The objective of the present study was to evaluate the giving candlenut oil (aleurites moluccanus) in commercial feed on feed conversion ratio and feed efficiency of bileh fish (Rasbora sp.). Thecompletely randomized design method was used in this study with four treatments and three replications. The treatments studied were pellet without the giving candlenut oil (P0), pellet with the giving candlenut oil 5%/kg of feed (P1), pellet with the giving candlenut oil 10%/kg of feed (P2) and pellet with the giving candlenut oil 15%/kg of feed (P3). Bileh fish seed stocking density was 1 individu/l with the length of  3,5-4 cm and weight of 0,61-0,86 g. The culture period of fish farming was 40 days. The ANOVA test showed that the commercial feed with the giving candlenut oil gave significant effect on feed conversion ratio, feed efficiency, specific growth rate of bileh fish (Rasbora sp.), but did not give significant effect on survival rate of bileh fish seed. The best dose to increase feed efficiency and low feed conversion ratio of bileh fish seed is pellet with the giving candlenut oil 15%/kg of feed (P3).

Caulerpa racemosa known as “sea grape” is green seaweed found in the coast of Balai Island Aceh Singkil, but the coastal community has not yet utilized this green seaweed. This study aimed to determine the antioxidant activity of C. racemosa extract from Balai Island Aceh Singkil. In research method, the sample of C. racemosa was collected from Balai Island Aceh Singkil and crude extracts were prepared using ethanol, ethyl acetate, and n-hexane. The yield and phytochemical assay were measured then followed by the in vitro antioxidant assays including CUPRAC and FRAP. The result showed the highest yield was found in the ethanol (1.36%), followed by n-hexane (0.45%) and ethyl acetate extract (0.405%). C. racemosa crude extract has contained phenolic, flavonoid and tannin compounds. Measurement of antioxidant activity using the CUPRAC and FRAP methods respectively showed that the ethanol extract had higher activity with a value of 46.45±4.03 μmol trolox/g and 358±1.41 μmol trolox/g, compared to crude extract of ethyl acetate with a value of 23.74±0.03 μmol trolox/g and 568±7.07 μmol trolox/g. While the value of n-hexane extract was 21.56±0.028 μmol trolox/g and 15 μmol trolox/g. Some of these bioactive compounds possess a new antioxidant agent with potential for nutraceutical industry.

The purpose of this Community Service is to apply the research results of the proposer team's research for community empowerment in Pante Ceureumen District, West Aceh. Research results are applied to the activity program MERDEKA 74 "(Minapadi Together with Local Fish 7 Species and 4 Legowo) which is a system of planting rice by cultivating fish in one rice field simultaneously. This program aims to increase farmers' income with high rice yield productivity and increase local fish production. The activity was carried out for 6 months at the Pante Ceureumen District, West Aceh. The results observed included rice production and fish production in the Minapadi system. The production of 2: 1 legowo planted rice has a significant effect on the parameters of rice production, namely (16.17 kg /Ha). Meanwhile, the production of cultivated fish (7 species) are catfish, bileh fish, tilapia, goldfish, catfish, catfish and giant prawns. The 7 species are able to develop and be cultivated well.

Tujuan Pengabdian Berbasis Riset Universitas Teuku Umar ini adalah untuk mengaplikasikan hasil penelitian riset tim pengusul untuk pemberdayaan masyarakat di Kecamatan Beutong, Nagan Raya. Penerapan hasil riset dilakukan pada program kegiatan Teknologi milenial (Minapadi legowo dengan ikan lokal) yang merupakan sistem menanam padi dengan budidaya ikan di dalam satu areal persawahan secara bersamaan. Teknologi ini bertujuan untuk meningkatkan pendapatan hasil petani dengan produktifitas hasil padi yang tinggi dan meningkatkan produksi ikan lokal. Kegiatan dilakukan selama 5 bulan bertempat di Kecamatan Beutong Nagan Raya. Hasil yang diamati meliputi produksi padi dan produksi ikan pada sistem minapadi. Produksi padi tanam legowo 2 : 1 memberikan pengaruh nyata terhadap parameter hasil produksi padi (ton ha‾¹) yaitu (3.04 ton ha‾¹). Sedangkan bobot ikan/petak sebesar (242.25 g) dan tingkat kelangsungan hidup ikan /petak yaitu (65.27 %).

Probiotics application in aquaculture sector has been promoted since the government has banned antibiotics application in aquaculture sector. Probiotics are very useful in aquaculture because it can accelerate fish growth, improve fish health, and maintain water quality in good condition. However, there are many fish farmers who do not know the advantages, manufacturing techniques and the application of probiotics to support aquaculture activities. Therefore, we have conducted this community service for fish farmers in Meunasah Sukon Village, Lembah Sabil District, Southwest Aceh Regency. This community service is carried out through counseling by describing the benefits of probiotics, followed by discussions with participants and probiotics practice using natural ingredients that are easily available. The result showed that the level of understanding and knowledge of fish farmers in this village about the benefits of probiotics, how to manufacture and its application were increases after this community service was conducted. The activities of enhancement fish farmer capacities are needed to improve their abilities about information on aquaculture renewable technology.