Sandy Putra, 0914111014 (2014) Laju Pertumbuhan Ikan Lele Sangkuriang (Clarias gariepinus)Pada Sistem Resirkulasi Dengan Aplikasi Biofilter Kijing Air Tawar (Pilsbryoconcha exilis). Fakultas Pertanian, Universitas Lampung.
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Abstract
ABSTRAK LAJU PERTUMBUHAN IKAN LELE SANGKURIANG (Clarias gariepinus) PADA SISTEM RESIRKULASI DENGAN APLIKASI BIOFILTER KIJING AIR TAWAR (Pilsbryoconcha exilis) Oleh SANDY PUTRA Ikan lele (Clarias gariepinus) merupakan salah satu komoditas perikanan di Indonesia yang memiliki nilai ekonomi tinggi. Salah satu faktor yang mempengaruhi pertumbuhan ikan lele sangkuriang adalah kualitas air. Selain kebutuhan oksigen, NH3 juga merupakan faktor penghambat dalam pertumbuhan ikan. Konsentrasi NH3 pada tingkat 0,18 mg/l dapat menghambat pertumbuhan ikan. Kijing (Pilsbryoconcha exilis) merupakan organisme filter feeder dapat dikombinasikan dengan sistem resirkulasi sehingga efisien dalam penggunaan air. Tujuan penelitian ini adalah mempelajari pengaruh biofilter kijing air tawar (Pilsbryoconcha exilis) terhadap laju pertumbuhan lele sangkuriang. Penelitian ini menggunakan perlakuan kepadatan kijing air tawar yang berbeda yaitu 100, 150, 200/ 0,6 m3 individu dan kontrol. Hasil penelitian menunjukkan bahwa penambahan kijing air tawar berpengaruh terhadap pertumbuhan dan kelangsungan hidup ikan lele sangkuriang. Pertumbuhan mutlak tertinggi terdapat pada perlakuan 200 individu dengan berat 19.71 gr dan tingkat kelangsung hidup tertinggi terdapat perlakuan 200 individu dengan 80.14 %. Kata kunci: lele sangkuriang, biofilter, kijing air tawar, pertumbuhan, kelangsungan hidup THE EFFECT OF FRESH WATER MUSSEL (Pilsbryoconcha exilis) AS BIO FILTER IN RECIRCULATING SYSTEM ON GROWTH RATE OF SANGKURIANG CATFISH (Clarias gariepinus) By SANDY PUTRA Catfish (Clarias gariepinus) is one of fishery commodities in Indonesia that has a high economic value. The parameter that has an important effect of catfish growth is water quality. Ammonia is a limiting factor to growth rate of cat fish. Concerntation of 0.18 mg/l ammonia (NH3) could inhibit fish growth. Recirculating system combine with bio filter is the way to reduce ammonia. The aim of this research was to study the effect of fresh water mussel (Pilsbryoconcha exilis) as bio filter in recirculating system on growth rate and survival rate of Sangkuriang catfish. This research used four difference treatment density of fresh water mussel there are 0, 100, 150, and 200/ 0,6 m3 mussels. The result showed that all treatment by using fresh water mussel affected the growth and survival rate of Sangkuriang catfish. The highest of absolute growth was found on 200 freshwater mussels treatment by producing catfish weight of 19.71 grams, and the highest of survival rate was found on 200 P. exilis with of rate 80,14%. Keywords: Sangkuriang catfish, bio filter, fresh water mussel, growth, survival rate.
| Item Type: | Other |
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| Subjects: | A General Works = Karya Karya Umum |
| Divisions: | Fakultas Pertanian > Prodi Budidaya Perairan |
| Depositing User: | 431572 . Digilib |
| Date Deposited: | 29 Dec 2014 03:38 |
| Last Modified: | 29 Dec 2014 03:38 |
| URI: | http://digilib.unila.ac.id/id/eprint/6190 |
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