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Jurnal Perikanan
Published by Universitas Mataram
ISSN : 23026049     EISSN : 26570629     DOI : 10.29303/jp.v14i3.925
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal ini memuat artikel yang berhubungan dengan hasil penelitian di bidang perikanan dan ilmu kelautan yang meliputi 1. teknologi penyediaan pakan buatan 2. rekayasa akuakultur 3. teknologi pembenihan dan pembesaran ikan 4. rekayasa genetik 5. teknologi pengendalian hama dan penyakit ikan 6. teknologi budidaya pakan alami 7. manajemen sumberdaya perairan 8. teknologi hasil perikanan 9. teknologi perikanan tangkap 10. ilmu dan teknologi kelautan 11. agribisnis perikanan
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 872 Documents
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STUDY OF NUTRIENT CONTENT (NITROGEN ELEMENT) IN Kappaphycus alvarezii THALLUS IN RELATION TO FILAMENTOUS ALGAE ATTACHMENT IN THE BONE-BONE COASTAL WATERS, BAUBAU CITY Adriyan, Adriyan; Kasim, Ma'ruf; Oetama, Dedy
Jurnal Perikanan Unram Vol 16 No 1 (2026): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v16i1.2119

Abstract

This study aimed to determine the nitrogen content in the thallus of K. alvarezii in relation to filamentous algae attachment. The research location was determined using the purposive sampling method. This study used a horizontal net (horinet) as a cultivation tool. Sampling of K. alvarezii thallus was conducted over 35 days with a 7-day interval. A total of 20 thallus were collected during the study, consisting of 10 thallus with attached filamentous algae and 10 thallus without attached filamentous algae. The nitrogen content in the thallus was calculated using the Kjeldahl method, which involves three main stages: digestion, distillation, and titration. The results showed that the types of attached filamentous algae included one species from the class Chlorophyta, namely Chaetomorpha crassa, and one species from the class Rhodophyta, namely Neosiphonia apiculata. The highest average nitrogen content in the thallus when filamentous algae were attached was 1.121%, and the lowest was 0.863%. In contrast, in thallus without attached filamentous algae, the highest average nitrogen content was 1.274%, and the lowest was 0.942%. The results of the one-way ANOVA test analysis indicated no significant difference in nitrogen content between thallus with and without attached filamentous algae.
THE EFFECT OF FERMENTATION TIME OF PAPAYA LEAVES (Carica papaya) ON THE GROWTH AND SURVIVAL RATE OF NILE TILAPIA (Oreochromis niloticus) Emmanuel, Joy Steven; Prasetia, I Nyoman Dodik; Amelia, Jasmine Masyitha; Sitepu, Gressty Sari Br
SLOT777 : SITUS SLOT GACOR MALAM INI TERBAIK DAN BOCORAN SLOT THAILAND RESMI 2026 Vol 16 No 1 (2026): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v16i1.2152

Abstract

Tilapia (Oreochromis niloticus) aquaculture has high economic value and rapid growth; however, the high cost of commercial feed necessitates the use of more economical and nutritionally adequate alternative feed ingredients, such as fermented papaya leaves (Carica papaya). This study aimed to evaluate the effect of different fermentation durations of papaya leaves in commercial feed on the growth and survival rate of tilapia and to determine the optimal fermentation time. This study employed an experimental method using a Completely Randomized Design (CRD) consisting of four treatments and three replications: treatment A (control without fermentation), treatment B (3 days fermentation), treatment C (5 days fermentation), and treatment D (7 days fermentation). Tilapia fingerlings measuring ±5–7 cm with an initial weight of ±3–4 g were reared for 30 days at a stocking density of 20 fish per tank. The observed parameters included weight gain and survival rate, while the water quality parameters measured were temperature, pH, dissolved oxygen (DO), and ammonia. The data were analyzed using a One-Way ANOVA test followed by Duncan’s multiple range test. The results showed that the addition of fermented papaya leaves had a significant effect (P < 0.05) on the weight gain of tilapia, but no significant effect (P > 0.05) on the survival rate. The best treatment was obtained at 7 days of fermentation, with an average weight gain of 19.53 g and a survival rate of 100%. Therefore, a fermentation duration of 7 days for papaya leaves in commercial feed is considered the most optimal time to enhance the growth of tilapia without affecting their survival rate.

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