Pulau Lombok memiliki potensi dalam industrialisasi lobster. Aspek makanan alami larva perlu dipahami untuk mendukung pembenihan lobster. Tujuan penelitian ini untuk menganalisis makanan alami dalam lambung dan mikrohabitat lobster pasir (Panulirus homarus) fase Puerulus. Cairan lambung dari sepuluh ekor Puerulus dianalisis dengan metode analisis plankton. Makanan alami di mikrohabitat dikoleksi dengan menyaring seratus liter air laut dari alat tangkap dengan jaring plankton. Makanan alami dalam lambung meliputi fitoplankton dan zooplankton. Fitoplankton terdiri atas satu kelas yaitu bacillariophyceae, tiga ordo yaitu rhabdonematales; naviculales; fragilariales; dan tiga spesies yaitu: Grammatophora marina, Navicula cancellata, dan Synedra radians. Zooplankton terdiri atas kelas oligothriceae ordo choreotrichi spesies Tintinnopsis lobiancoi. Makanan alami di mikrohabitat juga terdiri atas fitoplankton dan zooplankton. Struktur komunitas fitoplankton terdiri atas enam kelas; 26 ordo; dan 39 spesies, sedangkan komunitas zooplankton terdiri atas 10 kelas; 10 ordo; dan 20 spesies. Indeks keanekaragaman makanan alami dalam lambung sebesar 1,39. Rata-rata nilai kelimpahan, indeks keanekaragaman, keseragaman, dan dominansi fitoplankton, serta zooplankton di mikrohabitat berturut-turut 65.744 sel/50 mL; 3,03; 0,82; 0,08; serta 182 sel/50 mL; 1,89; 0,62; 0,3. Grammatophora marina, Navicula cancellata, Synedra radians, dan Tintinnopsis lobiancoi berpotensi sebagai pakan alami larva lobster pasir (Panulirus homarus).Lombok Island has a high potential to be developed as a central area for lobster farming industry due to the abundance of puerulus in the area. One of the requirements to support the industry is by providing the biological aspect information of spiny lobster (Panulirus homarus) especially its local natural diet during the puerulus phase, which is required to develop a sustainable operation of lobster hatchery. This research was aimed to determine the natural diet in the stomach and microhabitat of puerulus of spiny lobster. The natural diet in the stomach fluid of ten Puerulus was determined using plankton analysis method, while the natural diet in the lobster microhabitat was collected by filtering one hundred liters of seawater in the catching media by using plankton nets. The natural diet in the stomach of puelurus includes phytoplankton and zooplankton. Phytoplankton consisted of one class, bacillariophyceae; three ordines, rhabdonematales, naviculales, fragilariales; and three species, Grammatophora marina, Navicula cancellata, and Synedra radians. Zooplankton consisted of class oligothriceae, ordo choreotrichi, species Tintinnopsis lobiancoi. The natural diet in the microhabitat also consisted of phytoplankton and zooplankton. The community structure of phytoplankton consisted of six classes; 26 ordines; and 39 species, while zooplankton consisted of 10 classes; 10 ordines; and 20 species. The diversity index of the natural diet in the puerulus stomach was classified as moderate H’ 1.39. The averages of abundance, diversity, similarity, and dominance index of phytoplankton and zooplankton in the microhabitat were 65,744 cell/50 mL; 3.03; 0.82; 0.08; and 182 cell/50 mL; 1.89; 0.62; 0.3 respectively. Grammatophora marina, Navicula cancellata, Synedra radians, and Tintinnopsis lobiancoi were found to be dominant and have the potential to be developed as the natural hatchery diet for spiny lobster larvae.
Buah Makasar [Brucea javanica (L) Merr] is one of the local plants in Lombok Island that is traditionally used for diabetic medication. The purpose of this research was to identify the chemical constituents containing in methanol leaves and seed extract of Buah Makasar. The methods used were phytochemical screening for some groups of chemical compounds and GC-MS analysis. The result of phytochemical screening showed that methanol extract of B. javanica seed contains alkaloids, terpenoids, and tannin with a high intensity; while the leaves extract contains alkaloids, flavonoids, steroids, tannin, and saponin. The differences of chemical compositions in the leaves and seed extract may give them have different bioactivities. GC-MS analysis showed some fatty acids containing in the seed extract such as stearic acid and palmitic acid.
