Image of Pengaruh Padat Terbar Ikan Nila Merah (Oreochromis Niloticus) Terhadap Pertumbuhan Dan Kelulushidupan Lobster Air Tawar (Cherax Quadrucarinatus) Dalam Sistem Polikultur
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Pengaruh Padat Terbar Ikan Nila Merah (Oreochromis Niloticus) Terhadap Pertumbuhan Dan Kelulushidupan Lobster Air Tawar (Cherax Quadrucarinatus) Dalam Sistem Polikultur

Crayfish are a genus belonging to the freshwater crustacean group that has relatively high market demand. Red tilapia is a popular type of freshwater fish among both households and restaurant businesses due to its affordable price and high protein content. The polyculture system involves cultivating multiple species in the same pond, each with different dietary needs, thereby minimizing competition for food. This research was conducted from February to April 2025 at the Aquaculture Technology Laboratory, Faculty of Fisheries and Marine Sciences, University of Riau. The aim of the study was to determine the optimal stocking density of red tilapia that affects the survival and growth of crayfish in a polyculture system. Conducted over 56 days, the study employed a completely randomized design (CRD) with five tilapia stocking density treatments (0, 15, 20, 25, and 30 fish per 75 liters) and three replicates. Results showed that the treatment with 20 tilapia (P2) provided the best growth performance for crayfish, with a weight of 8.97 g, length of 3.38 cm, and a specific growth rate of 3.60% per day— significantly higher than other treatments (p < 0.05). Tilapia in this treatment also showed weight gain (5.46 g), length increase (5.05 cm), and feed efficiency (49.21%), with 100% survival across all treatments. Water quality remained optimal throughout the study, supporting both species, with temperature ranging from 27.4–32.3 °C, pH from 6.1–7.7, dissolved oxygen (DO) from 2.5–7.3 mg/L, and ammonia from 0.0103–0.1678 mg/L.

Keywords: Crayfish, Red tilapia, polyculture, Growth.

Ketersediaan
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Perpustakaan Universitas Riau 1804111964
1804111964
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Judul Seri
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No. Panggil
1804111964
Penerbit
Pekanbaru : Universitas Riau - Fakultas Perikanan Dan Ilmu Kelautan - Budi Daya Perairan.,
Deskripsi Fisik
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Bahasa
Indonesia
ISBN/ISSN
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Klasifikasi
1804111964
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Tipe Media
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Tipe Pembawa
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Edisi
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Subjek
BUDI DAYA PERAIRAN
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Pernyataan Tanggungjawab
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