In intensive shrimp culture, oxygen consumption of shrimp is an important indicator that greatly affects the physiological condition of shrimp as a reared organism. The purpose of this study was to dynamically determine the oxygen consumption of shrimp in intensive culture as well as the variables of water quality and shrimp growth. This research was conducted with the concept of ex-post facto causal design in intensive aquaculture ponds during the shrimp cultivation period. During the shrimp culture period, the rate of oxygen consumption of shrimp is inversely related with the sigmodial average increase in shrimp body weight. Meanwhile, based on the simulation analysis with the dynamic modeling concept, it is shown that oxygen consumption was linear to the dynamics of average daily gain and inversely proportional with the increasing rate of shrimp biomass in the ponds. In addition, oxygen consumption rate of shrimp in intensive ponds had a close relationship with water salinity and total organic matter. In conclusion, dynamically, the fluctuation of oxygen consumption rate and average daily gain of shrimp in intensive culture are closely related to the stability of the water quality conditions on the shrimp habitat.
Budidaya rumput laut adalah salah satu sub-kegiatan akuakultur yang sangat potensial untuk dikembangkan di Kecamatan Banyuputih, Situbondo. Tujuan dari penelitian ini adalah untuk memetakan kesesuaian lahan budidaya di Kecamatan Banyuputih Situbondo guna dapat digunakan sebagai area budidaya rumput laut berdasarkan nilai indikator parameter kimia air yang ada. Penelitian ini dilaksanakan di perairan pesisir Kecamatan Banyuputih, Situbondo selama bulan januari-maret 2019 dengan konsep penelitian lapang dan analisa spasial dari pengambilan data kimia air (oksigen terlarut, fosfat, dan nitrat) yang kemudian dianalisis menggunakan metode Inverse Distance Weighting (IDW) dan overlay pada aplikasi GIS (Geographic Information System) guna mendapatkan model visualisasi peta tematik kesesuaian lahan. Hasil penelitian menunjukan parameter oksigen terlarut, fosfat, serta nitrat berfluktuasi secara variatif dan dinamis selama masa penelitian berlangsung, dengan kisaran konsentrasi 5.4-6.1 mg/L (DO), 0.8-1.6 mg/L (PO4), dan 2.1-3.7 mg/L (NO3). Kondisi tersebut, menandakan bahwa perairan pesisir Kecamatan Banyuputih cenderung subur dan layak untuk digunakan sebagai lahan budidaya akuakultur. Pernyataan tersebut juga bisa dilihat dari hasil visualisasi warna pada gambar kesesuaian lahan di peta tematik peneltian. Nilai konsentrasi dari parameter DO (5.4-6.1 mg/L), fosfat (0.8-1.6 mg/L), dan nitrat (2.1-3.7 mg/L) di perairan Kecamatan Banyuputih juga masih sesuai dengan ambang batas baku mutu kualitas air yang diperuntukan untuk budidaya rumput laut. Sehingga dari penelitian ini dapat disimpulkan, dari berbagai gambar peta tematik hasil analisis spasial berdasarkan indeks parameter kimia air yang ada, lokasi perairan Kecamatan Banyuputih sangat layak dan potensial untuk dikembangkan sebagai area budidaya rumput laut yang produktif.
Intensive aquaculture of vaname shrimp (L. vannamei), has been known to be a favorite for aquaculture commodities in Indonesia at the last 2 decades. The purpose of this study was to determine status of financial feasibility and business sensitivity rate in intensive shrimp culture activities. The research method used in this study is a quantitative method. The data analysis used to determine of financial feasibility and business sensitivity in the form of NPV analysis, Net B/C, R/C, IRR, and payback period. Also, an analysis of assumptions about rising feed prices and decreasing production revenues for the level of business sensitivity. The results showed that the shrimp culture business was categorized as feasible and profitable with NPV value of IDR 63,417,262,006, Net B/C 29.11, R/C 2.14, IRR 42.46%, and PP 1.4 years. Sensitivity analysis shows that the business is not so sensitive to the increase of feed prices and decreased revenue, but is very sensitive if both conditions change simultaneously, but are still in the financially feasible category. So, it can be concluded based on NPV, Net B/C, R/C, IRR, and payback period indicator analysis that intensive white shrimp farming is very feasible and profitable to use with a low level of business sensitivity due to feed price fluctuations changes and uncertain operational business revenues.
Shrimp farming with a non-partial harvest system is a cultivation concept to obtain optimal production harvest. The purpose of this study was to determine the business feasibility status of vaname shrimp (L. vannamei) cultivation with a non-partial harvesting system in terms of the ecological and financial aspects from aquaculture. The research method used in this study is a survey research method with data collection techniques based on purposive sampling. The results showed, this non-partial system is ecologically very feasible, because the conditions of the average daily water quality parameter values (DO, pH, temperature, salinity) during the aquaculture period are still above the water quality standard threshold for intensive aquaculture. The business financial feasibility analysis resulted in a profit of IDR 441,307,102,-, BEP Unit 2,062 Kg, BEP Sales IDR 119,995,253,-, R/C of 1.71, Return on Investment of 47.69%, and Payback Period of 2.7 years. Meanwhile based on investment analysis, the Net Present Value of IDR 34,136,139,245,-, Net B/C 11.61, and Internal Rate of Return 37.23%. So, it can be denied, that based on ecological aspects and economic multiplication of aquaculture systems like this can be categorized as very feasible and profitable to be globally developed.
