Yani Hadiroseyani’s research while affiliated with IPB University and other places

The adoption of innovations by hatcheries is closely linked to their preferences for those innovations. Hatchery preferences for live cold-stored Artemia affect hatchery management, production, and business performance. The objectives of this study were to assess the preferences and satisfaction levels of hatcheries and to analyze the financial performance of live cold-stored Artemia as the primary natural feed in L. vannamei hatcheries. Surveys were conducted in this study. A nonprobability sampling technique was used, with information collected through purposive sampling. A total of 18 hatcheries participated in the survey, including 11 that fully adopted live cold-stored Artemia (AC) and 7 that combined the use of live cold-stored Artemia and freshly self-hatching Artemia (AFC). The results of the classification tree analysis revealed that the predictors deemed highly influential on the full adoption of live cold-stored Artemia were technical and market support from producers, as well as the number of employees in the hatcheries. Hatcheries showed satisfaction with live cold-stored Artemia, demonstrated by a customer satisfaction index (CSI) of 81.02% and a customer loyalty index (CLI) of 71.76% in the loyal category. Financial analysis indicated that AC benefited the L. vannamei hatchery business more than the AFC, with benefit–cost ratios of 9.74 and 9.24, respectively. In addition, the IRR value of AC is 158% higher than 150% for AFC. The survival rate is a highly sensitive parameter of L. vannamei hatcheries. The L. vannamei hatcheries will suffer losses when the SR is 30% and lower, resulting in a negative NPV and IRR.

Farming mud crabs (Scylla serrata) in Indonesia generally use seeds from natural habitats, which are caught, held, and transported dry to the farming location. The crabs are held for several days while waiting for consumers. This study analyzed the impact of pre-transport holding times (one, three, and five days) with four replications and an average initial weight of 73.60 ± 12.53 g on the physiological condition and production performance of farming mud crabs in an apartment system. The crabs were transported dry from Muara Gembong, Bekasi Regency, West Java, to the IPB Fisheries and Marine Observation Station (IFMOS) Ancol, North Jakarta, DKI Jakarta, for three hours. The crabs were farming in apartment boxes with a recirculation system for 14 days. The results showed that the crabs experienced severe gill damage indicated by the lysis of gill cuticles and low survival rates, especially after five days of pre-transport holding. The crabs experienced stress in all treatments, as indicated by high glucose levels above 30 mg/dL. The best survival rate was found in the one-day pre-transport holding time, with a value of 87.50% at the holding location and 95% at the farming location. In conclusion, a one-day pre-transport holding time provides better physiological conditions and production performance for mud crab farming in an apartment system. Keywords: crab, gills, natural catch, stress ABSTRAK Budidaya kepiting bakau (Scylla serrata) di Indonesia umumnya menggunakan benih dari alam, yang ditangkap, ditampung, dan kemudian di transportasi kering ke lokasi budidaya. Penampungan kepiting berlangsung beberapa hari sambil menunggu konsumen. Penelitian ini menganalisis dampak lama waktu penampungan pratransportasi (satu, tiga, dan lima hari) dengan empat ulangan dan bobot rata-rata awal 73,60 ± 12,53 g, terhadap kondisi fisiologi dan kinerja produksi kepiting bakau yang dibudidayakan dalam sistem apartemen. Kepiting di transportasi kering dari Muara Gembong, Kabupaten Bekasi, Jawa Barat, ke IPB fisheries and marine observation station (IFMOS) Ancol, Jakarta Utara, DKI Jakarta, selama tiga jam. Kepiting dibudidayakan pada boks apartemen dengan sistem resirkulasi selama 14 hari. Hasil penelitian menunjukkan bahwa kepiting mengalami kerusakan insang yang parah ditunjukkan dengan lisisnya kutikula insang dan tingkat kelangsungan hidup rendah, terutama setelah lima hari lama penampungan. Kepiting mengalami stres dalam semua perlakuan, yang ditunjukkan oleh tingginya kadar glukosa di atas 30 mg/dL. Tingkat kelangsungan hidup terbaik yakni pada lama waktu penampungan satu hari, dengan nilai 87,50% di lokasi penampungan dan 95% di lokasi budidaya. Kesimpulannya, lama waktu penampungan satu hari pratransportasi memberikan kondisi fisiologi dan kinerja produksi budidaya kepiting bakau sistem apartemen yang lebih baik. Kata kunci: insang, kepiting, stres, tangkapan alam