[Bahasa]: Komponen biaya terbesar dari usaha budidaya lobster adalah pakan. Pakan buatan diyakini merupakan salah satu solusi berkelanjutan bagi pengembangan industri budidaya yang ramah lingkungan. Dengan demikian, inovasi formulasi dan pembuatan pakan buatan harus terus dilakukan. Tujuan pengabdian ini adalah untuk memberikan keterampilan kepada pembudidaya lobster untuk memproduksi pakan buatan berbentuk gel berbasis bahan lokal di Dusun Telong-Elong Jerowaru Lombok Timur. Metode yang digunakan adalah Participatory Action Research (PAR). Peserta pelatihan menginisiasi, menyiapkan, dan mempraktekkan langsung cara pembuatan pakan dengan dibimbing oleh pengabdi. Evaluasi pakan yang dihasilkan meliputi tiga hal yaitu: tekstur (kelenturan), attractabilty (daya tarik), dan water stability (ketahanan dalam air). Melalui pelatihan yang difasilitasi oleh Australian Center for International Agricultural Research (ACIAR), pembudidaya berhasil memproduksi pakan buatan dengan karakteristik sebagai berikut: tekstur pakan yang dihasilkan menyerupai tekstur daging udang; daya tarik pakan sangat bagus; dan pakan mampu tidak hancur di dalam air selama 24 jam sebelum dimakan oleh lobster. Kelemahan pakan yang dihasilkan adalah tidak bisa bertahan lama ketika dimastikasi oleh lobster. Hal ini menyebabkan sebagian nutrien dalam pakan larut dalam air. Secara umum, pakan yang dihasilkan telah memenuhi sebagian besar kriteria yang diperlukan bagi pakan buatan lobster. Kombinasi binder perlu dikaji ulang untuk mengatasi kelemahan dalam pakan. Kata Kunci: pelatihan, pakan buatan, lobster, budidaya [English]: The major cost of lobster aquaculture is in the feed. The artificial feed is one of the viable solutions for development of aquaculture industry as it is environmentally friendly. Therefore, the innovation in formulating and producing the artificial feed shall be pursued. The purpose of this community service program is to equip the lobster farmers with the skills in producing artificial feed using local ingredients in Lombok Island. Participatory Action Research (PAR) method was used in this program. The participants initiated, prepared, and practiced the skills directly guided by the trainers. Artificial feeds produced by the participants were then evaluated including the texture, attractability, and water stability. Through this training facilitated by the Australian Center for International Agricultural Research (ACIAR), lobster farmers succeeded in producing artificial feed with the characteristics: the texture is similar to the texture of shrimp meat, the attractability is very good, and cannot be destroyed in water for 24 hours before being eaten by lobsters. The disadvantage of artificial feed is that it is unstable when masticatied and eaten by lobsters. This cause some of nutrients in the feed dissolve in water. In general, the artificial feed produced by lobster farmers have fulfilled the criteria of lobster feed. Binder combination is need to be reviewed to overcome weakness in artificial feed. Keywords: training, artificial feed, lobster, aquaculture
Tanaman rengga (Amomum dealbatum Roxb) tergolong family Zingiberaceae. Tanaman ini merupakan tanaman khas Pulau Lombok yang masih jarang dimanfaatkan potensinya. Buah tanaman rengga biasa dikonsumsi oleh masyarakat setempat, namun kandungan nutrisinya belum dilaporkan. Penelitian ini bertujuan untuk menganalisis kandungan nutrisi pada buah rengga yang terdapat di Pulau Lombok. Kandungan nutrisi meliputi kadar air, kadar abu, kadar serat, lemak, protein dan karbohidrat menggunakan analisis proksimat mengikuti metode AOAC 2005. Hasil analisis proksimat menunjukkan kandungan nutrisi buah rengga yaitu kadar air 55,19±0,27%; kadar abu 3,72±0,10%; kadar karbohidrat 34,51±0,03%; serat 6,46±0,57%; lemak 2,87±0,05%; dan protein 3,13±0,09%.
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