PENGARUH PEMBERIAN PAKAN DENGAN KADAR PROTEIN BERBEDA TERHADAP PERFORMA PERTUMBUHAN IKAN KAKAP PUTIH (Lates calcarifer) DI KERAMBA JARING APUNG

M. AINUL YAQIN , 1414111038 (2018) PENGARUH PEMBERIAN PAKAN DENGAN KADAR PROTEIN BERBEDA TERHADAP PERFORMA PERTUMBUHAN IKAN KAKAP PUTIH (Lates calcarifer) DI KERAMBA JARING APUNG. FAKULTAS PERTANIAN , UNIVERSITAS LAMPUNG.

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Abstrak

Protein adalah faktor penting yang mempengaruhi kinerja pertumbuhan ikan. Kekurangan protein menghasilkan pertumbuhan yang buruk, kelebihan protein menyebabkan peningkatan ekskresi amonia ke lingkungan sekitarnya. Tujuan penelitian ini untuk mengetahui kadar protein pakan yang optimum untuk performa pertumbuhan ikan kakap putih di KJA. Penelitian menggunakan 3 perlakuan dan 3 ulangan yaitu P0 (kontrol protein 42%), P1 (protein 37%), dan P2 (protein 40%). Parameter yang diamati meliputi laju pertumbuhan harian, kelangsungan hidup, konversi pakan, bobot mutlak, dan retensi protein. Parameter pendukung yaitu biaya pakan dan kualitas air. Data yang diperoleh dianalisis dengan analisis sidik ragam dan dilanjutkan uji duncan dengan selang kepercayaan 95%. Hasil penelitian menunjukkan bahwa ada pengaruh nyata (P<0,05) pemberian pakan dengan kadar protein berbeda terhadap performa pertumbuhan ikan kakap putih di KJA. Perlakuan P1 (protein 37%) merupakan protein pakan yang optimum untuk ikan kakap putih di KJA karena memiliki performa pertumbuhan terbaik yaitu laju pertumbuhan harian (0,63±0,16 g/hari), bobot mutlak (37,82±9,61 g), konversi pakan (2,27±0,87), retensi protein (12,96±4,17%), dan biaya pakan termurah (Rp 31.638). Kata Kunci : Ikan kakap putih, kadar protein berbeda, KJA, optimum, pertumbuhan ABSTRACT Protein is an important factor that affects the growth performance of fish. Lack of protein produces poor growth, excess protein causes increased ammonia excretion to the environment. The objective of this researchwas to determine the optimum protein content for the performance growth of seabass in sea cages.The research used 3 treatments and 3 replications ie P0 (42% protein control), P1 (37% protein), and P2 (40% protein). Parameters observed included daily growth rate, survival rate, feed conversion, absolute weight, and protein retention. Supporting parameter that is feed cost and water quality. The data obtained were analyzed by analysis of variance and continued by duncan test with 95% confidence interval. The results showed that there was a significant effect (P <0,05) feeding with different protein levels on the growth performance of seabass at sea cages.Treatment P1 (37% protein) is the optimum feed protein for seabass at sea cages because it has the best growth performance ie daily growth rate (0,63±0,16 g/day), absolute weight (37,82±9,61 g), feed conversion (2,27±0,87), protein retention (12,96±4,17%), and lowest feeding cost (Rp 31.638). Keywords: Different protein levels, growth,optimum, seabass,sea cages

Tipe Karya Ilmiah: Skripsi
Subyek: Pertanian > Budidaya . Perikanan . Angling
Program Studi: Fakultas Pertanian > Prodi Budidaya Perairan
Depositing User: 201882846 . Digilib
Date Deposited: 05 Jun 2018 03:47
Last Modified: 05 Jun 2018 03:47
URI: http://digilib.unila.ac.id/id/eprint/31562

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