Pustaka Ilmiah Universitas Padjadjaran

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Pengaruh Substitusi Tepung Skeletoma costatum Dalam Pakan Buatan Terhadap Kelangsungan Hidup dan Pertumbuhan Udang Vannamei (Litopenaeus vannamei) – The Effect Of Skeletonema Costatum Flour Substitution In Artificial Feed On Survival Rate And Ralative Growth Rate Of Vannamei Shrimp (Litopenaeus Vannamei)

Penelitian ini bertujuan untuk mengetahui pengaruh substitusi tepung Skeletonema pada pakan buatan terhadap kelangsungan hidup, efisiensi pemberian pakan dan pertumbuhan udang vannamei (Litopenaeus vannamei). Juvenil udang vannamei yang digunakan berukuran 1 ± 0,1 g yang diperoleh dari Balai Besar Pengembangan Budidaya Air Payau, Jepara. Padat penebaran udang adalah 25 ekor/250 L. Penelitian ini menggunakan rancangan acak lengkap dengan lima perlakuan dan tiga ulangan. Pakan yang digunakan adalah pakan buatan yang disubstitusi tepung skeletonema 0%, 25%, 50%, 75%, dan 100%. Hasil penelitian menunjukkan bahwa substitusi tepung Skeletonema berpengaruh sangat nyata terhadap efisiensi pemberian pakan dan pertumbuhan, tetapi tidak berpengaruh nyata terhadap kelangsungan hidup udang vannamei. Substitusi tepung Skeletonema dalam pakan buatan mengakibatkan efisiensi pemberian pakan lebih rendah dan pertumbuhan udang vannamei lebih lambat dibandingkan dengan tanpa substitusi. Nilai tertinggi diperoleh perlakuan substitusi tepung skeletonema 75% dengan kelangsungan hidup, efisiensi pemberian pakan dan laju pertumbuhan sebesar 98,67, 30.97 % dan 2,92%.

The purpose of this research was to study the effects of the substitution of Skeletonema powder in artificial feed on the survival rate, efficiency of feeding and growth of vannamei shrimps (Litopenaeus Vannamei). The juvenile used in the research weighed 1 ± 0.1 g, obtained from The Center for Brackishwater Aquaculture Development, Jepara. The shrimp were stocked at density 25 ind/250L. This research used completely randomized design with five treatments and three replications. The feed used was the artificial feed substituted by Skeletonema powder in sequence of 0%, 25%, 50%, 75%, and 100%. The result showed that the substitution of Skeletonema powder had significantly affected the efficiency of feeding and the growth, but unsignified towards the survival rate of vannamei shrimp. The substitution of Skeletonema powder in artificial feed caused lower efficiency of feeding and slower the growth of vannamei shrimp compared to the growth to those which fed with the no substitution. The highest rate obtained from the treatment of Skeletonema powder was 75% with survival rate, efficiency of feeding and growth rate as followed 98.67%, 30.97% and 2.92%.