10.30736/grouper.v16i1.302

Keywords:

glucose, vibrio alginolyticus, grouper fish, fish stress

Abstract

Cantang grouper is a hybridization between female tiger grouper and male kertang grouper. Transporting fish using a closed transportation system can cause stress, which results in increased blood glucose levels in fish as a secondary physiological response. This study aims to analyze blood glucose levels and identify bacteria in cantang grouper (Epinephelus fuscoguttatus lanceolatus) distributed from hatcheries in Bali. The results showed that the average blood glucose level reached 102 mg/dL, higher than the normal range (27–56 mg/dL), indicating that the fish experienced stress due to bacterial infection and the transportation process. The cantang grouper observed had been infected with Vibrio alginoliticus bacteria with the lowest TVC value of 98 x ¹⁰⁵CFU/mL and the highest 239 x 105 ^CFU/mL. The relationship between blood glucose and TVC values is positively correlated. The higher the blood glucose, the higher the TVC value in cantang grouper. Bacterial identification revealed the presence of Vibrio alginolyticus, a major pathogen causing vibriosis in marine fish. This study highlights the importance of improving transportation systems and implementing strict biosecurity to reduce stress and infection in cantang grouper

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