%A 1414111030 Helpo Prayor
%T PENGARUH PENAMBAHAN METIONIN PADA PAKAN FORMULASI
TERHADAP LAJU PERTUMBUHAN IKAN KERAPU MACAN
(Epinephelus fuscoguttatus) DI FASE PENGGELONDONGAN
%X Metionin merupakan salah satu asam amino esensial yang tersedia dalam ransum
dengan jumlah yang cukup memiliki fungsi untuk memulai sintesis protein dalam
pertumbuhan ikan. Penelitian ini bertujuan untuk mengetahui pengaruh
penambahan kadar metionin berbeda pada pakan terhadap pertumbuhan dan
kelangsungan hidup kerapu macan (Epinephelus fuscoguttatus) di fase
penggelondongan, sebanyak tiga perlakuan dilakukan dalam penelitian ini yaitu
kontrol (tanpa penambahan metionin), untuk pakan mandiri dengan penambahan
metionin 0,35% (perlakuan 1), dan 0,5% (perlakuan 2) masing-masing dengan 3
ulangan. Ikan kerapu macan dengan bobot rata-rata 60 g/ekor dipelihara dalam
bak fiber ukuran (2,5?1?1) meter selama 60 hari. Rancangan yang digunakan
dalam penelitian ini adalah Rancangan Acak Lengkap (RAL). Data yang
diperoleh dianalisis menggunakan ANOVA pada taraf kepercayaan 95% melalui
program SPSS 21 dan uji lanjut Tukey untuk mengetahui perlakuan terbaik. Hasil
analisis menunjukan bahwa penambahan metionin dalam pakan formulasi mampu
menyamai pakan komersial dalam hal pertumbuhan mutlak, dan laju pertumbuhan
spesifik. Meskipun hasil FCR pakan mandiri lebih tinggi dari kontrol, tetapi
secara ekonomis masih jauh lebih rendah 2 kali lipat.Penambahan metionin 0,5%
dianjurkan dalam produksi pakan formulasi untuk budidaya ikan kerapu.

Kata Kunci: Kerapu Macan, Metionin, Pakan Mandiri, Penggelondongan.

Methionine is one of the essential amino acids that are available in the diet in
sufficient quantities to have a function to initiate protein synthesis in fish growth.
This study aimed to determine the effect of adding different levels of methionine
to feed on the growth and survival of tiger grouper (Epinephelus fuscoguttatus) in
the germination phase. Three treatments were carried out in this study, namely
control (without the addition of methionine), for independent feed with the
addition of 0, methionine. 35% (treatment 1), and 0.5% (treatment 2) each with 3
replications. Tiger grouper with an average weight of 60 g/head was kept in a fiber
tank measuring (2.5?1?1) meter for 60 days. The design used in this study was a
completely randomized design (CRD). The data obtained were analyzed using
ANOVA at a 95% confidence level through the SPSS 21 Program and Tukey's
further test to determine the best treatment. The results of the analysis showed that
the addition of methionine in the formulated feed was able to match the
commercial feed in terms of absolute growth and specific growth rate. Although
the independent feed FCR yield was higher than the control, but economically it
was still much lower by 2 times. The addition of methionine 0.5% is
recommended in the production of formulation feed for the cultivation of grouper
fish.

Keywords: Tiger Grouper, Methionine, Feed Formulation, Nursery.
%C UNIVERSITAS LAMPUNG
%D 2021
%I Fakultas Pertanian
%L eprints62446