Snack bar adalah jenis makanan selingan yang dibuat dari berbagai macam bahan sehingga dapat digunakan sebagai salah satu produk diversifikasi pangan. Tepung ikan teri sangat potensial dijadikan sebagai bahan tambah snack bar karena memiliki keunggulan dapat dikonsumsi seluruh bagian tubuhnya. Tujuan dari penelitian ini yaitu untuk mengetahui daya terima konsumen secara organoleptik (uji hedonik) sekaligus mengetahui kandungan proksimat snack bar substitusi tepung ikan teri. Terdapat empat formulasi pembuatan snack bar, yakni penambahan tepung ikan teri sebanyak 15% (P1), 25% (P2), dan 35% (P3), dan kontrol (tanpa penambaha tepung ikan teri). Hasil pengujian organoleptik berdasarkan Rancangan Acak Lengkap (RAL) dan uji lanjut Duncan menunjukkan tiga perlakuan penambahan ikan teri berbeda nyata dengan kontrol untuk setiap atribut pengujian (rasa, aroma, warna dan tekstur. Berdasarkan nilai mean atribut rasa, aroma, tekstur dari setiap perlakuan penambahan tepung ikan teri diketahui bahawasanya P2 (penambahan ikan teri 15%) memiliki tingkat kesukaan panelis tertinggi. Analisis proksimat pada penambahan tepung ikan teri 15% (P2) diperoleh kadar air 8,27%, kadar abu 11,06%, kadar protein 18,63%, kadar lemak 15,44%, dan kadar karbohidrat 46,60%. Kata Kunci: Snack bar, Tepung Ikan Teri, Uji Organoleptik, Analisis Proksimat
Tujuan penelitian adalah untuk menentukan kapasitas produksi dan luas blahan optimal tambak udang intensif berdasarkan daya dukung perairan pesisir Kecamatan Banyuputih dengan permodelan sistem dinamis.Analisis otimasi produksi tambak udang intensif dilakukan dengan pendekatan permodelan sistem dinamis menggunakan alat bantu software Stella ver. 9.02. Variabel yang disimulasi pada analisa pemodelan ini adalah variabel kapasitas oksigen perairan, kuantitas limbah budidaya, biomassa udang, bobot rata-rata udang, dan prosentase tingkat kelulushidupan udang selama satu siklus budidaya. Hasil simulasi model dinamis menunjukkan bahwa sistem budidaya udang intensif padat tebar (110 ekor/m2) dengan penerapan 2 (dua) kali panen parsial (pada saat umur udang 70 hari dan 90 hari) menghasilkan produktifitas biomassa udang yang paling optimal serta beban limbah TSS pada perairan pesisir yang paling kecil (sedikit) dibandingkan dengan sisitem budidaya intensif dengan tingkat padat tebar (130 ekor/m2), (150 ekor/m2), dan (170 ekor/m2). Penerapan sisitem bididaya dengan padat 110 ekor/m2 memberikan tingkat daya dukung optimal perairan untuk pengembangan lahan tambak udang intensif seluas 45 ha atau 65.4% dari daya dukung maksimal perairan (67,8 ha)dengan kapasitas produksi optimal sebesar 1.165.327,43 kg udang
Intensive shrimp farms need mangroves to increase the carrying capacity of their waters. Every 1 Ha of intensive shrimp pond requires 7.2 Ha mangrove to absorb nitrogen (N) and 21,7 Ha to absorb phosphor (P) from waste water disposal. This study was conducted to estimate the extent of lmangrove required to absorb nitrogen (N) and phosphorus (P) wastes removed from intensive shrimp farming in Banyuputih Subdistrict of Situbondo Regency. From the field survey results obtained data on the area of productive intensive ponds in the District Banyuputih is 39 Ha. The result of data analysis indicate that 280,3 Ha mangrove is needed to support the absorption of nitrogen (N) and 846,3 Ha mangrove to absorb phosphorus (P) of effectiveness pond waste pond in the study area. The mangrove in this subdistrict of Banyuputih (540,18 Ha) still support in the absorption of nitrogen waste (N), but for the absorption of phosphorus posfor (P) ponds still needed reforestation of at least 304,12 Ha from the existing mangrove area. If the local government intends to develop intensive shrimp ponds in accordance with the carrying capacity or maximum capacity of coastal waters of Banyuputih in decomposing 58 ha of tambak organic ponds, the current mangrove condition (540.18 Ha) still supports the absorption of nitrogen (N) from ponds intensively covering an area of 58 Ha, but to absorb the posfor (P) lagoon is still needed addition (reforestation) of 718.42 Ha.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.