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INDONESIA
BERITA BIOLOGI
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Arjuna Subject : -
Articles 13 Documents
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Search results for , issue " Vol 17, No 2 (2018)" : 13 Documents clear
BARKODING DNA BURUNG ELANG (FAMILI ACCIPITRIDAE) DI INDONESIA Zein, Moch Syamsul Arifin
BERITA BIOLOGI Vol 17, No 2 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4734.23 KB) | DOI: 10.14203/beritabiologi.v17i2.3108

Abstract

The cytochrome c oxidase subunit I (COI) gene is a reprensentative of all the protein-coding genes of the mitochondrial DNA genome that has been widely used as an animal species identification tool. In this study, 86 sequences of DNA barcodes of members of the family Accipitridae in Indonesia including Nisaetus bartelsi, Nisaetus cirrhatus, Haliaeetus leucogaster, Spilornis cheela, Haliastur indus, and 11 sequences from Genbank were examined. Each species was confirmed through the Basic Local Alignment Search Tool (BLAST). The construction of phylogeny trees based on COI gene sequences was performed by the Neighbors-joining method where the calculation of the genetic distance matrix with the Kimura 2-parameter model was implemented in pairwise distance calculation in the Mega version 6.05 programe. The results of the analysis showed that the divergence within species ranged from 0 to 0.3% (0.13 ± 0.12%), between species ranged from 1.6 to 18.5% (12.8 ± 3.73%), between genera ranged from 13 to 18.6%, and the average in the Accipitridae Family was 11.8%. Therefore, it could form clusters in each species cohesively and clearly separated between the taxa analyzed.
PROFITABILITAS DAN KERAGAAN PERTUMBUHAN BENIH IKAN Tor tambroides DENGAN FREKUENSI PAKAN YANG BERBEDA Subagja, Jojo; Radona, Deni
BERITA BIOLOGI Vol 17, No 2 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4612.971 KB) | DOI: 10.14203/beritabiologi.v17i2.3000

Abstract

Fish of Tor genus have a slow growth character that resulted in increasing production cost. The high production cost is related to the high price of feed. Fish growth can be triggered by an optimal feeding. A feeding strategy is needed to improve the efficiency of production cost. This study aimed to determine the profitability and the performance of the seedling thai mahseer fish with different feeding frequencies. This study was conducted in Germplasm Research Station, Cijeruk in March-April 2014. The fish used in the experiment have a standard length of 2.29 ± 0.12 cm and weight of 0.32 ± 0.07 g derived from induced breeding spawning of the broodstock natural catches which was adapted for four years in pond concrete. The fish were reared in the aquarium (dimension= 40 x 30 x 30 cm) with a water height of 20 cm and a stocking density of 50 individuals each. The experiment was designed by using three treatments and three replications for each treatment. Fish were feed using commercial feed (protein content = 28%) as much as 20% per day of the total biomass. The treatment observed was feeding frequency, namely (A) three times/day, (B) twice/day, (C) once/day. Results of the experiment for 40 days showed that the increasing values of length, weight, specific growth rate, survival rate, biomass and FCR were not significantly difference (P>0.05). The highest benefit value was obtained in the treatment of feeding with a frequency of three times/day (Rp. 332.304 ± 14.819,-).
HUBUNGAN PANJANG DAN BERAT, FAKTOR KONDISI , FEKUNDITAS, DAN PERKEMBANGAN TELUR IKAN TENGADAK (Barbonymus schwanenfeldii) DARI SAROLANGUN, JAMBI DAN ANJONGAN, KALIMANTAN BARAT, INDONESIA Kusmini, Irin Iriana; Subagja, Jojo; Putri, Fera Permata
BERITA BIOLOGI Vol 17, No 2 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4785.944 KB) | DOI: 10.14203/beritabiologi.v17i2.3017

Abstract

Tinfoil barb (Barbonymus schwanenfeldii) is one of the potential local fish to be cultivated as a food or pet fish. The data and information of the growth pattern of species are essential for fish farming success. The observation on the length and weight relationship is an usefull indicator to determine the pattern of growth fish observed. This study aims to determine the growth patterns of tinfoil barb fish based on length and weight relationship, condition factor and fish fecundity of tinfoil barb from Sarolangun, Jambi and Anjongan, West Kalimantan. The 30 samples were taken randomly from each group. Data were analyzed using analysis regression Microsoft Excel. The result showed that the regression coefficient of length and weight relationship was 2.811 for Sarolangun and 2.686 for Anjongan. The regression value indicates that the the growth of tinfoil barb was allometric negative, with an average factor condition ranged from 0.99 to 1.002. Length and weight relationship had determinant value (R2) ranged from 0.79 to 0.96, with the fecundity ranged from 20168 to 232.040 eggs from 9–45.5g of gonad weight. 

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