PHYTOCHEMICALS ANALYSIS OF FRESH AND BOILED GOLDEN APPLESNAIL (Pomacea canaliculata)

The golden apple snail, Pomacea canaliculata, has a complex history in Indonesia, where it was originally introduced as an aquarium fauna in 1981 but later became a pest in rice fields. As a result, there is a need for better understanding of the biological aspects of this species to develop efficient control measures. Phytochemical compounds found in plants, such as phenolic components, glucosinolates, and carotenoids, have various biological activities and potential health benefits. However, the phytochemical properties of the golden snail have not been extensively studied. In this research, samples of raw and boiled golden snail meat were analyzed for alkaloids, steroids, flavonoids, saponins, phenol hydroquinone, and carbohydrates using various methods. The results showed that both raw and boiled golden snail meat tested negative for alkaloids, steroids, flavonoids, saponins, and phenol hydroquinone. However, the Molisch test for carbohydrates gave positive results, indicating the presence of carbohydrates in both samples. These findings contribute to a better understanding of the phytochemical properties of the golden snail and highlight the potential biological activities of these compounds. Further research in this area may lead to the development of more targeted and sustainable control measures for the golden snail as a rice pest. Additionally, the presence of carbohydrates in the snail meat may have implications for its nutritional value and potential uses in the food industry

Digestibility of Feed Supplemented with Common Pleco Meal and Its Impact on The Growth of Nile Tilapia (Oreochromis sp.)

Common pleco is a wild fish whose habitat occupies a lot of reservoir areas and public waters in Indonesia. The amount is abundant and not consumed by humans, is a great potential to be used as a source of animal protein in fish feed. The purpose of this study was to evaluate the digestibility of common pleco fish meal in artificial feed for nile tilapia (Oreochromis niloticus.) The study was carried out at the Aquaculture Laboratory Hatchery, Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran, while the manufacture of common pleco meal, proximate analysis of feed ingredients and the test feed was carried out by the Laboratory of Chemistry and Animal Feed, Faculty of Animal Husbandry, Universitas Padjadjaran. The design used in this study was a Completely Randomized Design (CRD) consisting of 5 (five) treatments and 3 (three) replications. The treatment given was the addition of common pleco flour in artificial feed at 0%, 5%, 10%, 15% and 20%. The parameters observed in this study consisted of digestibility, growth rate, and water quality. The results of the research on some of these parameters indicate that the addition of common pleco meal can still be used in artificial feed up to 10%. The tilapia studied had the highest relative growth with a value of 0.218%. The digestibility level of the studied feed reached a value of 85.256%, and the water quality studied was still within the safe tolerance limits for fish farming. Based on the results of this study, the negative effect on the survival rate of tilapia did not occur until the addition of common pleco flour to artificial feed reached 10%. Thus, the fish meal has the potential as an alternative to fish meal in fish feed formulations

THE CIBIRU FISH SEED CENTER CONTRIBUTIONIN LOCAL FISH AID DISTRIBUTION IN BANDUNG, WEST JAVA INDONESIA

This field activity was conducted from May to July 2023 at the technical services unit Cibiru Fish Seed Center (Cibiru FSC), located in Pasir Biru Village, Cibiru District, Bandung City. The primary aim of this activity is to gain insights into consumption fish cultivation activities and the community-oriented role of the Cibiru FSC. The methodology involves active participation in the FSC's activities, field observations, discussions with field supervisors, and consultations with experts at Cibiru FSC. “Nirwana” tilapia spawning was conducted semi-naturally, employing 3 nets of 4x4 m hapa nets in Pond D Cibiru FSC, which spans 30x30 m. Each hapa net accommodates 100 fish, comprising 25 males and 75 females, with a male-to-female parent ratio of 1:3. Water quality assessments indicate favorable conditions at the Cibiru Fish Seed Center, with a pH level of 8.05, a temperature of 28℃, and dissolved oxygen at 7.8, meeting the prerequisites for optimal tilapia cultivation. The Cibiru FSC plays a pivotal role as both a producer and distributor of fish seeds and fish broodstock, particularly tilapia. Consequently, the FSC engages in distributing fish seeds to various groups, including farmers, without charge. The notable aspect of Cibiru FSC is its commitment to providing fish seeds and distribution services at no cost to the recipients, showcasing its dedication to supporting local fish farming initiatives

Pengembangan Literasi di Taman Bacaan Masyarakat (TBM) Sangkuriang, Kelurahan Rancaekek, Kabupaten Bandung

