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All Journal AGRISAINS Bumi Lestari Jurnal Perikanan Universitas Gadjah Mada Jurnal Biosilampari: Jurnal Biologi Jurnal Ilmiah Samudra Akuatika
Abdul Masyahoro
Program Akuakultur Fakultas Peternakan Dan Perikanan Universitas Tadulako
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Energy Environmental Science Immunology & microbiology

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Journal : AGRISAINS

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MODEL PERTUMBUHAN IKAN BERONANG LINGKIS (Siganus canaliculatus) HASIL TANGKAPAN SERO DI PERAIRAN KEPULAUAN SELAYAR Masyahoro, Abdul
AgriSains Vol 12, No 1 (2011)
Publisher : FAPETKAN UNTAD

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Abstract

The research was conducted to study the growth model of Siganus canaliculatus which was based on body length parameters. The research was done through survey which was initiated by measuring the body length of n fish samples drawn from N fish population. The size of fish population (N) was based on the fish basket times the number of fish in each basket for every landing catch. The number of fish sample required was based on variability of catch yield for each catching period. Data collected was analysed on the basis of functional relationship between fish fork length (FL) and body weight (W) following the non linear mathematical equation W (i) = qFL(i)b. A model simulation was then performed using the techniques of data interpolation and extrapolation. The regression coefficient value for the relationship of the two parameters was 2.4. indicated that the growth model of the Siganus canaliculatus was allometric. Key words: Allometric, extrapolation, interpolation, model, siganus canaliculatus, simulation.
Effect of Stocking Density, Feed Type and Feeding Time on Growth and Survival Rate of Whiteleg Prawn (Penaeus vannamei) Farida, Farida; Masyahoro, Abdul; Rusaini, Rusaini
AgriSains Vol 20, No 2 (2019)
Publisher : FAPETKAN UNTAD

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The objective of the research was to determine the effect of stocking density, feed type and feeding time on the growth and survival rate of juvenile whiteleg prawn (Penaeus vannamei) cultured in an extensive pond. A completely randomized design (CRD) was applied to a split-split plot design with three factor (stocking density as primary factor, feed type as sub-factor, and feeding time as sub-sub factor), giving 8 treatment combinations with 3 replicates (24 experimental units). Analysis of variance did not indicate any significant interaction between the effects of treatments on whiteleg prawn growth of any two or three factors (P > 0.05). Both stocking density (5 or 10 prawns/m3) and feed type (snails or corn) had a significant effect (P <0.05) on growth, while the effect of feeding time (day or night) was not significant (P > 0.05). Absolute growth of juvenile whiteleg prawn ranged from 2.16 to 7.03 g/prawn with a survival rate range of 60-100%.Keyword: whiteleg prawn, stocking density, feed type and feeding time.
Co-Authors Dwi Sulistiawati Heriyanti Rukka Ismudi Muchsin Luky Adrianto Madinawati Mangitung, Septina Fifi Novalina Serdiati Osmar Buatan Rusaini, Rusaini Samliok Ndobe Samsul, Yusri