Dwi Angga Kusuma, 1014111033 (2014) PEMANFAATAN NITRAT ANORGANIK PADA FASE EKSPONENSIAL Tetraselmis sp. Fakultas Pertanian, Universitas Lampung.
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Abstract
ABSTRAK Tetraselmis sp. merupakan salah satu mikroalga yang potensial untuk dibudidayakan sebagai pakan alami. Tetraselmis sp. dipanen sebagai pakan alami pada fase eksponensial. Kegiatan kultur Tetraselmis sp. membutuhkan nutrien pengkaya untuk menghasilkan densitas yang tinggi dan waktu panen yang cepat. Salah satunya adalah nitrat anorganik (NaNO3) yang dibutuhkan oleh Tetraselmis sp. sebagai sumber nitrogen untuk membentuk protein.Manipulasi kandungan nitrat anorganik (NaNO3 ) pada pupuk Conwy dapat menyebabkan variasi pada komposisi biokimiaTetraselmis sp. Penelitian ini bertujuan untuk mengetahui pengaruh pengurangan konsentrasi nitrat anorganik terhadap kandungan protein total serta kepadatan Tetraselmis sp. pada fase eksponensial. Penelitian dilakukan pada tanggal 1-30 Juli 2014 bertempat di Laboratorium Budidaya Perairan Fakultas Pertanian Universitas Lampung. Hasil penelitianmenunjukkan bahwa pemanfatan nitrat anorganik terhadap kepadatan, serta kandungan protein total Tetraselmis sp. pada fase eksponensial memiliki hubungan yang erat sehingga pada kondisi kekurangan nitrat (NO3-) kandungan protein total Tetraselmis sp. tetap tinggi. Berdasarkan Uji t yang diperoleh dari penelitian menunjukkan bahwa pengurangan nitrat anorganik (NaNO3) pada pupuk Conwy belum memberikan pengaruh terhadap kepadatan Tetraselmis sp. dan kosentrasi nitrat anorganik pada media kultur. Kata kunci: Tetraselmis sp., fase eksponensial, manipulasi lingkungan, nitrat anorganik, pupuk Conwy ABSTRACT Tetraselmis sp. is one of the potential for cultivated microalgae as a natural food. Tetraselmis sp. harvested as natural food in exponential phase. Culture activities Tetraselmis sp. need nutrients to produce high density and rapid harvest time. One of themis the inorganic nitrate ( NaNO3 ) required by Tetraselmis sp. as a source of nitrogen to produce proteins. Manipulation of inorganic nitrate ( NaNO3 ) at Conwyfertilizer cause variations in the biochemical composition Tetraselmis sp. This study aims to determine the effect of reducing inorganic nitrate concentration to the total protein content and density of Tetraselmis sp.in the exponential phase. The study was conducted on 1-30 July 2014 held at the Laboratory of Aquaculture, Agriculture Faculty, University of Lampung. The results showed that the use of nitrate anorganic to the density and total protein content of Tetraselmis sp. has a close relationship, thereforetotal protein content remained high in a condition of nitrate deficiency. Based on t test were obtained from the study showed that the reduction of inorganic nitrate ( NaNO3 ) at Conwyfertilizer not give effect to the Tetraselmis sp.density and inorganic nitrate concentration in the culture medium. Key word: Tetraselmis sp., exponential phase, environmental manipulation, nitrate anorganic, fertilizers Conwy
| Item Type: | Other |
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| Subjects: | A General Works = Karya Karya Umum |
| Divisions: | Fakultas Pertanian > Prodi Budidaya Perairan |
| Depositing User: | 3095306 . Digilib |
| Date Deposited: | 09 Jan 2015 03:58 |
| Last Modified: | 09 Jan 2015 03:58 |
| URI: | http://digilib.unila.ac.id/id/eprint/6341 |
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