Pengaruh Pemberian Pakan Alami yang Berbeda terhadap Kelangsungan Hidup dan Laju Pertumbuhan Larva Ikan Peres (Osteochilus SP.)

This research aims to analyze the effect of feeding different natural against the survival and growth rate (absolute growth of long, heavy growth of absolute and specific growth rate) fish larvae of peres (Osteochilus sp.). This research was conducted at the Unit Implementing Seed Fish Lukup Badak, Department of livestock and Fisheries Pegasing sub-district, Aceh Tengah District in August to September 2015. The fish test was using fish larvae of peres the aged of 3 days with an average length of 0.4 cm and a weight of 0.001 g/tail. Feed natural feed is used it Daphnia sp., Artemia salina, Tubifex sp and Infusoria. Feeding channeled in adlibitum with feeding frequency 4 times a day. Maintenance was carried out on fish aquariums are equipped with aeration. Fish kept for 15 days. Statistical analysis using one-way ANOVA. The experimental design used completely randomized design (CRD) with 4 levels of treatment and 3 replication. The treatments done covers different feeding treatments; A (Daphnia sp.), B (Artemia salina), C (Tubifex sp.), and D (Infusoria). The results of the ANOVA showed that the natural feeding of different influential real against the survival of larval fish growth rate and peres (Osteochilus sp.). Advanced test Duncan also showed that feeding Artemia salina gives the best results in terms of survival (98%), growth of absolute weight (1.02 g), growth of the absolute length (8.81 mm) and specific growth rate (5.68%). These results differ markedly (P < 0.05) with the type of Daphnia sp. feeding Tubifex sp, sp and Infusoria.Penelitian ini bertujuan untuk menganalisis pengaruh pemberian pakan alami yang berbeda terhadap kelangsungan hidup dan laju pertumbuhan (pertumbuhan panjang mutlak, pertumbuhan berat mutlak dan laju pertumbuhan spesifik) larva ikan peres (Osteochilus sp.). Penelitian ini dilakukan di Unit Pelaksana Teknis Balai Benih Ikan Lukup Badak Dinas Peternakan dan Perikanan Kecamatan Pegasing, Kabupaten Aceh Tengah pada bulan Agustus sampai dengan September 2015. Ikan uji yang digunakan adalah larva ikan peres berumur 3 hari dengan panjang rata- rata 0,4 cm dan berat 0,001 g/ekor. Pakan yang digunakan adalah pakan alami yaitu, Daphnia sp., Artemia salina, Tubifex sp. dan Infusoria. Pemberian pakan dilalukan secara Adlibitum dengan frekuensi pemberian pakan 4 kali sehari. Pemeliharaan ikan dilaksanakan pada akuarium yang dilengkapi dengan aerasi. Ikan dipelihara selama 15 hari.Analisis statistik menggunakan ANOVA satu arah. Rancangan Percobaan yang digunakan yaitu Rancangan Acak Lengkap dengan 4 taraf perlakuan dan 3 ulangan. Perlakuan yang dilakukan meliputi perlakuan pakan yang berbeda; A (Daphnia sp.), B (Artemia salina), C (Tubifex sp), dan D (Infusoria). Hasil ANOVA menunjukkan bahwa pemberian pakan alami yang berbeda berpengaruh nyata terhadap kelangsungan dan laju pertumbuhan larva ikan peres (Osteochilus sp.). Uji lanjut Duncan juga menunujukan bahwa pemberian pakan Artemia salina memberikan hasil yang terbaik dari segi kelangsungan hidup (98%), pertumbuhan berat mutlak (1,02g), Pertumbuhan panjang mutlak (8,81mm) dan laju pertumbuhan spesifik (5,68%). Hasil ini berbeda nyata (P<0,05) dengan jenis pakan Daphnia sp, Tubifex sp dan Infusoria. This research aims to analyze the effect of feeding different natural against the survival and growth rate (absolute growth of long, heavy growth of absolute and specific growth rate) fish larvae of peres (Osteochilus sp.). This research was conducted at the Unit Implementing Seed Fish Lukup Badak, Department of livestock and Fisheries Pegasing sub-district, Aceh Tengah District in August to September 2015. The fish test was using fish larvae of peres the aged of 3 days with an average length of 0.4 cm and a weight of 0.001 g/tail. Feed natural feed is used it Daphnia sp., Artemia salina, Tubifex sp and Infusoria. Feeding channeled in adlibitum with feeding frequency 4 times a day. Maintenance was carried out on fish aquariums are equipped with aeration. Fish kept for 15 days. Statistical analysis using one-way ANOVA. The experimental design used completely randomized design (CRD) with 4 levels of treatment and 3 replication. The treatments done covers different feeding treatments; A (Daphnia sp.), B (Artemia salina), C (Tubifex sp.), and D (Infusoria). The results of the ANOVA showed that the natural feeding of different influential real against the survival of larval fish growth rate and peres (Osteochilus sp.). Advanced test Duncan also showed that feeding Artemia salina gives the best results in terms of survival (98%), growth of absolute weight (1.02 g), growth of the absolute length (8.81 mm) and specific growth rate (5.68%). These results differ markedly (P < 0.05) with the type of Daphnia sp. feeding Tubifex sp, sp and Infusoria. <w:LsdExc

