MEIDYAWATI, NADIA SYAFIRA (2023) PENINGKATAN PERFORMA EFISIENSI PAKAN DAN PERTUMBUHAN BENIH IKAN BAWAL AIR TAWAR (Colossoma macropomum) MELALUI PENAMBAHAN ENZIM FITASE PADA PAKAN BUATAN (23da237). Undergraduate thesis, Fakultas Perikanan dan Ilmu Kelautan.

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Abstract

ABSTRAK
(Nadia Syafira Meidyawati. 26020119130040. Peningkatan Performa
Efisiensi Pakan dan Pertumbuhan Benih Ikan Bawal Air Tawar (Colossoma
macropomum) Melalui Penambahan Enzim Fitase Pada Pakan Buatan. Diana
Rachmawati & Istiyanto Samidjan).
Bahan baku nabati dalam pakan buatan mengandung zat asam fitat yang
mampu mengurangi efisiensi pakan dan menghambat pertumbuhan ikan. Enzim
fitase mampu menghidrolisis asam fitat yang ada sehingga nutrien dalam pakan
bisa dimanfaatkan oleh kultivan. Penelitian ini bertujuan untuk mengetahui
pengaruh penambahan enzim fitase pada pakan terhadap pertumbuhan dan
efisiensi pemanfaatan pakan benih ikan bawal air tawar (Colossoma
macropomum). Penelitian dilaksanakan di Lokasi Kerja Muntilan, Jawa Tengah
pada 19 November 2022 – 12 Januari 2023. Ikan uji berupa benih ikan bawal
(Colossoma macropomum) dengan panjang 5–7 cm dan berat rata-rata 2,60±0,09
g. Metode penelitian yang digunakan yaitu metode eksperimental dengan
Rancangan Acak Lengkap (RAL) yang terdiri dari 4 perlakuan dan 3 ulangan
yaitu perlakuan A (0 FTU/kg pakan), perlakuan B (600 FTU/kg pakan), perlakuan
C (1.200 FTU/kg pakan), dan perlakuan D (1.800 FTU/kg pakan). Ikan uji
dipelihara selama 56 hari dan diberi pakan sesuai perlakuan. Data Total Konsumsi
Pakan (TKP), Efisiensi Pemanfaatan Pakan (EPP), Rasio Konversi Pakan (FCR),
Rasio Efisiensi Protein (PER), Laju Pertumbuhan Relatif (RGR), Kelulushidupan
(SR), dan Kualitas Air diukur kemudian dianalisis ragam. Uji Duncan dilakukan
apabila berpengaruh nyata untuk mengetahui beda nilai tengah antar perlakuan.
Dosis enzim fitase yang optimal didapat dari uji polinomial ortogonal. Hasil
penelitian menunjukkan bahwa penambahan enzim fitase pada pakan berpengaruh
nyata (P<0,05) terhadap pertumbuhan dan efisiensi pakan ikan bawal air tawar
(Colossoma macropomum). Hasil uji polinomial menunjukkan bahwa penggunaan
dosis 977 – 1.236 FTU/kg pakan mampu menghasilkan EPP, FCR, PER, dan
RGR yang optimal pada benih ikan bawal air tawar (Colossoma macropomum).
Kata kunci: Efisiensi Pakan, Enzim Fitase, Ikan Bawal Air Tawar (Colossoma
macropomum), Pertumbuhan

ABSTRACT
(Nadia Syafira Meidyawati. 26020119130040. Improvement of Feed
Efficiency and Growth Performance of Tambaqui (Colossoma macropomum)
Fingerlings Through the Addition of Phytase Enzymes in Artificial Feeds. Diana
Rachmawati & Istiyanto Samidjan).
Plant-based raw materials in artificial feed contain phytic acid, which can
reduce feed efficiency and inhibit fish growth. Phytase enzyme can hydrolyze
phytic acid, allowing nutrients in feed to be utilized by fish. This study aims to
determine the effect of adding phytase enzyme to the feed on the growth and feed
utilization efficiency of tambaqui (Colossoma macropomum) fingerlings. The
research was conducted at LOKA Muntilan, Central Java, from November 19
2022 - January 12 2023. Tambaqui (Colossoma macropomum) fingerlings with
average length of 5-7 cm and average weight of 2.60±0.09 g was used. The
research method used was an experimental method with a Completely
Randomized Design consisting of 4 treatments and 3 repetitions, namely
Treatment A (0 FTU/kg feed), Treatment B (600 FTU/kg feed), Treatment C
(1,200 FTU/kg feed), and Treatment D (1,800 FTU/kg feed). The test fish were
reared for 56 days and fed according to the treatments. Data on Feed Intake (FI),
Efficiency of Feed Utilization (EFU), Feed Conversion Ratio (FCR), Protein
Efficiency Ratio (PER), Relative Growth Rate (RGR), Survival Rate (SR), and
Water Quality were measured and then analyzed using analysis of variance.
Duncan's test was performed if there was a significant difference to determine the
mean difference between treatments. The optimal dosage of phytase enzyme was
obtained from polynomial orthogonal test. The results showed that the addition of
phytase enzyme to the feed had a significant effect (P<0.05) on the growth and
feed efficiency of Tambaqui (Colossoma macropomum) fingerlings. The
polynomial test results indicated that the use of a dosage range of 977-1,236
FTU/kg feed was able to produce optimal EFU, FCR, PER, and RGR in tambaqui
(Colossoma macropomum) fingerlings.
Keywords: Feed Efficiency, Growth performance, Phytase Enzyme, Tambaqui
(Colossoma macropomum)

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