ISOLASI DAN IDENTIFIKASI BAKTERI Enterobacter sp. PADA BURUNG KUNTUL BESAR (Egretta alba) DI KECAMATAN BAITUSSALAM

Abstract

The great egret (Egretta lba) is a waterbird that inhabits wetland ecosystems and has potential to act as a reservoir for enteric bacteria, including Enterobacter sp. This bacterium is opportunistic in nature and can pose a health risk to animals, humans, and the environment. This study aimed to isolated and identify Enterobacter sp. from great egrets (Egretta alba) inhabiting the mangrove forest ecosystem of Baitussalam District, Aceh Besar. The study was conducted through field obsevation and laboratory exploration using the Carter method. A total of ten cloacal swab samples from great egrets were inoculated into Nutrient Broth (NB) and subsequently isolated on MacConkey Agar (MCA). The resulting colonies were observed for their morphological characteristics, subjected to Gram staining, and analyzed using biochemical tests including IMViC, TSIA, SIM, and carbohydrate fermentation test. The results showed that all samples revealed that the isolated bacteria were Gram-negative and rod-shape. Biochemical test results indicated negative indole, motility positive, MR positive, VP negative, SCA positive, and the ability to ferment various carbohydrates. Based on the identification results, the bacterium isolated was Enterobacter sp.