Electronic Theses and Dissertation

Peningkatan aktivitas industri kelapa sawit di Indonesia menghasilkan limbah cair dalam jumlah besar yang berpotensi menimbulkan pencemaran lingkungan. Dalam mengatasi permasalahan diperlukan solusi ramah lingkungan seperti fitoremediasi. Lawi-lawi merupakan makroalga yang mampu menyerap polutan sekaligus memiliki kandungan nutrisi yang berpotensi dimanfaatkan sebagai bahan baku dalam formulasi pakan ikan. Penelitian ini bertujuan untuk menganalisis pengaruh pemberian pakan lawi-lawi hasil fitoremediasi limbah cair kelapa sawit terhadap histologi usus ikan nila. Penelitian dilaksanakan pada bulan November 2025-Maret 2026 di Laboratorium Histologi Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Syiah Kuala, Banda Aceh. Metode yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan 3 perlakuan dan 3 ulangan, yaitu P1 (pakan komersial), P2 (pakan lawi-lawi dari lingkungan terkontrol), dan P3 (pakan lawi-lawi hasil fitoremediasi limbah cair kelapa sawit). Parameter yang diamati meliputi uji proksimat serta pengamatan histologi usus
melalui pengukuran luas permukaan vili usus. Hasil penelitian menunjukkan bahwa pakan komersial memiliki kandungan protein tertinggi sebesar 39,00%, sedangkan pakan lawi-lawi pada P2 dan P3 masing-masing sebesar 12,94% dan 12,72%. Analisis histologi usus menunjukkan adanya perbedaan signifikan antar perlakuan (P

The increasing activity of the palm oil industry in Indonesia produces large amounts of liquid waste that has the potential to cause environmental pollution. To overcome this problem, environmentally friendly solutions such as phytoremediation are needed. Lawi-lawi is a macroalgae that is able to absorb pollutants and has nutritional content that has the potential to be used as a raw material in fish feed formulations. This study aims to analyze the effect of feeding lawi-lawi resulting from phytoremediation of palm oil liquid waste on the intestinal histology of tilapia. The study was conducted from November 2025 to March 2026 at the Histology Laboratory of the Faculty of Mathematics and Natural Sciences, Syiah Kuala University, Banda Aceh. The method used was a Completely Randomized Design (CRD) with 3 treatments and 3 replications, namely P1 (commercial feed), P2 (lawi-lawi feed from a controlled environment), and P3 (lawi-lawi feed resulting from phytoremediation of palm oil liquid waste). The parameters observed included proximate analysis and intestinal histology observations by measuring the surface area of intestinal villi. The results showed that commercial feed had the highest protein content of 39.00%, while the lawi-lawi feed in P2 and P3 was 12.94% and 12.72%, respectively. Intestinal histology analysis showed a significant difference between treatments (P