PENGARUH PEMBERIAN PAKAN YANG BERBEDA TERHADAP KELANGSUNGAN HIDUP DAN PERTUMBUHAN LOBSTER AIR TAWAR (Cherax quadricarinatu)

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh pemberian pakan yang berbeda untuk kelangsungan hidup dan pertumbuhan lobster air tawar (Cherax quadriccarinatus), penelitian ini dilakukan di kolam pembesaran ikan di desa Cubadak Mentawai Kota Pariaman, pada tanggal 10 November 2015 sampai 10 Januarai 2016. Benih lobster air tawar (Cherax quadricarinatus), digunakan sebanyak 180 ekor dengan ukuran panjang awal 3-4 cm, dan berat 0,08 gram /ekor di bagi 15 ekor /wadah. Benih di tempatkan dalam waring berbentuk kotak sebanyak 12 kotak dengan ukuran 50 x 30 x 40 cm, dan volume air yang digunakan 30 cm. Pakan yang diberikan pada benih uji yaitu perlakuan A cacing tanah, perlakuan B kentang, dan perlakuan C pelet. Hasil penelitian menunjukan tingkat kelangsungan hidup lobster air tawar tidak memiliki perbedaan dimana F _hitung< F _tabel  (0.231 < 0.798). Pemberian pakan dengan perlakuan A (Cacing tanah), menunjukan pertumbuhan berat mutlak tertinggi dengan nilai (5.7 gr ± 0.001 gr), dan pertumbuhan panjang mutlak tertinggi didapat pada perlakuan A (Cacing tanah), dengan nilai (3.03 cm ± 0.96 cm). Pertumbuhan panjang mutlak lobster air tawar berbeda nyata dimana F _hitung > F _tabel  (7.9 cm > 4.26 cm).

Kata Kunci : Lobster Air Tawar, Pakan, Pertumbuhan

ABSTRACT

          The purpose of this research is to discover the effect of different type of feedings towards the longevity and growth of freshwater lobster (Cherax quadricarinatus). This research is carried in the fish nursery pond in Cubadak Mentawai village, at Pariaman City, between the 10th of November 2015 to the 10th of January 2016. 180 freshwater lobster larvae (Cherax quadricarinatus) with size length of 3-4cm and weight of 0.08 gr/larvae. Larvae is placed in a cube shaped net. There are a total of 12 cubes of a size 50 x 30 x 40cm with 30cm of water volume. Feeding given to the tested larvae are treatment A: earth worms, treatment B: potatoes and treatment C: pelet. Method used in this research is experimental method. Design used in this research is (RAL) Complete Random Design with 3 treatments and 4 repeats. Result of research shows that there is no significant difference in the longevity of freshwater lobsters where F _hit<  F _tab (0.231 <  4.26). Feeding with treatment A (earthworms) shows the highest definite growth with a score of (5.7 gr + 0.001 gr). Highest definite length growth is found in treatment A (earthworms) with a score of (3.03 cm + 0.96 cm). The definite length growth of freshwater lobster differs clearly where F _hit<  F _tab (7.9 cm > 4.26 cm)

Keywords :Freshwater Lobster, Feedings, Growth