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      Evaluasi Formula Nutrien Berbeda Terhadap Pertumbuhan dan Kualitas Nutrisi Thalassiosira sp. pada Skala Intermediet

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      Date
      2026
      Author
      NURFIKRI, DEVAN ARYA
      Ekasari, Julie
      Setiawati, Mia
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      Abstract
      Thalassiosira sp. merupakan mikroalga diatom sebagai pakan alami berkualitas tinggi dalam kegiatan hatchery karena memiliki kandungan nutrisi yang baik. Penelitian ini bertujuan mengevaluasi pengaruh formula nutrien yang berbeda terhadap pertumbuhan dan kualitas nutrisi Thalassiosira sp. pada skala intermediet. Penelitian menggunakan Rancangan Acak Lengkap dengan empat perlakuan, yaitu perlakuan K (kontrol media hatchery), I (formulasi IPB dengan penambahan trace elements dan vitamin B1), I2x (formulasi IPB dengan peningkatan makronutrien dua kali lipat), dan I2xU (formulasi IPB dengan peningkatan makronutrien dan dominasi urea sebagai sumber nitrogen) dengan empat kali ulangan. Hasil penelitian menunjukkan bahwa perlakuan I menghasilkan performa terbaik dengan kepadatan sel tertinggi sebesar 14,96 × 104 sel mL?¹, laju pertumbuhan spesifik 41,67% hari?¹, dan kandungan protein 17,6%. Hasil ini menunjukkan bahwa penambahan trace elements dan vitamin B1 mampu meningkatkan produktivitas dan kualitas nutrisi Thalassiosira sp. sehingga berpotensi diterapkan dalam produksi pakan alami pada industri hatchery
       
      Thalassiosira sp. is a diatom microalga that serves as a high-quality natural feed in hatchery operations due to its favorable nutritional content. This study aimed to evaluate the effects of different nutrient formulations on the growth and nutritional quality of Thalassiosira sp. at an intermediate scale. A Completely Randomly Design was employed with four treatments: K (control hatchery medium), I (IPB formulation supplemented with trace elements and vitamin B1), I2x (IPB formulation with doubled macronutrient concentration), and I2xU (IPB formulation with increased macronutrients and urea as the dominant nitrogen source), each with four replicates. The results showed that treatment I produced the best performance, achieving the highest cell density of 14.96 × 104 cells mL?¹, a specific growth rate of 41.67% day?¹, and a protein content of 17.6%. These findings indicate that the addition of trace elements and vitamin B1 can enhance the productivity and nutritional quality of Thalassiosira sp., making it a promising approach for natural feed production in the hatchery industry.
       
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      http://repository.ipb.ac.id/handle/123456789/174231
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      • UF - Aquaculture [2224]

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      Copyright © 2020 Library of IPB University
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      Contact Us | Send Feedback
      Indonesia DSpace Group 
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