Teknologi budidaya udang vaname superintensif menjadi orientasi sistem budidaya masa depan dengan konsep low volume high density, yaitudikembangkan dengantidak memerlukan lahan yang luas sehingga mudah dikontrol,namun memiliki produktivitas yang tinggi. Lingkungan dan hamparan budidaya yang terkontrol dengan manajemen limbah yang baik diharapkan menjadi satu sistem budidaya udang vaname yang produktif, menguntungkan dan berkelanjutan. Tujuan penelitian yaitu mengevaluasi performansi kinerja budidaya udang vaname, mengidentifikasi masalah dan merumuskan usulan intervensiserta menganalisis aspek ekonomi berkaitan dengan keuntungan yang diperoleh sesuai dengan usulan intervensi.Penelitian dilaksanakan pada tanggal 26 Februari – 26 Mei 2018 di PT. DLA, Garut Jawa Barat. Penelitianmenggunakan pendekatan deskriptif dengan mengamati dan mengikuti seluruh rangkaian proses produksi. Performansi kinerja budidaya yang diukur adalah produktivitas, SR, FCR, pertumbuhan dan kualitas air sebagai data pendukung, identifikasi masalahdigunakanRoot Cause Analysis dan Fishbone Analysis. Sementara itu analisis Rugi/Laba, BC ratio, ROI digunakan untuk mengkaji aspek ekonomi.Hasil menunjukkan bahwa performansi kinerja budidaya tambak superintensif di PT. DLA secara umum belum optimal,produktivitas yang diperoleh sebesar 42 ton/ha dengan padat tebar 350 - 500 ekor/m2, masa pemeliharaan 80 hari dengan ukuran size panen 78, serta persentase SR yang masih di bawah target yaitu 25% dengan nilai rata-rata SR 80% dan FCR 20% yang melebihi target, yaitu 1,7. Akar dari permasalahan yang ditimbulkan yaitu penyakit IMNV yang menyebakan perfomansi kinerja budidaya belum mencapai target produksi. Perusahaan memperoleh keuntungan sebesar Rp. 81.549.872 per tahun dengan nilai B/C ratio 1,022 dengan tingkat persentase modal usaha PT. DLA adalah 10%. Usulan pemecahan masalah secara jangka pendek, menengah dan panjang diperoleh berdasarkan data skoring berdasarkan efesiensi biaya, kemudahan dan dampak yang diperoleh. Lost income dari performansi kinerja budidaya yang tidak sesuai dengan target produksi sebesar Rp. 593.535.999 per tahun.
Tilapia is an economically important fish and is widely cultivated in Indonesia. More food in tilapia farming uses fish meal which needs to be replaced because of dependence as an imported product that affects production costs. One of the local raw materials that can be used as a source of animal protein is magot. This study aims to analyze the right proportion of magot flour with a combination of fish meal and magot flour in feed so as to produce maximum growth and feed efficiency for tilapia seeds. This research was conducted in September to December 2019. Test fish used were tilapia seeds measuring 1-2 cm with an average weight of 0.16 g with a stocking density of 1 fish / m3. Fish are fed twice a day with a percentage of daily feeding of 3% of fish biomass. This study used a completely randomized design (CRD) with five treatments and three replications. The treatment in this research is, treatment A = substitution of fish meal 100% with magot flour 0%, B = substitution of fish meal 75% with magot flour 25%, C = substitution of fish meal 50% with magot flour 50%, D = substitution of flour fish 25% with 75% magot flour, E = substitution of 0% fish flour with 100% magot flour. Data were analyzed using analysis of variance (ANOVA) if there were significantly different treatment effects followed by Duncan's Multiple Range Test with a significance level of 0.05. The results showed that the addition of magot flour 50% gave a significant result (P <0.05) on protein retention with a value of 14.83%, a specific growth rate with a value of 2.00%, absolute weight growth with a value of 4.34 g, and efficiency of utilization feed with a value of 93.59%. No effects were found in the the feed consumption rate and fish survival. Treatment C combination of 50% fish meal and magot flour can give the best results for the growth of Nirwana race Tilapia.
The failure of tiger shrimp (Penaeus monodon) farming could make farmers stop their cultivation activities. As an alternative, vannamei shrimp cultivation gives hope for productive, profitable, and sustainable cultivation. The development of shrimp farming in Tegal City is carried out through simple methods, intensive technology, and the use of Busmetik technology or mini-scale shrimp farming on plastic ponds. The high demand in the shrimp market continues to encourage farmers to increase their productivity by increasing stocking density. The purpose of this study is to determine the performance of vannamei shrimp cultivation which is cultivated intensively including yields, survival rate (SR), feed conversion ratio (FCR), and shrimp growth in Tegal City, Central Java Province. The research was conducted from July to October 2019. The research method used was a case study with 16 plots of ponds, and the average area of the pond was 1000 m². Based on the results of the calculation, it can be seen that the average yield is 1,603 kg per pond with a stocking density of 100 fish/m², a survival rate (SR) is 85.6%, a feed conversion ratio (FCR) is 1.41 and the shrimp growth is 0.16 grams per day. Economically, based on the Benefit-Cost Ratio (B/C ratio) of 1.46, vannamei shrimp cultivation in Tegal City is profitable so that shrimp farming can be carried out sustainably.
Ikan lele sangkuriang merupakan ikan konsumsi air tawar yang memiliki prospek cukup baik. Penerapan teknologi bioflok pada budidaya ikan lele berpotensi mengurangi biaya pakan hingga 10 - 20% dari total biaya produksi, dan juga budidaya dapat dilakukan dengan densitas tinggi (250 – 300 ekor/m3). Tujuan penelitian adalah untuk mengetahui penerapan intervensi dan mengukur performa budidaya. Penerapan intervensi dalam proses produksinya diperoleh perbedaan performa dibandingkan sebelum dilakukan intervensi. Nilai FCR pada kolam non intervensi adalah 1,2 dan SR 66,0% menjadi pembeda dibandingkan dengan kolam intervensi yaitu FCR 0,8 dan SR 88,3%. Penerapan intervensi dengan grading dimulai pada saat DOC 35 lalu setiap 2 minggu hingga panen. Persentasi ukuran panen oversized pada kolam non intervensi sebanyak 28,9% sedangkan pada kolam intervensi 5,3%. Sehingga loss income dapat ditekan dari sebesar Rp 1.036.600 menjadi hanya Rp 78.000.
Abstract:The Harpiosquilla raphidea mantis shrimp in Banten Bay is very important and an abundant marine crustacean in Indonesia. It is common among the most important predators in many shallow, tropical and subtropical marine habitats. Gonad maturity level of mantis shrimp Harpiosquilla raphidea was identified in four phases of development. The first size mature gonad of the female mantis shrimp is 199 mm and the male is 230 mm. The gonad maturity level of the female shrimp in II, III and IV have fecundity ranging from 24.600 to 76.809,with an average of 54.082±13.456 where as the diameter of the eggs at gonad maturity level III is 510-675 µm, with an average diameter of 574±6.98 µm.
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