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Deteksi Triploid Ikan Nilem (Osteochilus hasselti Valencienes 1842) Hasil Kejut Dingin 4oC Susanti, Desi; Yuwono, Edy; Sistina, Yulia
Biota BIOTA Volume 17 Nomor 3 Tahun 2012
Publisher : PBI Yogyakarta

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Abstract

Protokol triploidisasi cyprinidae nilem dengan kejut dingin 4oC pada 1, 3, atau 5 menit dari waktu fertilisasi dengan lama kejut 15, 20, atau 25 menit terbukti efektif dari parameyter fertilitas, daya tetas, abnormalitas larva, sintasan benih, panjang benih, dan khususnya data dimensi eritrosit benih hasil perlakuan. Dimensi eritrosit berupa ukuran panjang (major axes), lebar (minor axes), luas, dan volume eritrosit. Benih hasil perlakuan kejut dingin terbukti triploid dengan dimensi eritrositnya secara sangat nyata (P<0,01) jauh lebih besar dibanding diploid normal kontrolnya. Perlakuan kejut dingin secara sangat nyata (P<0,01) mempengaruhi fertilitas telur dan panjang tubuh benih, namun tidak nyata (P>0,05) mempengaruhi persentase penetasan, persentase abnormalitas larva, dan sintasan benih. Penerapan protokol triploid kejut dingin nilem yang terbukit efektif untuk pada bidang akuakultur siap dijalankan.Kata kunci: Deteksi triploid, kejut dingin, lama kejut, nilem, dimensi eritrosit
Deteksi Triploid Ikan Nilem (Osteochilus hasselti Valencienes 1842) Hasil Kejut Dingin 4oC Susanti, Desi; Yuwono, Edy; Sistina, Yulia
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 17, No 3 (2012): October 2012
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v17i3.149

Abstract

Protokol triploidisasi cyprinidae nilem dengan kejut dingin 4oC pada 1, 3, atau 5 menit dari waktu fertilisasi dengan lama kejut 15, 20, atau 25 menit terbukti efektif dari parameyter fertilitas, daya tetas, abnormalitas larva, sintasan benih, panjang benih, dan khususnya data dimensi eritrosit benih hasil perlakuan. Dimensi eritrosit berupa ukuran panjang (major axes), lebar (minor axes), luas, dan volume eritrosit. Benih hasil perlakuan kejut dingin terbukti triploid dengan dimensi eritrositnya secara sangat nyata (P<0,01) jauh lebih besar dibanding diploid normal kontrolnya. Perlakuan kejut dingin secara sangat nyata (P<0,01) mempengaruhi fertilitas telur dan panjang tubuh benih, namun tidak nyata (P>0,05) mempengaruhi persentase penetasan, persentase abnormalitas larva, dan sintasan benih. Penerapan protokol triploid kejut dingin nilem yang terbukit efektif untuk pada bidang akuakultur siap dijalankan.Kata kunci: Deteksi triploid, kejut dingin, lama kejut, nilem, dimensi eritrosit
Growth, Food Efficiency, and Enzyme Activities in Yellow Rasbora (Rasbora lateristriata) at Different Feeding Frequencies Susilo, Untung; Sistina, Yulia; Wibowo, Eko Setio; Mahmoud, Hanan Hassan Alsheikh; Hana, Hana; Rachmawati, Farida Nur
Jurnal Biodjati Vol 8 No 1 (2023): May
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v8i1.25029

Abstract

Many studies have been conducted on the feeding frequency in fish, but there is no information on R. lateristriata. Therefore, this study aimed to determine yellow rasbora growth performance, feed efficiency, and digestive enzyme activity at different feeding frequencies. This research was conducted experimentally with four treatments and three replications. The treatments include: P1 fish were fed two times/day; P2 fish were fed three times/day; P3 fish were fed four times/day; and P4 fish were fed five times/day. In this experiment, 420 two-month-old yellow rasboras were used. The experimental results showed that body weight gain, RGR, SGR, CF, FCR, PER, body lipid & protein levels, protein and lipid retention, protease, and amylase activity were not significantly different (p>0.05) between different feeding frequencies. However, lipase and alkaline phosphatase activities differed significantly among the different feeding frequencies. Growth performance, feed efficiency, protease activity, and yellow rasbora amylase are not affected by feeding frequency between two to five times a day. Still, the highest lipase and alkaline phosphatase activity were achieved at the feeding frequency four times a day, but no effect on growth. So, feeding twice a day is considered quite efficient for the culture of yellow rasbora. The results of this study can contribute to the development of fish farming, especially the yellow rasbora, in the future.
Co-Authors Desi Susanti Edy Yuwono Eko Setio Wibowo Farida Nur Rachmawati Hana Hana, Hana Isdy Sulistyo Mahmoud, Hanan Hassan Alsheikh Syawalina Fitria Untung Susilo