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Journal : Sain Akuatik

PENGARUH METODE PEMUASAAN TERHADAP PERTUMBUHAN LOBSTER AIR TAWAR (Cherax quadricarinatus) ., Suwarsito; Nugroho, Didik Trianto; Mulia, Dini Siswani
Sain Akuatik Vol 10, No 2 (2007): SAINS AKUATIK VOLUME 10 NO. 2 2007
Publisher : Universitas Muhammadiyah Purwokerto

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Abstract

The aim of research were to know effect of fasting method on growth of aquatic crayfish (Cherax quadricarinatus) and feed efficiency. The experiment used Completely Randomized Design (CRD), consist of 4 treatments and 3 replicates. The treatments were P1 (aquatic crayfish were fed one day and fasted one day), P2 (aquatic crayfish were fasted every Monday and Thursday), P3 (aquatic crayfish were fed two days and fasted two days), and P4 (aquatic crayfish were fed everyday/control). Aquatic crayfish with initial average body weight of 5 g used in this experiment. Aquatic crayfish were cultivated in cement pond (100 x 60 x 50 cm3) with density 20 crayfishes/pond for 40 days. Aquatic crayfish were fed at 5% of body weight. Results of research indicate that fasting method had effect on growth of aquatic crayfish and feed efficiency, but had no effect on survival rate of aquatic crayfish. Treatment P1 showed highest growth of aquatic crayfish and feed efficiency.
PENGARUH PENAMBAHAN METHYL TESTOSTERON DALAM PAKAN TERHADAP NISBAH KELAMIN IKAN GUPPY (Poeocilia reticulate Peters) ., Suwarsito; Syarifuddin, Hamzah; Mulia, Dini Siswani
Sain Akuatik Vol 10, No 1 (2007): SAINS AKUATIK VOLUME 10 NO. 1 2007
Publisher : Universitas Muhammadiyah Purwokerto

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Abstract

This research was conducted to know  the effect of methyltestosteron dietary on sex ratio of guppy and determine the effective dosage of methyltestosteron. This research used experimental method with Completely Randomize Design condist of 4 treatments and replicates. The treatmens were P1 (0 mg/kg), P2 (10 mg/kg) P3 (20 mg/kg), and P4 (30 mg/kg), respectively. Observation of phenotype sex had done by identified of body style and morphologys variety. Percentage of sex ratio and survival rate of guppy were analyzed by ANOVA (Analysis of Variance) and LSD (Least Significant Difference Test). Results of the research showed that  methyltestosteron dietary had effect on sex ratio of guppy (P<0,1), but had no effect on survival rate of guppy (P>0,05). The dosage of 10 mg/kg feed) result the highest percentage of male (61.69%). 
Co-Authors Abdurrohman Muzakki Ade Rusman Adi Imantoyo Ahmad Qurtubi Ahyani, Edi Akhmad Darmawan Al Hikmatul Zahro Kamila Almira Ulimaz Aman Suyadi Aman Suyadi Anang Widhi Nirwansyah Anna Ulie Nafisha Archristhea Amahoru, Archristhea Arif Ihsanul Fikri Arifudin, Opan Aris Hidayat Aris Hidayat Astika Nurul Hidayah Aviza, Aviza Alyama Ayundasari, Cantika Diffa Beny Wijarnako Budi, Larasati Ika Bustanol Arifin Cahyono Purbomartono Cantika Diffa Ayundasari Chodidjah Chodidjah Danang Dwi Harmoko Dedi Mulyawan, Dedi Diana Indra Dewi Didik Trianto Nugroho, Didik Trianto Dini Siswani Mulia Dinny Fauziah Dwi Ma’rifatun Khasanah Eri Zuliarso Esti Sarjanti Esti Sarjanti Euis Meinawati Faiza, Childa Falasifa Azizah Fathurnnadi Shalihati Fitria Aulia Gunadi, Ilham Hamzah Syarifuddin, Hamzah Harjono Harjono Harna Adianto Heri Maryanto, Cahyono Purbomartono, Heri Maryanto, Herlin Widasiwi Setianingrum Hindayati Mustafidah Ibnu Afan Ikhsan Mujahid Jagad, Nimas Ayu Sekar Kinasih Jaka Purwa Nugraha, Jaka Purwa Jejentri, Jejentri Juanita Juanita Lestari, Viviana Lisma M. Agung Miftahuddin Mahmud, Annisa Kayla Azzira Mira Rosita Moh Aya Sofia Mohammad Ardin Pahlevi Mr. Suwarno, Mr. Muhamad Zaeni Budiastanto Mustolikh Mustolikh Nadifah, Itqon Ngaynun Nadiya Nur Apreli Nasril, Nasril Niken Herawati Ni`maturrohmah Ni`maturrohmah Noerhaliza Rachman Asriana Dwi Nur Mahmudah, Fitri Purnomo Purnomo Radin Alhif Dirgantara Rahayu, Wiwit Sayekti Ramli, Akhmad Ratna Kartika Wati Ratna Kartikawati Rifari Baron Ririn Windari, Ririn Rizki Herdani, Rizki Rusnendi Rusnendi Sabila Tri Amelia Sakinah Fathrunnadi Shalihati Salim, Agus Nur Saputra, Eqwar Saputri, Seffiana Aprilka Sembiring, Darmawanta Shahiffa Nur Pranannisa Sigit Sriwanto Sri Wahyuni Sufi Alawiyah Sugeng Priyadi Susanto Susanto Susylowati, Dewi Sutomo Sutomo Sutomo Sutomo Tito Pinandita Triyadi Haryanto Utbah Aminatul Hofisah Veronica Sovita Sari, Veronica Sovita Vivian Lisma Lestari Viviana Lisma Lestari Viviana Lisma Lestari Wahyu Agung Ciptadi Wakhudin Wildan Ahid Mujamal Wiwin Bregasnia Wiwit Sayekti Rahayu Yunia Dwi Pambudi, Yunia Dwi Zahrah Hana Afifah