Business will be sustainable if there is a synergistic interaction among the economy’s production, economic, environmental, and social sectors. This research aims to assess the sustainability status of a hybrid grouper nursery in Situbondo, East Java. Sustainability consists of human resources, production, market, economy, technology, and institutional aspects. Multidimensional scaling (MDS) and leverage analysis were done on the data using the RAPFISH software. The average index obtained by all hybrid grouper nurseries with very sustainable status was obtained in the economic aspect with an average value of 83.05, and less sustainable status was obtained in the technological aspect at 49.71. Hybrid grouper nurseries obtained an average index ranging from 50.01 to 66.41 with a fairly sustainable status. Sixteen sensitive factors influence the sustainability index of hybrid grouper nurseries. These factors include health, social relationships between members, coaching and training, availability of transportation, road conditions, survival rate, seed prices, and technology availability. Apart from that, there are payment systems between group businesses, group help, exchange systems between businesses, profit-sharing systems between businesses, personal help, counseling, training, and sources of capital.

Belut (Monopterus albus) merupakan ikan air tawar konsumsi hasil tangkapan dari perairan umum yang dijual dalam keadaan hidup dengan harga tinggi dan permintaan yang terus meningkat. Aktivitas penangkapan, transportasi, dan penampungan menimbulkan kematian yang cukup banyak sehingga mengurangi stok dan nilai penerimaan penjualan belut. Penanganan belut pasca-penangkapan dalam air salin dapat menekan tingkat kematian belut, namun dampaknya terhadap keuntungan bisnis belum diketahui. Penelitian ini bertujuan untuk mengevaluasi penampungan dalam air salin terhadap sintasan dan keuntungan usaha penjualan belut hidup. Penelitian dilakukan pada pedagang besar belut hidup di Jawa Tengah yang memperoleh pasokan belut dari berbagai lokasi di Jawa. Belut uji yang diperoleh dari tiga lokasi yaitu Ciamis, Jawa Barat; Cilacap, Jawa Tengah; dan Lumajang, Jawa Timur; masing-masing ditampung terpisah dan dipelihara selama enam hari dalam air tawar (salinitas 0 g/L) dan air tawar yang ditambah garam krosok pada konsentrasi 6 g/L. Hasil menunjukkan bahwa penampungan selama seminggu dalam salinitas 6 g/L menghasilkan tingkat sintasan belut 1,6 kali dibandingkan dengan penampungan dalam air tawar pada semua lokasi asal belut. Sintasan yang lebih tinggi tersebut meningkatkan nilai penerimaan dan keuntungan usaha.Asian swamp eel (Monopterus albus) is a highly-priced freshwater fish collected from natural waters and sold alive in the market with an ever-increasing demand. Fishing methods, transportation, and holding of live eels before being sold frequently result in significant mortality, which eventually reduces the sales revenue from the business. However, post-capture handling of the eel using saline water could reduce the mortality rate, but the impact on business profits has never been determined. This study was aimed to determine the effects of water salinity on the survival of the eels during the holding period and calculate the profit gain from live eel sales. The research was carried out in the facility of a wholesaler of live Asian swamp eel in Central Java which received eel supply from various locations in Java. The samples of eels were originated from three locations, namely Ciamis, West Java; Cilacap, Central Java; and Lumajang, East Java. The eels were placed in separate containers filled with: fresh water (salinity 0 g/L) and freshwater added with salt at concentration 6 g/L for six days. The results showed that six days holding period in salinity of 6 g/L resulted in a higher survival rate of the eels up to 1.6 times compared to the freshwater. This higher survival has increased the revenues and profitability of the live eels sales.