Introduction to literacy for children will impact the improvement of creativity, quality of life, competitiveness, and good thinking skills. Sangkuriang Reading Centre is a reading park located in Rancaekek Village, Bandung Regency. The existing book collection is not attractive enough to encourage children to engage in literacy activities. This community service activity aims to help provide information, knowledge, and facilities that can support the improvement of children's literacy interest in Sangkuriang Reading Centre. This community service activity is carried out offline. The team directly visited the location and conducted several stages of activities there. Some of the program activities carried out in this activity are book donation, book inventory, numbering, installation of bookshelves, banners, posters, and literacy and games to support the improvement of children's reading interest. After all community service activities were carried out at Sangkuriang Reading Centre, several changes were observed, including changes in knowledge, attitudes, and skill

PROXIMATE COMPOSITION ANALYSIS OF FRESH AND BOILED GOLDEN APPLESNAIL (Pomacea canaliculata)

The golden apple snail (Pomaceacanaliculata) is a freshwater species introduced to Asia for consumption and commercial purposes. This study analyzed the chemical composition and nutritional content of raw and boiled golden snail meat through proximate analysis.Raw snail meat contained 78.10% water, 15.62% protein, 0.8% fat, 2.60% ash, and 2.88% carbohydrates. Boiled snail meat had 77.40% water, 13.67% protein, 0.4% fat, 4.1% ash, and 4.43% carbohydrates.Boiling significantly affected protein and fat content, leading to denaturation and reduced extractability. Unsaturated lipids were prone to oxidation during boiling, lowering fat content.Ash content variation was influenced by sample preparation and testing procedures, representing inorganic residues left after combustion.Carbohydrate content was determined by difference, with raw snail meat at 2.88% and boiled at 4.43%, influenced by decreased water and nutrients during boiling.The study provides insights into golden snail meat's chemical composition and nutritional value, essential for consumers and industries utilizing this species as a source of animal protein and nutrients. Golden snails offer nutritional richness and versatile use, making them valuable resources for communities

UTILIZING WATER HYACINTH (Eichornia crassipes) AS AN ALTERNATIVE FEED SOURCE FOR GRASS CARP (Ctenopharyngodonidella)

Research conducted at the Aquaculture Laboratory of the Fisheries Department, Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran, focuses on utilizing water hyacinth (Eichorniacrassipes) as aquatic weed vegetation as an alternative feed source to grass carp (Ctenopharyngodonidella). The primary objective of this research is to investigate the impact of water hyacinth-based feeding on the growth and survival rate of grass carp. Employing a CompletelyRandomized Design (CRD), the study comprises five treatments, each replicated three times. Parameters assessed include the growth rate and survival rate of grass carp. Data were subjected to analysis of variance, and differences among treatments were assessed via the Duncan Test. The findings revealed that feeding grass carp with water hyacinth at a 5% level resulted in the highest absolute growth (4.076 grams), and the greatest survival rate (95.23%)

Isolation and Characterization of Collagenase from Bacillus thuringiensis for Degrading Fish Skin Collagen of Cirata Reservoir Waste

The objective of this research was to isolate and characterize collagenase of Bacillus thuringiensis obtained from the collection of Aquatic Biotechnology Laboratory, Faculty of Fisheries and Marine Science, Padjadjaran University.  The substrate of collagen was derived from skin Tilapia waste of Cirata Reservoar. This study showed the presence of clear zone which is a sign of colagenolitik activity of B. thuringiensis. The optimum production time of collagenase was 24 hours of incubation. Collagenase of crude extract had collagenase activity of 0.181 units/ml with the protein concentration was 0.640 mg/ml. It was also found that the optimum temperature of collagenase derived from crude extract was 50° C and the optimum pH was 7-9. Keywords: collagenase; Bacillus thuringiensis;  skin, wast

POTENTIAL UTILIZATION OF CASSAVA PEEL WASTE FOR FISH FEED

This manuscript provides a comprehensive review of the potential and utilization of cassava peel as a fish feed ingredient. Agro-industrial activities in Indonesia generate substantial waste, including cassava peel, which can serve as a valuable carbohydrate source in fish feed. Cassava is the third most important food crop commodity in Indonesia, and its productivity has been increasing over the years. Cassava possesses a good nutritional profile, with high starch content and energy value. Fermentation of cassava peel can enhance its nutritional value by increasing crude protein content and reducing anti-nutrients such as cyanide acid. Fermented cassava peel products have been shown to reduce reliance on imported feed ingredients and lower production costs without compromising fish growth. The utilization of fermented cassava peel waste presents a sustainable solution for converting agro-industrial waste into a suitable fish feed ingredient

