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Wahyuni, Septia Tri
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Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Languange, Linguistic, Communication & Media Public Health Social Sciences

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Effect of Adding Calcium Dolomite (CaMg(CO3)) and Tohor (CaO) in Cultivation Media to Increase Moulting of Litopenaeus vannamei Wahyuni, Septia Tri; Lestari, Dewi Putri; Diniariwisan, Damai
Journal of Fish Health Vol. 4 No. 2 (2024): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v4i2.4945

Abstract

Vaname shrimp (Litopenaeus vannamei) is a fishery commodity that is the largest contributor to exports compared to other commodities. The success of shrimp survival and growth cannot be separated from the molting process, which requires calcium. The calcium that absorbed from the cultivation media can play a greater role in the process of exoskeleton formation. Dolomite lime (CaMg(CO3)) and tohor (CaO) can be sources of calcium that can be added to cultivation media. The research method used in this study was a completely randomized design (CRD) consisting of 5 different treatments (A: without additional lime, B: 0.8 gr dolomite, C: 0.8 gr tohor, D: 0.3 gr dolomite + 0.5 gr of tohor, E: 0.5 gr of dolomite + 0.3 gr of tohor) with 3 repetitions. The results showed that the addition of lime at different doses provided a molting frequency ranging from 2.07 – 3.23 times during the 60 days rearing period, where treatment E was the optimum treatment. The absolute weight growth obtained ranged from 2.52 gr – 5.03 gr, with an absolute length of 5.25 cm – 9.11 cm. The highest survival rate during maintenance in treatment E reached 72%. The water quality conditions measured during the activity were alkalinity 135 – 146 ppm, Ca hardness 132.74 – 172.39 ppm, temperature 29.9 – 30.3°C, DO 6.3 – 6.5 mg/l, pH 7 .9 – 8.3 and salinity 32 -34 ppt.
PERAN TAMBAK UDANG DI PT. BUMI HARAPAN JAYA DALAM MENINGKATKAN EKONOMI MASYARAKAT DESA TAMBAK SARI, POTO TANO Naban, Sulton Hamid Faros; Murtadha, Hasan; Putrajab, Eka Wawan; Maulana, Rona; Wahyuni, Septia Tri
Jurnal Wicara Vol 1 No 4 (2023): Jurnal Wicara Desa
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/wicara.v1i4.3377

Abstract

Budidaya udang vannamei merupakan salah satu kegiatan alternatif yang bergerak dalam bidang budidaya perikanan. Kegiatan ini dilaksanakan mulai dari tanggal 10 Maret-16 Juni di PT. Bumi Harapan Jaya di desa Tambak Sari Kecamatan Poto Tano. Kegiatan ini bertujuan untuk mengetahui optimalisasi tambak udang di PT. Bumi Harapan Jaya dalam meningkatkan ekonomi masyarakat di desa Tambak Sari, Poto Tano. Perusahaan PT. Bumi Harapan Jaya ini didirikan pada tahun 2009 yang bergerak di bidang budidaya perikanan khususnya usaha tambak udang. Kegiatan budidaya yang dilakukan termasuk dalam sistem intensif dimana padat tebar serta jumlah pakan yang diberikan secara intensif. Metode yang digunakan adalah metode kuantitatif Berdasarkan kegiatan yang dilakukan menunjukkan bahwa pendapatan masyarakat sekitar tambak yang berprofesi sebagai pedagang Rp. 950.000/bulan dan Nelayan Rp.850.000/bulan. Sedangkan pendapatan masyarakat setelah adanya usaha tambak udang pedagang mencapai Rp1.500.000 per bulan dan Nelayan yang bekerja sebagai pekerja tambak mencapai Rp2.400.000 per bulan.
Effect of Adding Calcium Dolomite (CaMg(CO3)) and Tohor (CaO) in Cultivation Media to Increase Moulting of Litopenaeus vannamei Wahyuni, Septia Tri; Lestari, Dewi Putri; Diniariwisan, Damai
Journal of Fish Health Vol. 4 No. 2 (2024): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v4i2.4945

Abstract

Vaname shrimp (Litopenaeus vannamei) is a fishery commodity that is the largest contributor to exports compared to other commodities. The success of shrimp survival and growth cannot be separated from the molting process, which requires calcium. The calcium that absorbed from the cultivation media can play a greater role in the process of exoskeleton formation. Dolomite lime (CaMg(CO3)) and tohor (CaO) can be sources of calcium that can be added to cultivation media. The research method used in this study was a completely randomized design (CRD) consisting of 5 different treatments (A: without additional lime, B: 0.8 gr dolomite, C: 0.8 gr tohor, D: 0.3 gr dolomite + 0.5 gr of tohor, E: 0.5 gr of dolomite + 0.3 gr of tohor) with 3 repetitions. The results showed that the addition of lime at different doses provided a molting frequency ranging from 2.07 – 3.23 times during the 60 days rearing period, where treatment E was the optimum treatment. The absolute weight growth obtained ranged from 2.52 gr – 5.03 gr, with an absolute length of 5.25 cm – 9.11 cm. The highest survival rate during maintenance in treatment E reached 72%. The water quality conditions measured during the activity were alkalinity 135 – 146 ppm, Ca hardness 132.74 – 172.39 ppm, temperature 29.9 – 30.3°C, DO 6.3 – 6.5 mg/l, pH 7 .9 – 8.3 and salinity 32 -34 ppt.
Co-Authors Dewi Putri Lestari, Dewi Putri Diniariwisan, Damai Maulana, Rona Murtadha, Hasan Naban, Sulton Hamid Faros Putrajab, Eka Wawan