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Mulyasari, Mulyasari
Research Center for Biology-Indonesian Institute of Sciences
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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PENGARUH PENAMBAHAN GLISEROL PADA PAKAN TERHADAP PERTUMBUHAN DAN KELANGSUNGAN HIDUP IKAN NILA (Oreochromis niloticus) [Effect of Glycerol Addition into Fish Feed on the Growth and Survival Rate of Nile Tilapia (Oreochromis niloticus)] Suryaningrum, Lusi Herawati; Mulyasari, Mulyasari; Samsudin, Reza
BERITA BIOLOGI Vol 16, No 2 (2017)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3201.575 KB) | DOI: 10.14203/beritabiologi.v16i2.2833

Abstract

The aim of this research was to determine the optimum percentage of glycerol addition into the diets of  Nile Tilapia (Oreochromis niloticus) on growth performance, feed convertion ratio, and survival rate. The research was conducted using 15 aquaria with the size of 60 x 50 x 45 cm3, each containing 25 O. niloticus with average initial weight of 4.63 ± 0.15 g. The experiment was conducted using a complete random design with five treatments and three replications. Isonitrogenous (31%) and isocaloric (17 MJ.kg-1) diets were provided for 60 days of rearing period. Five diets were formulated with glycerol content of 0% (G0); 5% (G5); 10% (G10); 15% (G15), and 20% (G20). Fish were fed twice daily with experimental diet at satiation level. The result showed that addition of 10% glycerol in the diet (G10) presented the highest values for weight gain (105.85 ± 0.40%), specific growth rate (3.44 ± 0.01%), protein retention (27.75 ± 0.02%), protein efficiency ratio (2.53 ± 0.15%), lipid retention (60.44 ± 0.03%), and feed convertion ratio (1.59 ± 0.01%) (P < 0.05). Survival rate was not affected by dietary containing glycerol (P > 0.05). Therefore, addition of 10% glycerol into the diet gave a significant increase on growth performance and feed convertion ratio without adverse effect on survival rate of Nile Tilapia.  
KARAKTERISASI 17 FAMILI IKAN NILA {Oreochromis niloticus) GENERASI KE TIGA (G-3) BERDASARKAN METODE TRUSS MORFOMETRIKS Nuryadi, Nuryadi; Ariiin, Otong Zenal; Gustiano, Rudhy; Mulyasari, Mulyasari
BERITA BIOLOGI Vol 9, No 1 (2008)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1189.01 KB) | DOI: 10.14203/beritabiologi.v9i1.806

Abstract

Objective of the study is to elucidate phenotype characters of nile tilapia (Oreochromis niloticus) of the third generation (G3)resulted from the selection breeding program in the Research Institute for Freshwater Aquaculture Bogor. Phenotypes of seventeen nile tilapia families, were observed using truss morphometric methods. The results showed that the composition average of standard lenght has low coefficient variation mean (10.42%) as well as coefficient variation of the truss measured characters (4.3- 13.3%). The highest index similarity of boddy shape within family was found in family 5 (79.3%), in contrast the lowest was in family 12 (32.3%). For index similarity between families, the highest score was in between family 12 and 17 (22.6).There were 8 characters enabled to differentiate the 17 families observed. They were Al, A3, A5, B2, C3, C5, C5, and D4. Cluster analyses recognized into 4 groups based on the phenotypic distance
KARAKTERISASI GENETIK IKAN KELABAU (Osteochilus kelabau) DARI BERBAGAI LOKASI DI KALIMANTAN BARAT MENGGUNAKAN METODE RAPD (Random Amplified Polymorphism DNA) Kusmini, Irin Iriana; Gustiano, Rudy; Mulyasari, Mulyasari
BERITA BIOLOGI Vol 10, No 4 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (380.725 KB) | DOI: 10.14203/beritabiologi.v10i4.762

Abstract

Kelabau fish (Osteochilus sp.) is an endemic fish to Kalimantan inland waters that is potential to be developed. The aim of this research was to characterize Kelabau fish and to study the data base (genetic character) of kelabau as well as its relationship. The result showed that the highest polymorphism and heterozigosity was on Kelabau Sintang and the lowest was on Kelabau Kapuas Hulu. The closest genetic distance value were between Kelabau Pontianak-Kapuas Hulu (0.5351) and the furthest were between Kelabau Pontianak-Sintang (0.6852).
Co-Authors A.A. Ketut Agung Cahyawan W Ariiin, Otong Zenal Gustiano, Rudy Irin Iriana Kusmini, Irin Iriana Reza Samsudin Rudhy Gustiano Suryaningrum, Lusi Herawati