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Kalesaran, Ockstan J. J.
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Environmental Science

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Telaah morfometrik Pinctada margaritifera untuk pengembangan usaha budidaya Sumtaki, Karel; Kalesaran, Ockstan J. J.; Lumenta, Cyska
e-Journal BUDIDAYA PERAIRAN Vol 6, No 1 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.6.1.2018.19546

Abstract

This study aimed to analyze the size of shell length, shell width and total weight of Pinctada margaritifera shells, and water quality parameters for the aquaculture development. Morphometric measurements include: shell length (PC), and shell width (LC), shell weight (BT). The results showed that PC size 8 - 11.99 cm, LC 8 - 9.99 cm and BT 80 - 99.99 gram dominate the Arakan waters  while PC size 6 - 9.99 cm, LC 6 - 7.99 cm and BT 60 - 79.99 gram dominate the Bahoi  waters. The results of water quality measurements in both locations are Bahoi waters, namely: 29-32oC, DO 7-8,5 mg/l, pH 7,8-7,9, salinity, 28-32 ppt, 4,5- 7 meters, 11 cm/sec. While in Arakan waters, the temperature was 30-30,8oC, DO 6,3-6,7 mg/l, pH 7,6-7,7 salinity 30 ppt, brightness 4-5 meter, current velocity 4,5 cm / second. Both locations were feasible for the development of pearl aquacultureKeywords: Morphometric, Pinctada margaritifera, Aquaculture
Penggunaan tepung karkas kijing Taiwan (Anodonta woodiana) dan karkas kerang mutiara (Pinctada margaritifera) dalam formulasi pakan bagi pertumbuhan benih ikan nila (Oreochromis niloticus) di kolam budidaya Sedu, Aprini L.; Lumenta, Cyska; Kalesaran, Ockstan J. J.; Sinjal, Julius H.
e-Journal BUDIDAYA PERAIRAN Vol 8, No 2 (2020)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.8.2.2020.28762

Abstract

This study aimed to determine the effectiveness of feed formulated from Taiwan gravestone carcass flour and pearl mussel carcass flour for the growth of tilapia (Oreochromis niloticus). Tilapia used in this study amounted to 300 individuals with an average weight of 2 g per individual.  Five treatments were used with 3 replications including treatment A (0% Anodonta woodiana carcass flour, 5% Pinctada margaritifera carcass flour and 40% fish meal), B (10% A. woodiana carcass, 5% P. margaritifera carcass flour and 30% fish meal), C (20% A. woodiana, 5% P. margaritifera carcass flour and 20% fish meal), D (30% A. woodiana, 5% P. margaritifera carcass flour and 10% fish meal), E (40% A. woodiana, 5% P. margaritifera carcass flour and 0% fish meal). The data was analysed using analysis of variance in a completely randomized design (CRD). The fish was reared in a net of 15 units with a size of L x W x H = 50 x 50 x 56 cm. The variables analyzed in this study were absolute growth, daily growth, feed efficiency, feed conversion value and survival. The collection of growth data was carried out by measuring the weight of fish at the beginning and end of the study using a digital scale with a precision level of 0.01 g. The results of the research through Duncan's tests showed that the treatments of A, B and E were the same in spurring the absolute, relative, and daily growth. The same result was observedin the value of feed efficiency and feed conversion, where between treatments A, B and E had similar effect in utilizing the feed during the experiment.
Co-Authors Cyska Lumenta Sedu, Aprini L. Sinjal, Julius H. Sumtaki, Karel