Electronic Theses and Dissertation

Abstrak - Ikan nila merah (Oreochromis niloticus) merupakan ikan yang popular di kalangan masyarakat luas. Namun demikian, mengembangkan kegiatan budidaya harus siap menghadapi berbagai macam permasalahan seperti penyakit yang disebabkan oleh bakteri. Aeromonas hydrophila merupakan salah satu bakteri yang menyerang ikan budidaya yang menyebabkan penyakit Motile Aeromonas Septicemia (MAS). Upaya yang dilakukan selain menggunakan bahan kimia ialah penggunaaan bahan herbal seperti daun nangka. Penelitian ini bertujuan untuk mengetahui efektifitas ekstrak daun nangka serta dosis optimal untuk mengobati ikan nila merah yang terinfeksi bakteri Aeromonas hydrophila. Penelitian ini dilakukan selama 21 hari dan menggunakan pola rancangan acak lengkap dengan 5 perlakuan 3 ulangan dengan dosis yang digunakan yaitu A (kontrol (-)), B (kontrol(+)), C (ekstrak daun nangka dosis 30 ppm), D (ekstrak daun nangka dosis 60 ppm), E (ekstrak daun nangka dosis 90 ppm). Kemudian data gejala klinis, hematologi, dan kualitas air yang diperoleh dianalisis secara deskriptif, data kelangsungan hidup dianalisis menggunakan ANOVA dan uji BNJ. Hasil kelangsungan hidup yang didapat pada saat penelitian yaitu berbeda nyata. Rata-rata nilai kelangsungan hidup terbaik pada perlakuan E yaitu 76,66 ± 5,77%. Pengecekan hematologi berdasarkan nilai hematokrit dan hemoglobin pasca perendaman ekstrak daun nangka nilai hematokrit dan hemoglobin mengalami peningkatan selama pemeliharaan dan pada nilai leukosit mengalami penurunan, sehingga ekstrak daun nangka berfungsi sebagai indikator antibakteri pada ikan nila merah.

Kata kunci : ikan nila merah, Aeromonas hydrophila, daun nangka, hematologi, kelangsungan hidup

Abstract - Red tilapia (Oreochromis niloticus) is a fish that is popular among the general public. However, developing cultivation activities must be prepared to face various kinds of problems such as diseases caused by bacteria. Aeromonas hydrophila is one of the bacteria that attacks farmed fish which causes Motile Aeromonas Septicemia (MAS) disease. Efforts made in addition to using chemicals are the use of herbal ingredients such as jackfruit leaves. The aim of the research is to describe the effectiveness of jackfruit leaf extract and the optimal dose for treating red tilapia infected with Aeromonas hydrophila. This study was conducted for 1 month and used a completely randomized design pattern with 5 treatments, 3 replications with the dose used, namely A (control (-)), B (control(+)), C (jackfruit leaf extract dose 30 ppm), D (jackfruit leaf extract dose 60 ppm), E (jackfruit leaf extract dose 90 ppm). Then the data obtained was analyzed using descriptive, ANOVA, and BNJ tests. Observations were made on clinical symptoms, fish hematology, and water quality. The survival results obtained at the time of the study were significantly different. The best average survival value in treatment E was 76.66 ± 5.77%. Checking hematological cheeks based on hematocrit and hemoglobin values after immersion in jackfruit leaf extract. As an antibacterial indicator in red tilapia. Hematological examination based on hematocrit and hemoglobin values after immersion in jackfruit leaf extract, the hematocrit and hemoglobin values increased during rearing and the leukocyte values decreased, so that jackfruit leaf extract serves as an antibacterial indicator for red tilapia. Keyword : Red tilapia, Aeromonas hydrophila bacteria, jackfruit, hematology, Survival rate.