Rindanis, Rara (2021) Pengaruh Pemberian Serbuk Tinta Cumi-cumi (Loligo sp.) Terhadap Kelulushidupan, Pertumbuhan dan Rasio Konversi Pakan Benih Ikan Lele (Clarias gariepinus) yang Diinfeksi Bakteri Aeromonas hydrophila. Sarjana thesis, Universitas Brawijaya.
Abstract
Budidaya ikan lele di Indonesia semakin meningkat setelah ikan lele dumbo (Clarias gariepinus) masuk ke Indonesia pada tahun 1985. A. hydrophila merupakan bakteri yang paling umum menyebabkan penyakit dalam budidaya ikan lele. Serangan bakteri A. hydrophila dapat menyebabkan kematian massal dan dapat mempengaruhi faktor penentu keberhasilan budidaya seperti kelulushidupan, laju pertumbuhan dan rasio konversi pakan. Pemberian antibiotik yang berkepanjangan dapat menyebabkan retensi terhadap patogen. Tinta cumi memiliki sifat antiretroviral, antitumor, antioksidan, antibakteri dan kemampuan melindungi sel dari kerusakan akibat kemoterapi. Maka dari itu pencegahan kematian pada infeksi bakteri A. hydrophila dapat dilakukan melalui pemberian serbuk tinta cumi-cumi (Loligo sp.) sebagai antibakteri. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian serbuk tinta cumi-cumi (Loligo sp.) terhadap kelulushidupan (SR), laju pertumbuhan spesifik (SGR) dan rasio konversi pakan (FCR) benih ikan lele (C. gariepinus) yang diinfeksi bakteri A. hydrophila. Metode penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL) menggunakan 3 perlakuan 3 ulangan dan 1 kontrol, dengan perlakuan A (infeksi bakteri tanpa perendaman tinta cumi-cumi), B (perendaman), dan perlakuan C (perendaman sebagai booster). Parameter utama dalam penelitian ini adalah kelulushidupan (SR), laju pertumbuhan spesifik (SGR) dan rasio konversi pakan (FCR) ikan lele dumbo (C. gariepinus), parameter penunjang adalah gejala klinis dan kualitas air yang meliputi suhu, pH, oksigen terlarut, amonia, nitrit dan nitrat. Hasil uji LD50 didapatkan bahwa pemberian kepadatan A. hydrophila 108 CFU/ml menyebabkan kematian ikan 50% dan hasil uji LC50 didapatkan bahwa pemberian dosis serbuk tinta cumi-cumi 750 ppm menyebabkan kematian ikan >50%. Kelulushidupan tertinggi pada perlakuan C yaitu 57,00% dan terendah pada perlakuan A yaitu 26,33%. Laju pertumbuhan spesifik tertinggi pada perlakuan C yaitu 2,73%/hari dan terendah pada perlakuan A yaitu 1,77%/hari. Konversi pakan tertinggi pada perlakuan C yaitu 1,20 dan terendah pada perlakuan A yaitu 0,09. Berdasarkan penelitian yang telah dilakukan dapat disimpulkan bahwa penggunaan serbuk tinta cumi-cumi (Loligo sp.) berpengaruh terhadap kelulushidupan, pertumbuhan dan konversi pakan dengan perlakuan terbaik adalah perlakuan C dengan rata-rata nilai kelulushidupan 57,00%, laju pertumbuhan spesifik 2,73%/hari dan rasio konversi pakan 1,20.
English Abstract
Catfish cultivation in Indonesia increased after African catfish (Clarias gariepinus) entered Indonesia in 1985. A. hydrophila is the most common bacteria causing disease in catfish farming. The attack of A. hydrophila bacteria can cause mass mortality and can affect critical factors for the success of cultivation such as survival, growth rate and feed conversion ratio. Prolonged administration of antibiotics can cause retention of pathogens. Squid ink has antiretroviral, anti-tumor, antioxidant, antibacterial properties and the ability to protect cells from chemotherapy-induced damage. Therefore, prevention of death in A. hydrophila bacterial infection can be done by giving squid (Loligo sp.) ink powder as an antibacterial. This research aim to determine the effect of giving squid (Loligo sp.) ink powder on survival (SR), specific growth rate (SGR) and feed conversion ratio (FCR) of catfish (C. gariepinus) fry infected with A. hydrophila bacteria. The research method used was a completely randomized design (CRD) using 3 treatments 3 replications and 1 control, with treatment A (bacterial infection without soaking squid ink), B (immersion), and treatment C (immersion as a booster). The main parameters in this study were survival rate (SR), specific growth rate (SGR) and feed conversion ratio (FCR) of African catfish (C. gariepinus) fry, the supporting parameters were clinical symptoms and water quality which included temperature, pH, dissolved oxygen, ammonia, nitrite and nitrate. The LD50 test results showed that the density of A. hydrophila was 108 CFU/ml which caused 50% fish mortality and the LC50 test results showed that giving a dose of 750 ppm squid ink powder caused fish mortality >50%. The highest survival rate was in treatment C, namely 57,00% and the lowest was in treatment A, namely 26,33%. The highest growth rate was in treatment C, namely 2,73%/day and the lowest was treatment A, namely 1,77%/day. The highest feed conversion was in treatment C which was 1,20 and the lowest was in treatment A which was 0,09. Based on the research that has been done, it can be ignored that the use of squid (Loligo sp.) Ink powder has an effect on survival, growth and feed conversion. The best treatment is treatment C with an average survival rate of 57,00%, specific growth rate of 2,73%/day and a feed conversion ratio of 1,20.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 0521080086 |
| Subjects: | 600 Technology (Applied sciences) > 639 Hunting, fishing & conservation > 639.3 Culture of cold-blooded vertebrates |
| Divisions: | Fakultas Perikanan dan Ilmu Kelautan > Budidaya Perairan |
| Depositing User: | soegeng sugeng |
| Date Deposited: | 30 Nov 2021 02:10 |
| Last Modified: | 24 Feb 2022 04:06 |
| URI: | http://repository.ub.ac.id/id/eprint/186825 |
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