Mira Rahmita Sari
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Manajemen Pemberian Pakan Pada Pembesaran Ikan Kakap Putih (Lates Calcarifer) di UD Marlisdin Desa Suka Jaya Kabupaten Simeulue Nelvia Mai Susanti; Roslimah Roslimah; Mira Rahmita Sari; Rahmat Tillah; Destriman Laoli
Zoologi: Jurnal Ilmu Peternakan, Ilmu Perikanan, Ilmu Kedokteran Hewan Vol. 2 No. 2 (2024): Juli: Zoologi: Jurnal Ilmu Peternakan, Ilmu Perikanan, Ilmu Kedokteran Hewan
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/zoologi.v2i2.81

Abstract

This study aimed to evaluate the effect of three feeding methods-manual, automatic, and sensor-based-on the growth and feed efficiency of White Snapper (Lates calcarifer). The research was conducted from April to July 2024 in fish farming ponds in North Nias. The research method used was a field experiment with a complete randomized design (CRD) which was analyzed using ANOVA test to compare the significant effects of each feeding method. The results showed that the sensor-based feeding method produced the highest average fish weight growth (3.85 g/day) with the best feed conversion efficiency (FCR) (1.25), significantly superior to the manual and automatic methods (p < 0.05). The sensor-based method proved to be more efficient in meeting fish feed requirements precisely, improving feed efficiency and reducing operational costs. Based on these results, the use of sensor-based technology in the feeding system is recommended as an innovative solution to improve the productivity and sustainability of White Snapper aquaculture.
Pengaruh Kualitas Air Terhadap Produktivitas Lobster Bambu (Panulirus Versicolor) dengan Sistem Keramba Jaring Apung di Perairan Teluk Sinabang Kabupaten Simeulue Nelvia Mai Susanti; Rahmat Tillah; Irmayadi Sastra; Mira Rahmita Sari
Manfish: Jurnal Ilmiah Perikanan dan Peternakan Vol. 3 No. 1 (2025): Maret: Manfish: Jurnal Ilmiah Perikanan dan Peternakan
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/manfish.v3i1.224

Abstract

This study aims to analyze the effect of water quality on the productivity of bamboo lobsters (Panulirus versicolor) cultivated in a floating net cage sistem (KJA) in the waters of Sinabang Bay, Simeulue Regency. Water quality is one of the main environmental factors that determines the success of marine cultivation, especially for high-value species such as bamboo lobsters. Water quality parameters observed in this study included temperature, salinity, pH, dissolved oxygen (DO), and ammonia levels. Measurements were carried out periodically during the 90-day cultivation period to capture environmental dynamics that affect the biological performance of lobsters. This study used a Completely Randomized Design (CRD) experimental design with three treatments based on different cultivation locations that have variations in natural water quality, each with three replications. The results showed that optimal water quality significantly affected the increase in bamboo lobster productivity, as indicated by the parameters of the specific growth rate (SGR), feed conversion efficiency (FCR), and survival rate (SR). The location with the best water quality (P1), which had high DO and low ammonia levels, recorded a daily SGR of 1.82%, a FCR of 1.6, and a SR of 90%. Conversely, the location with low water quality (P3) showed significantly decreased biological performance, with suboptimal SGR, FCR, and SR, primarily due to low dissolved oxygen and high levels of toxic ammonia. These findings emphasize the importance of continuous monitoring and management of water quality in marine cage sistems to support optimal lobster growth and survival. Therefore, managing aquatic environmental quality is key to increasing mariculture productivity and ensuring the sustainability of fishery resources in coastal areas.