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All Journal Zuriat BERITA BIOLOGI Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Indonesian Aquaculture Journal
Rudhy Gustiano
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science

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Journal : BERITA BIOLOGI

 1 
LETHAL DISSOLVED OXYGEN AND BLOOD PROPERTIES OF GREY MULLETS Mugil cephalus IN SEAWATER AND FRESHWATER [Oksigen Terlarut Letal dan Gambaran Darah Ikan Belanak Mugil cephalus di Air Laut dan Tawar] Vitas Atmadi Prakoso; Ki Tae Kim; Byung Hwa Min; Rudhy Gustiano; Young Jin Chang
BERITA BIOLOGI Vol 15, No 1 (2016)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v15i1.2861

Abstract

Ikan belanak Mugil cephalus adalah salah satu spesies ikan euryhaline dan merupakan ikan ekonomis penting yang terdistribusi secara luas di dunia. Namun, penelitian tentang pengaruh faktor lingkungan terhadap metabolisme ikan ini masih kurang banyak diteliti meskipun hal tersebut penting untuk mengoptimalkan budidaya. Karena itu, penelitian ini dilakukan untuk mempelajari tingkat oksigen terlarut (DO) letal dan gambaran darah ikan belanak pada kondisi pemeliharaan dengan salinitas berbeda. Dua kelompok penelitian dilakukan untuk mengukur kadar DO letal dan gambaran darah ikan belanak pada kondisi pemeliharaan di air laut (LOS) dan air tawar (LOF). Pengamatan dilakukan menggunakan closed rectangular chamber dan sampel darah. Hasil penelitian menunjukkan bahwa kondisi ikan belanak menjadi tidak stabil pada kondisi oksigen terlarut di bawah 2 mg/L (1.3 mg/L pada LOS, 1.6 mg/L pada LOF). Dalam kondisi oksigen terlarut menjadi 1 mg/L, aktivitas ikan menurun dan mengalami kematian pada konsentrasi 0.3 mg/L. Kedua kelompok penelitian yang diamati tidak berbeda nyata (P>0.05). Parameter darah seperti Ht, Hb, osmolalitas, kortisol, dan glukosa dalam percobaan LOS memiliki nilai yang lebih tinggi dibandingkan dengan LOF. Percobaan menunjukkan bahwa indikator respon stress pada ikan belanak semakin meningkat dengan menurunnya kandungan oksigen dalam air. Kadar kortisol berada pada nilai 90.7 ng/ml di LOS dan 56.4 ng/ml di LOF, sedangkan kadar glukosa berada pada nilai 169.0 ng/ml di LOS dan 71.5 ng/ml di LOF. Dari penelitian ini dapat disimpulkan bahwa kadar oksigen terlarut bagi ikan belanak dianjurkan tidak berada di bawah 2 mg/L pada kondisi pemeliharaan di air laut maupun air tawar untuk menghindari kematian pada ikan.
HUBUNGAN PANJANG DAN BOBOT IKAN NILA LOKAL, BEST F5 DAN F6 DI PANGKEP, SULAWESI SELATAN PADA UMUR 60 HARI PEMELIHARAAN Irin Iriana Kusmini; Rudhy Gustiano; Fera Permata Putri
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.v13i2.685

Abstract

Best tilapia is breed fish developed by Research Center and Development of Freshwater Aquaculture (BPPBAT) Bogor that has been launched since 2008. Best tilapia is the third generation of gift tilapia. In order to obtain a better growth performance, BPPBAT continued the process of breeding, and to date we have obtained the sixth generations of Best tilapia. This study was aimed to determine growth of tilapia through observation of the relationship between the length and weight of local tilapia, F5 and F6 BEST which were maintained in brackish waters in the Pangkep area, South Sulawesi. Fish samples were taken at random, 30 fishes were taken from each population for length and weight measurement. Calculation of the length-weight of fish in the Pangkep area obtained regression coefficient (b) for local fish 2.4361; BEST F5 3.1077 and F6 3.0522. These values indicated that the local tilapia was negatively allometric while BEST was positively allometric, with local fish condition factor ranged between 0.471-1.334, F5; 0.468-1.479 and 0.498-1.534 F6 respectively. This results has indicating the normal condition of the fish. The length-weight relationship of fish had a value of determinant (R 2) ranged from 0.7829-0.9182, and indicated fish variations influenced by other variables was rather small and has suggested close relationship between length and weight.
KERAGAAN PERTUMBUHAN HIBRIDISASI EMPAT STRAIN IKAN MAS MH Fariduddin Ath-thar; Vitas Atmadi Prakoso; Rudhy Gustiano
BERITA BIOLOGI Vol 10, No 5 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i5.1919

Abstract

One way to support the increase of aquaculture production is to produce superior strains of growth. Carp as one of the potential for these commodities only rely on local strains which have had a decline in quality. For that, the effort to generate superior growth of carp need to be done. One way to do that is by hybridization. We carried out reciprocal crosses of 4 strains of carp Rajadanu, Subang, Majalaya and Kuningan to obtain 16 new strain candidates. Furthermore, growth test was conducted to find out the best candidate of the absolute and specific growth parameters. From these results, it was concluded that the absolute growth in length, weight, and the highest biomass obtained by crosses of SB x RD, the highest length and weight Specific Growth Rate obtained by crosses of RD x MJ. For the highest degree of survival is at the intersection of KN x SB, whereas the highest survival rate in the use of female parent KN. In the dominant male of female survival is the parent SB. The biggest positive heterosis character length growth values obtained by crosses of SB x RD. For the highest weight growth heterosis values obtained by crosses of SB x MJ. On the character of hatching, the highest positive heterosis values obtained by crosses of SB x MJ. The degree of survival of the highest heterosis values obtained by crosses of KN x MJ. On the character of the highest positive heterosis values of biomass obtained by crosses of SB x MJ. As for the character length SGR highest positive heterosis values obtained by crossing two directions of RD and SB. And for the character weight Specific Growth Rate, the highest positive heterosis values obtained by crossing two ways KN and MJ.
Co-Authors Byung Hwa Min Byung Hwa Min Fera Permata Putri Irin Iriana Kusmini Jojo Subagja Ki Tae Kim Ki Tae Kim Laurent Pouyaud MH. Fariduddin Ath-thar Otong Zenal Arifin Titin Kurniasih Vitas Atmadi Prakoso Vitas Atmadi Prakoso Vitas Atmadi Prakoso Young Jin Chang Young Jin Chang