EFFECTIVENESS OF LACTIC ACID BACTERIA SOLUTION CHALLENGE TEST BY USING DIFFERENT ENVIRONMENTAL CONTROLS CAVENDISH BANANA PEEL FERMENTATION RESULTS AGAINST MACKEREL FISH REVERSE BACTERIA

Mackerel has an economical price, high market demand, and high catch yields so that it is widely used by the wider community compared to other types of pelagic fish, but it has disadvantages, namely that it is highly perishable because after being caught, the fish still undergoes a series of change processes before becoming rotten. Lactic acid bacteria can be applied to preserve fishery products by immersing them in a culture of lactic acid bacteria derived from fermentation. Cavendish banana peel fermentation contains secondary metabolite compounds that have the potential to be antimicrobial, anticancer and antidemartosis. Cavendish banana peels contain flavonoids, alkaloids, tannins, saponins and quinones. This research aims to determine the concentration of environmental controls between salt and vinegar in the Lactic Acid Bacteria fermentation solution from Cavendish banana peels which can provide effectiveness. lactic acid bacteria against mackerel spoilage bacteria. This research was carried out at the Fishery Products Processing Laboratory, Faculty of Fisheries and Marine Sciences, Padjadjaran University in January 2024. This research was carried out by testing Lactic Acid Bacteria from the fermented solution of Cavendish banana peels and spoilage bacteria from mackerel that was soaked for 15 minutes. using paper discs with 3 treatments and 9 repetitions. Observations were made at the 48th hour after incubation at a storage temperature in an incubator of 37oC covering the diameter of the clear zone around the paper disc. The calculation results for estimating the addition of the best environmental control concentration were carried out by analyzing the data using the simultaneous F test followed by the Duncan test. The research results show that the best environmental control concentration addition for Cavendish banana peel fermentation as a source of Lactic Acid Bacteria against mackerel spoilage bacteria to extend shelf life is the addition of 3% salt with a pH of 4.4, a clear zone diameter of 21.37 mm and an effectiveness of 34.1% which is categorized as very strong.Ikan kembung memiliki harga yang ekonomis, permintaan pasar tinggi, dan hasil tangkapan tinggi sehingga banyak dimanfaatkan oleh masyarakat luas dibandingkan dengan jenis ikan pelagis lainnya namun memiliki kekurangan, yaitu mudah rusak (highly perishable) karena setelah penangkapan, ikan masih mengalami serangkaian proses perubahan sebelum menjadi busuk. Bakteri asam laktat dapat diaplikasikan pada pengawetan produk perikanan dilakukan dengan perendaman pada kultur bakteri asam laktat yang berasal dari hasil fermentasi. Fermentasi kulit pisang Cavendish memiliki senyawa metabolit sekunder yang berpontesi sebagai antimikroba, antikanker, maupun antidemartosis. Kulit pisang Cavendish mempunyai kandungan seperti flavonoid, alkaloid, tanin, saponin dan kuinon. Riset ini bertujuan untuk menentukan konsenterasi pengendali lingkungan antara garam dan cuka pada larutan fermentasi Bakteri Asam Laktat (BAL) dari kulit pisang Cavendish yang dapat memberikan efektivitas bakteri asam laktat terhadap bakteri pembusuk ikan kembung. Riset ini dilaksanakan di Laboratorium Pengolahan Hasil Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Padjadjaran pada bulan Januari 2024. Riset ini dilakukan dengan uji tantang Bakteri Asam Laktat yang berasal dari larutan fermentasi kulit pisang Cavendish dan bakteri pembusuk yang berasal dari ikan kembung yang direndam selama 15 menit menggunakan kertas cakram dengan 3 perlakuan dan 9 ulangan. Pengamatan dilakukan pada jam ke-48 setelah inkubasi dengan suhu penyimpanan pada inkubator 37oC meliputi diameter zona bening disekitar kertas cakram. Hasil perhitungan pendugaan penambahan konsenterasi pengendali lingkungan terbaik dilakukan dengan menganalisis data menggunakan uji F simultan dilanjutkan dengan uji Duncan. Hasil riset menunjukkan bahwa penambahan konsenterasi pengendali lingkungan terbaik bagi fermentasi kulit pisang Cavendish sebagai sumber Bakteri Asam Laktat melawan bakteri pembusuk ikan kembung untuk memperpanjang masa simpan adalah penambahan garam 3% dengan pH 4,4, diameter zona bening 21,37 mm dan efektivitas sebanyak 34,1% yang dikategorikan sangat kuat