Deni Radona
Balai Penelitian dan pengembangan Budidaya Air Tawar

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KARAKTERISASI REPRODUKSI DAN NILAI HETEROSIS HASIL PERSILANGAN IKAN GURAME BASTAR DAN BLUESAFIR Deni Radona; Nunak Nafiqoh
BERITA BIOLOGI Vol 13, No 2 (2014)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v13i2.689

Abstract

Hybridization is one alternative of genetic improvement to increase the production of commercialize commodity. The aim of this study was to determine the character of reproductive performance and the value of heterosis from cross-breeding of giant gouramy (Osphronemus gouramy) strain Bastar and Bluesafir. Crosses were performed in both directions (reciprocal) with naturally spawning system. Two pairs of giant gouramy of each strain were used, each pair contained 4 ? and 1 ?. Every pairs were reared in 3 x 3 m of pond.Reproductive characterization, such as Fecundity, Ovo Somatic Index, egg diameter, egg weight, Fertilization Rate (FR), Hatching Rate (HR), the latency time of hatching, and yolk sack absorbtion period, were observed. Other parameters including larval lenght and Survival Rate (SR) were also observed. Heterosis (H) value was calculated from FR, HR and SR. Result showed that each population and its cross-breed had no different in reproductive characters. Latency time of hatching, egg diameter, egg weight and yolk sac absorbtion period values were 3 ± 0 days; 0.74 ± 0.05 cm; 11 ± 4 mg dan 9 ± 1 days, respectively. Meanwhile fecundity value showed that Blusafir strain had higher fecundity (3661 ± 624), and Ovo Somatic Index percentage (21.96 ± 3.74). The highest HR was presented by ? Bluesafir x ? Bastar (97.95 ± 0.47 %), meanwhile ? Bastar x ? Bluesafir presented the highest FR and SR (99.15 ± 0.34 % and 92.57 ± 0.40 %). Heterosis value showed that cross-breeding between ? Bastar x ? Bluesafir had better HR and SR (1.20 and 2.37), white hand cross-breeding between ? Bluesafir x ? Bastar presented better FR (0.69).
OPTIMALISASI KEPADATAN BENIH IKAN MAS (Cyprinus carpio) STRAIN RAJADANU PADA PENDEDERAN DI KOLAM AIR TENANG Deni Radona; Sidi Asih; Gleni Hasan Huwoyon
BERITA BIOLOGI Vol 11, No 2 (2012)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v11i2.485

Abstract

National fisheries production is not proportional to the increase of the population now, so that the consumption of animal protein needs are not met.For the sake of national fisheries production there is a need for intensive cultivation technology breakthroughs to spur the density in nursery phase ‘rajadanu’ carp (Cyprinus carpio) strain. This experiment aim to determine the appropriate density of rajadanu carp growth in the pond at the nursery phase. The average length of tested fishes is 2.02 cm and the average initial weight is 0.25 g maintained in the out door plot pool of Research Installation for Germ Plasm of the Research and Development Division of Freshwater Fisheries, Cijeruk, Bogor measuring 1x1x1 m with density 100, 150 and 200 fishes/m3 .Each treatment was repeated 3 times. Feed used was a commercial feed containing 28% protein given in 2 times a day as much as 5% of the total weight of fish. The results showed that after 40 days, each treatment showed no significant difference (P> 0.05) with absolute length and weight growth of the absolute highest in nursery density of 200 fishes/m3 of 1.30 ± 0.10 cm and 1.14 ± 0, 18 cm with a daily growth rate of 1.30 ± 0.10% and 4.08 ± 0.55%, and the highest survival at densities 200 fishes/m3 of 92.5 ± 6.55%.
The growth and survival rate of red tailed tinfoil, Barbonymus balleroides (Valenciennes, 1842) post-larvae in aquariums with different densities Irin Iriana Kusmini; Fera Permata Putri; Deni Radona
Jurnal Iktiologi Indonesia Vol 17 No 1 (2017): February 2017
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v17i1.301

Abstract

Tinfoil barb Barbonymus balleroides (Valenciennes, 1842) is one of the local freshwater fish that have the potential to be cultured as fish consumption as well as ornamental fish. This study aimed to determine of the growth and survival rate of red tailed tinfoil post-larvae based stocking density (3 individual L-1, 4 individua lL-1 and 5 individual L-1). This study was conducted in plasma nutfah research station, Bogor and experimentally used completely randomized design (CRD) with three treatments and three replications for each treatment. The post-larvae used in the experiment were sized 0.37 cm from induced breeding spawning. The post-larvae were reared in the aquarium (dimension= 60x30x30 cm) with a volume of 34 liters water. During reared (90 days) post-larvae were given commercial feed (protein content =40%) at-satiation with frequency of three times per day. The result showed the value of length, weight and the highest specific growth rate (P<0.05) in the treatment of stocking density 5 individual^1 with value of 1.8 cm, 0.24 g and 2.72%, while the highest survival rate of 3 individual-1 with a value of 86.76%. Abstrak Ikan lalawak Barbonymus balleroides (Valenciennes, 1842) merupakan ikan lokal air tawar yang memiliki potensi untuk dibudidayakan sebagai ikan konsumsi maupun sebagai ikan hias. Tujuan penelitian ini untuk mengevaluasi pertumbuhan dan sintasan pascalarva ikan lalawak berdasarkan padat tebar (3 ekor L-1, 4 ekor L-1 dan 5 ekor L"1). Penelitian dilakukan di Instalasi Penelitian Plasma Nutfah Perikanan Air Tawar Cijeruk, Bogor dan dilaksanakan secara eksperimental menggunakan rancangan acak lengkap dengan tiga perlakuan dan tiga kali ulangan. Pascalarva yang digunakan berukuran 0,37 cm dan merupakan hasil pemijahan secara induksi hormon. Pemeliharaan dilakukan dalam akuarium berukuran 60x30x30 cm3 dengan volume air 34 L. Selama 90 hari pemeliharaan pascalarva diberi pakan komersial berbentuk remah yang mengandung protein 40 % secara at-satiasi dengan frekuensi tiga kali per hari (pagi, siang, dan sore). Hasil penelitian menunjukkan nilai panjang, bobot, dan laju pertumbuhan spesifik tertinggi (P<0,05) pada perlakuan padat tebar 5 ekor L-1 dengan nilai 1,8 cm, 0,24 g dan 2,72% sedangkan sintasan tertinggi pada perlakuan 3 ekor L-1 dengan nilai 86,76%.