Pengendalian Bakteri dan Ektoparasit pada Ikan Botia Chromobotia macracanthus dengan Cacahan Batang Pisang Ambon Musa cavendisii

Abstract

Ikan botia Chromobotia macracanthus merupakan spesies ikan hias air tawar yang banyak diminati, namun ikan ini sangat rentan serangan pathogen bakteri dan ektoparasit. Penelitian ini bertujuan untuk mengevaluasi efektivitas cacahan batang pisang ambon Musa cavendisii dalam mengendalikan infeksi bakteri dan ektoparasit pada ikan botia Chromobotia macracanthus. Penelitian ini dilakukan dengan menggunakan Rancangan Acak Lengkap (RAL) dengan tiga perlakuan dan tiga ulangan, yaitu kontrol, cacahan batang pisang ambon dosis 5 g L-1 dan 10 g L-1. Hasil penelitian menunjukkan bahwa perlakuan perendaman dengan dosis 5 g L-1 secara signifikan menurunkan prevalensi dan intensitas parasit seperti Trichodina sp., Dactylogyrus sp., Gyrodactylus sp., dan Ichthyophthirius multifiliis. Identifikasi bakteri menunjukkan keberadaan Aeromonas sp., Pseudomonas sp., dan Staphylococcus sp., sedangkan kelangsungan hidup sebesar 89%, laju pertumbuhan panjang spesifik sebesar 1,41% hari-1. Hasil tersebut berbeda nyata dengan kontrol kelangsungan hidup sebesar 74%, dan laju pertumbuhan panjang spesifik sebesar 1,23% hari-1. Kualitas air selama penelitian berada dalam kisaran optimal, dengan suhu 25,5–28°C, pH 6,8–7,4, TDS 195–260 mg L-1, dan amonia 0,05–0,06 mg L-1.

Botia fish Chromobotia macracanthus is a species of freshwater ornamental fish that is in great demand, but this fish is very susceptible to bacterial pathogens and ectoparasites. This study aims to evaluate the effectiveness of chopped Ambon banana stem Musa cavendisii in controlling bacterial and ectoparasite infections in botia fish Chromobotia macracanthus. This study was conducted using a Completely Randomized Design (CRD) with three treatments and three replications, namely control, chopped Ambon banana stem doses of 5 g L-1 and 10 g L-1. The results showed that the immersion treatment with a dose of 5 g L-1 significantly reduced the prevalence and intensity of parasites such as Trichodina sp., Dactylogyrus sp., Gyrodactylus sp., and Ichthyophthirius multifiliis. Bacterial identification showed the presence of Aeromonas sp., Pseudomonas sp., and Staphylococcus sp., while survival was 89%, the specific length growth rate was 1.41% day-1. These results were significantly different from the survival control of 74%, and the specific length growth rate of 1.23% day-1. Water quality during the study was within the optimal range, with a temperature of 25.5–28°C, pH 6.8–7.4, TDS 195–260 mg L-1, and ammonia 0.05–0.06 mg L-1.