Aplikasi praktis untuk meningkatkan efektivitas dan efisiensi pemanfaatan pakan dibutuhkan oleh pembudidaya untuk meningkatkan produktivitas udang vaname (Litopenaeus vannamei). Untuk itu, pelapisan tepung kopepoda (Oithona sp.) pada pakan buatan dievaluasi guna mengetahui daya cerna dan rasio konversi pakan. Eksperimen menggunakan akuarium 20x20x30 (cm) dengan volume air 8 liter. Oithona sp. yang telah dikultur selanjutnya dibuat tepung sebagai bahan pelapis pada pakan buatan. Udang vaname dengan bobot awal 2,15±0,03 g diberi pakan perlakuan sebanyak tiga kali sehari selama 35 hari eksperimen dengan metode blind feeding. Empat kelompok perlakuan dengan tiga ulangan dievaluasi, masing-masing pelapisan 0 g, 1 g, 2 g, dan 3 g per 100 g pakan. Kecernaan protein dan rasio konversi pakan pada pelapisan tepung kopepoda 3 g (86,00±1,40% dan 1,14±0,02), 2 g (84,07±1,78% dan 1,19±0,04), dan 1 g (80,78±1,36% dan 1,32±0,03) secara signifikan lebih tinggi daripada 0 g atau tanpa pelapisan (70,55±2,76% dan 1,52±0,08). Kualitas air selama pemeliharaan kondusif untuk pemeliharaan udang vaname. Suhu pada rentang 29-30°C, oksigen terlarut 4,8-4,9 mg/L, salinitas 10-15 ppt, dan pH 7,1-7,3. Hasil studi mengungkapkan bahwa daya cerna dan konversi pakan udang vaname dapat ditingkatkan dengan pelapisan tepung kopepoda pada pakan buatan.
This study aims to determine the clinical symptoms and survival of white vaname shrimp in the prevention of Vibrio alginolyticus infection using miana leaf extract. The study consisted of 4 treatments and 3 replications. The treatments in this study were 1 treatment and 3 treatments using different concentrations of bacteria, namely 103 CFU/ml, 105 CFU/ml, and 107 CFU/ml. The research was carried out in June-July 2020 at the Hatchery Laboratory of the Faculty of Marine and Fisheries Sciences, Hasanuddin University. Data analysis used descriptive analysis and analysis of variance (ANOVA). The results showed that A (control) shrimp was under normal conditions, treatment B (103 CFU/ml) was red, treated C (105 CFU/ml) was red and had necrosis of the body, and treatment D (107 CFU/ml) was shrimp. reddening, necrosis of tail and body segments. The results of data analysis showed that the use of miana leaf extract had a significant effect (p<0.05) on the use of live vaname shrimp. The highest vaname shrimp survival was treatment A (control) at 100%, treatment B (103 CFU/ml) at 90%, treatment C (105 CFU/ml) at 63.33% and treatment D (107 CFU/ml) by 40%.
Pakan merupakan kompenen utama dengan biaya paling mahal dalam budidaya ikan secara intensif. Oleh sebab itu, dicari alternatif pakan murah dengan teknologi sederhana untuk menekan biaya operasinal pakan. Penelitian ini bertujuan mengetahui waktu efektif yang dibutuhkan untuk fermentasi limbah ampas tahu dan isi perut ikan tongkol krai (Auxis thazard) dan mengetahui koloni bakteri. Penelitian dilaksanakan Juni sampai Juli 2021 di Balai Penerapan Mutu Produk Perikanan (BPMPP) Makassar. Metode penelitian ini bersifat eksperimental yaitu fermentasi limbah ampas tahu dan isi perut ikan tongkol selama 4, 8 dan 12 hari dengan perbandingan 1:1 (isi perut ikan tongkol: ampas tahu). Hasil fermentasi kemudian dilakukan perhitungan koloni bakteri menggunakan ALT. Hasil penelitian ALT menunjukkan jumlah bakteri pada fermentasi ampas tahu dengan isi perut ikan tongkol yakni 3.7x106 koloni/g - 5.4x106 Koloni/g pada ikan kecil, 4.2x105 koloni/g - 22.3x105 koloni/g pada ikan sedang, dan 4.2x105 koloni/g - 22.3x105 koloni/g pada ikan besar. Bahwa waktu fermentasi ampas tahu dengan isi perut ikan tongkol berkontribusi terhadap peningkatan jumlah total bakteri. A B S T R A C T Feed is the main component with the most expensive cost in intensive fish farming. Therefore, it is necessary to look for cheap feed alternatives with simple technology to reduce feed operational costs. This study aims to determine the effective time required for fermentation of tofu waste and entrails of tuna krai (Auxis thazard) and to determine bacterial colonies. The research was carried out from June to July 2021 at the Makassar Fishery Product Quality Application Center. This research method is experimental, namely the fermentation of tofu waste and tuna entrails for 4, 8, and 12 days with a ratio of 1:1 (tofu dregs: tuna stomach contents). The results of the fermentation were then calculated using ALT. The results of the ALT study showed that the number of bacteria in tofu dregs fermentation with tuna stomach contents was 3.7x106 colonies/g - 5.4x106 Colonies/g in small fish, 4.2x105 colonies/g - 22.3x105 colonies/g in medium fish, and 4.2x105 colonies. /g - 22.3x105 colonies/g in large fish. That the fermentation time of tofu dregs with tuna stomach contents contributed to the increase in the total number of bacteria.
The aims of implementing the PTDM (Technology Products Disseminated to the Community) program is to increase the resilience of people's knowledge and skills in applying aquabusiness technology, especially making probiotics, making artificial feed made from local raw materials, and cultivating a polyculture system. This community service aims to improve the knowledge and skills of the community in applying aquabusiness technology, especially probiotic production, feed production from local raw materials, and the cultivation of polyculture systems. Service activities through the Technology Products Disseminated to the Community (TPDC) program was conducted in Talaka Village, Ma'rang District, Pangkep Regency, South Sulawesi Province with a total of 20 farmers from the Mina Air Brackish Cultivator Group and the Bujung Tangayya Business Group. The empowerment program is implemented using training methods through non-technical counseling, technical assistance, and plot demonstrations. The achievement of program implementation is determined through evaluation through pre-test and post-test questionnaires as well as observation and performance assessments. The results of the empowerment program have a positive impact on improving the knowledge and skills of partners in applying aquabusiness technology. The empowerment program increased the knowledge and skills of partners in making probiotics by 66.7% to 91.7%, making feed increased by 58.3% to 83.3%, and the knowledge and skills of cultivating the polyculture system increased by 41.7. % up to 83.3%. This increased knowledge and skills has the potential to increase income which can strengthen community food security in the period and post-pandemic Covid-19.
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