Southeast Maluku Regency, Maluku. Freshlycollected specimen of sponges and part of coastal plants including barks, leaves, fruits, and twigs were immediately transported to the laboratory. A total of 32 samples were washed with water to remove ABSTRACT Objective: The objective of this study was to investigate the antibacterial activity of coastal plants and marine sponges extracts against fish bacterial pathogens. Methods: Samples were extracted by maceration and the extracts were examined for their antibacterial activities against Streptococcus sp. BJ0509, Staphylococcus aureus ATCC 6538, Aeromonas hydrophila BA03 and Vibrio parahaemolyticus 29S by means of paper disc diffusion method. Active extracts were partitioned and purified by column chromatography. The purified substance was tested for minimum inhibitory concentration (MIC) against seven bacterial fish pathogens namely Streptococcus sp., Vibrio parahaemolyticus, V. alginolyticus, V. harveyi, Photobacterium damselae, Aeromonas hydrophila and A. dhakensis. Results: The highest antibacterial activity against all bacteria used in the assay was demonstrated by OKA 6, a bark extract sample of a coastal plant, Diospyros maritima. It showed a diameter of inhibition zones against Streptococcus sp. BJ0509, S. aureus ATCC 6538, A. hydrophila BA03 and V. parahaemolyticus 29S of 19, 33, 18, and 18 mm, respectively. The column chromatography fraction of OKA 6 inhibited the growth of S. aureus ATCC 6538 with MIC of 3.125 µg/mL. The MIC of this fraction against seven bacterial fish pathogens ranged < 0.098 to 3.125 µg/mL. The antibacterial activity of partially purified substance obtained from column chromatography fractionation of OKA 6 was higher than those of oxytetracycline and kanamycin. Conclusions: This result indicates that antibacterial activity of the partially purified substance is potentially higher than those of the commercial antibiotics tested. It further indicates that OKA 6 extract from D. maritima can serve as a promising resource for the development of therapeutic agents against bacterial infections in aquaculture.

Copra meal is an alternative protein source as fish meal in fish feed because the nutritional value is almost the same. However, copra meal has a relatively high crude fiber content, so efforts are needed to reduce crude fiber content through the fermentation process using the microbe Rizopus sp. which produces cellulase enzymes. This study aims to determine the digestibility level of fermented copra meal in feed as a source of vegetable protein in the maintenance of saline tilapia (Oreochromis niloticus) seeds. The research were conducted with the addition of fermented, dried and powdered copra meal to the feed with a concentration of: (A) 0%; (B) 15%; (C) 30% and (D) 45%. The fish were given test feed on a daily basis with a feeding frequency of once per day. The results showed that giving 15% of the fermented copra meal as plant protein source in the feed gave a better total feed digestibility compared to the addition of unfermented copra meal.

Shrimp farming in Indonesia was initially dominated by Windu Shrimp, but along with the decline in tiger shrimp production due to disease, one of the things that determines the success of shrimp farming businesses, both traditional and intensive, is pest and disease control. Diseases generally occur due to parasitic infections that cause parts of the shrimp's body to be injured, so that other diseases such as fungi, bacteria, and viruses will be more easily exposed to shrimp that have been infected by parasites. This study aims to examine diseases and identify the types of parasites that are cultivated in traditional ponds in Kabba District, Pangkep Regency. There are 15 shrimps with an average size of 14.7 grr and a length of 21.6 cm. This research was carried out in October 2021 - March 2022, the samples were tested at the Integrated Biological Laboratory of the Faculty of Fisheries and Marine Sciences UMI Makassar, South Sulawesi. Ectoparasite examination is carried out on the walking legs, swimming legs and on the tail. The results of the study found 3 (three) types of parasites that infect tiger shrimp, namely Zoothamnium, Vorticella, and Epistylis, all three of which are included in the Ciliata class The prevalence value of the three types of parasites is 50% with the general category (ordinary infection) and an intensity of 41 ind / tail with a moderate category.

White Snapper (Lates Calcarifer) has a fairly complete nutritional content, is favored by the community and has high economic value. The success of white snapper cultivation is determined by the availability of feed during maintenance. This study aims to analyze the use of gold snails as a substitute for pellet feed on the growth and survival of white snapper, by feeding gold snails, pellets and a combination of both. The research took place from July to November 2021 at the Pond and Field Laboratory of FPIK, Indonesian Muslim University in Kalibone, Pangkep. The method was a completely randomized design (CRD) with 3 treatments and 3 replications; namely Treatment A (pellets), Treatment B (conch Emas) and Treatment C (pellets and snails Emas). Parameters measured were growth rate of fish body weight and length, Specific Growth Rate (SGR), Survival, Feed Conversion Ratio (FCR). The data were analyzed using analysis of variance value (ANOVA) and further test of Least Significant Difference (LSD) was performed if the ANOVA was significant using SPSS 22 software. The results of this study showed that the treatment used had no significant effect on all parameters measured except for absolute length growth. This shows that the use of golden snails for barramundi feed can be used to substitute pellet feed which is relatively more expensive. Even in the growth parameters, the use of golden snails was better than pellet feed, although the difference in growth was not statistically significant.

Desa Bontominasa merupakan salah satu desa yang terletak di Kecamatan Bulukumpa, Kabupaten Bulukumba dengan dominasi penghasilan masyarakat melalui Pertanian dan Peternakan. Sistem pertanian yang selama ini digunakan masih bersifat konvensional dan tentunya belum bisa memaksimalkan potensi alam desa yang ada. Penerapan solusi dan pengembangan potensi yang bisa diberikan antara lain: (1) pelatihan pembuatan akuaponik, (2) penerapan sistem minapadi, (3) pembuatan pupuk organik cair dan pupuk kompos, (4) pemanfaatan bunga tanaman telang sebagai minuman herbal, dan (5) pelatihan pemasaran berbasis digital. Pelatihan pembuatan akuaponik, penerapan sistem minapadi dan pembuatan pupuk organik cair dan pupuk kompos dilakukan dalam tiga tahap yaitu sosialiasi dan penyuluhan, praktik pembuatan instalasi/sistem, serta monitoring dan evaluasi. Pelatihan pemanfaatan bunga tanaman telang sebagai minuman herbal dilakukan melalui dua tahap yaitu sosialisasi dan penyuluhan serta praktik pembuatan minuman herbal. Adapun kegiatan terakhir yaitu pelatihan pemasaran berbasis digital. Pelatihan ini dilakukan dengan empat tahap yaitu pelatihan pemasaran digital, pembuatan media pemasaran digital, pelatihan dan pembuatan iklan digital, serta monitoring dan evaluasi. Program/Produk yang dihasilkan dalam kegiatan ini adalah (1) instalasi akuaponik, (2) sistem budidaya minapadi, (3) produk pupuk organik cair dan pupuk kompos, (4) produk minuman herbal dari bunga telang, dan (5) program pemasaran berbasis digital. Untuk menghasilkan program/produk tersebut dilakukan pengembangan. Draft hasil pengembangan dijadikan sebagai bahan dalam kegiatan pelatihan penerapan inovasi teknologi yang dihadiri oleh masyarakat selaku mitra