Inshore migration of tropical glass eels (Anguilla spp.) in Lambeso River, Aceh Jaya District, Aceh Province, Indonesia

The objective of the present study was to evaluate the migration time of glass eels (Anguilla spp.)  in the estuary of  Lambeuso River, Aceh Jaya District, Indonesia. The survey was done in March and June 2015.  The sampling location was determined based on an initial survey during February 2015 by considering the river condition. Based on initial survey there are no glass eels were recorded during noon time, and therefore the sampling was focused at night. The sampling was done four times a month (weekly basis) for three months (12 times in total) using trap nets based on Hijri Calendar. The trap was settled up to opposite direction of tide (seaward) from 18.00 PM to 06.00 AM  and the catches glass eels were monitoring one-hour interval.  A total of 131 glass eels were sampled during the study, where the samples were only caught on first (new month) and fourth week (old month) base on Hijri Calender  during spring tide and  no glass eels were sampled during second and third weeks. It was concluded that the migration time of the glass eels (Anguilla spp.) in Lambeso Rivers is during the dark moon at the new and old month of Hijri Calenda

Assessing the species composition of tropical eels (Anguillidae) in Aceh Waters, Indonesia, with DNA barcoding gene cox1. [version 1; referees: 1 approved, 2 approved with reservations]

The objective of the present study was to evaluate the species diversity of eels native to Aceh waters based on genetic data. Sampling was conducted in western coast waters of Aceh Province, Indonesia, from July to August 2016. Genomic DNA was extracted from the samples, a genomic region from the 5’ region of the cox1 gene was amplified and sequenced, and this was then used to analyse genetic variation. The genetic sequences were blasted into the NCBI database. Based on this analysis there were three valid species of eels that occurred in Aceh waters, namely Anguilla marmorata, A. bicolor bicolor, and A. bengalensis bengalensis

Assessing the species composition of tropical eels (Anguillidae) in Aceh Waters, Indonesia, with DNA barcoding gene cox1. [version 1; referees: 1 approved, 2 approved with reservations]

The objective of the present study was to evaluate the species diversity of eels native to Aceh waters based on genetic data. Sampling was conducted in western coast waters of Aceh Province, Indonesia, from July to August 2016. Genomic DNA was extracted from the samples, a genomic region from the 5’ region of the cox1 gene was amplified and sequenced, and this was then used to analyse genetic variation. The genetic sequences were blasted into the NCBI database. Based on this analysis there were three valid species of eels that occurred in Aceh waters, namely Anguilla marmorata, A. bicolor bicolor, and A. bengalensis bengalensis

Growth performance and feed utilization of keureling fish Tor tambra (Cyprinidae) fed formulated diet supplemented with enhanced probiotic. [version 1; referees: 2 approved]

Background The objective of the present study was to determine the optimum dosage of probiotic in the diet of keureling fish (Tor tambra) fry. Methods Lactobacillus casei from Yakult® was used as a starter, and enhanced with Curcuma xanthorrhiza, Kaempferia galanga and molasses. The mixture was fermented for 7 days prior to use as probiotic in a formulated diet containing 30% crude protein. Four levels of probiotic dosage; 0 ml kg (control), 5 ml kg , 10 ml kg and 15 ml kg were tested in this study. The fish was fed twice a day at 08.00 AM and 06.00 PM at the ration of 5% body weight for 80 days. Results The results showed that growth performance and feed efficiency increased with increasing probiotic dosage in the diet from control (no probiotic) to 10 ml kg of probiotic dosage and then decreased when the dosage was increased up to 15 ml kg . Conclusions The best values for all measured parameters were recorded at the dosage of 10 ml kg . Therefore, it was concluded that the optimum dosage of enhanced probiotic for T. tambra fry was 10 ml kg of feed