Electronic Theses and Dissertation

Ikan gurami (Osphronemus gouramy) merupakan salah satu ikan air tawar yang banyak dibudidayakan di Indonesia. Penelitian ini bertujuan untuk menganalisis pengaruh perendaman esktrak daun kersen (Muntingia calabura) dengan dosis yang berbeda terhadap ikan gurami yang terinfeksi Aeromonas hydrophila. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 3 kali pengulangan. Perlakuan yang diberikan adalah perlakuan A (Kontrol negatif) tanpa penginfeksian dan perendaman, perlakuan B (Kontrol positif) dengan dilakukan penginfeksian tanpa perendaman, perlakuan dengan perendaman yaitu perlakuan C (50 ppm), perlakuan D (70 ppm), dan perlakuan E (90 ppm). Hasil penelitian menunjukkan penambahan ekstrak daun kersen berpengrauh terhadap gejala klinis, jumlah leukosit, kadar hemoglobin, dan nilai survival rate (SR). Hasil uji lanjut Duncan, perlakuan dengan tingkat kelangsungan hidup tertinggi terdapat pada perlakuan C yaitu 76,66 ± 5,77. Perlakuan C tidak berbeda nyata dengan perlakuan D yaitu 66,66 ± 5,77, tetapi berbeda nyata terhadap perlakuan B dan perlakuan A dengan masing-masing 40,00 ± 0,00 dan 56,66 ± 11,54. Perlakuan C menunjukkan kembali stabilnya jumlah leukosit, normalnya nilai hemoglobin, berkurangnya kadar lendir yang berlebihan, penyembuhan luka borok pada ikan yang relatif lebih cepat. Hasil penelitian menunjukkan dosis terbaik didapat pada perlakuan C (50 ppm) dengan tingkat kelangsungan hidup mencapai 76%.
Kata kunci : ekstrak daun kersen, Aeromonas hydrophila, Osphronemus gouramy, survival rate

Gourami (Osphronemus gouramy) is one of the freshwater fish that is widely cultivated in Indonesia. This study aims to analyze the effect of soaking kersen (Muntingia calabura) leaf extract with different doses on gouramy infected with Aeromonas hydrophila. This study used a completely randomized design (CRD) with 5 treatments and 3 repetitions. The treatments given were treatment A (negative control) without infecting and soaking, treatment B (positive control) with infecting without soaking, treatment with soaking, namely treatment C (50 ppm), treatment D (70 ppm), and treatment E (90 ppm). The results showed the addition of kersen leaf extract had an effect on clinical symptoms, leukocyte counts, hemoglobin levels, and survival rate (SR) values. The results of Duncan's further test, the treatment with the highest survival rate was in treatment C which was 76.66 ± 5.77. Treatment C was not significantly different from treatment D which was 66.66 ± 5.77, but significantly different from treatment B and treatment A with 40.00 ± 0.00 and 56.66 ± 11.54, respectively. Treatment C showed a return to stable leukocyte counts, normal hemoglobin values, reduced levels of excessive mucus, relatively faster healing of ulcers in fish. The results showed that the best dose was obtained in treatment C (50 ppm) with a survival rate of 76%. Keywords: Kersen leaf extract, Aeromonas hydrophila, Osphronemus gouramy, survival rate.