Pengaruh Dosis Kapur CaO dan MgO pada Pakan terhadap Pertumbuhan dan Kualitas Air Budidaya Udang Vaname (Litopenaeus vannamei, Boone 1931)

HANIF ARFIAN, Dr. Ir. Bambang Triyatmo, M.P.

2021 | Skripsi | S1 AKUAKULTUR

Penelitian ini bertujuan untuk mengetahui pengaruh dan dosis terbaik pemberian kapur CaO dan MgO pada pakan terhadap pertumbuhan dan kualitas air budidaya udang vaname (Litopenaus vannamei, Boone 1931). Penelitian ini dimulai pada bulan Maret 2021 dan berakhir pada bulan Juli 2021. Penelitian dilaksanakan selama 56 hari dan bertempat di Unit Kolam Percobaan Stasiun Penelitian, Departemen Perikanan, Fakultas Pertanian, Universitas Gadjah Mada. Perlakuan pemberian dosis kapur Cao dan MgO (dalam satuan mg dolomit per kilogram pakan udang) diujikan dalam Rancangan Acak Lengkap dengan lima perlakuan dan tiga ulangan. Perlakuan dosis kapur CaO dan MgO masing sampai dengan masing sebesar 0, 1, 2, 3 dan 4 mg dolomitperkg pakan. Udang uji dipelihara dalam akuarium berukuran 75x35x30 cm3 yang berisi air payau sebanyak 50 L dengan kepadatan tebar 25 ekor udang per akuarium. Data yang diperoleh dilakukan analisis varian (Analysis of Varians atau ANOVA) dan jika antar perlakuan terdapat beda nyata dilakukan uji lanjut menggunakan uji Duncans Multiple Range Test (DMRT). Hasil penelitian menunjukkan bahwa pertumbuhan dan sintasan udang vaname tertinggi diperoleh pada dosis kapur CaO dan MgO sebanyak 4 mg dolomitperkg pakan. Pertumbuhan tertinggi untuk berat mutlak sebesar 3,19 g; berat spesifik sebesar 2,49 g; panjang mutlak 5,97 cm; panjang spesifik 2,02 cm; dan sintasan sebesar 92 persen. Nisbah konversi pakan terendah sebesar 1,67 yang diperoleh pada pemberian dosis CaO dan MgO sebanyak 4 mg dolomit per kg pakan. Kualitas air selama pemeliharaan udang vaname untuk suhu berkisar 25,6 sampai dengan 28,8 derajat celcius; pH 7,40 sampai dengan 8,8; salinitas 21,2 sampai dengan 28,4 ppt; kesadahan total 255 sampai dengan 310 mg per L; alkalinitas 120 sampai dengan 140 ppm, O2 terlarut 5,6 sampai dengan 6,5 mgperL; CO2 bebas 18 sampai dengan 40 mg per L; dan NH3 total 0 sampai dengan 0,06 mg per L, termasuk memenuhi syarat untuk budidaya udang vaname.

This study aims to determine the effect and the best dose of CaO and MgO lime in feed on the growth and water quality of pasific white shrimp (Litopenaus vannamei, Boone 1931) culture. This research started in March 2021 and ended in July 2021. The research was carried out for 56 days and took place at the Experimental Pond Unit of the Research Station, Department of Fisheries, Faculty of Agriculture, Gadjah Mada University. Treatment with doses of Cao lime and MgO (in units of mg dolomite per kilogram of shrimp feed) was tested in the experimental design used, namely a completely randomized design with five treatments and three replications. Was tested in a Completely Randomized Design with five treatments and three replications. Treatment doses of CaO and MgO lime were 0, 1, 2, 3 and 4 mg dolomite per kg feed, respectively. The test shrimp were kept in an aquarium measuring 75x35x30 cm3 which contained 50 L of brackish water with a stocking density of 25 shrimp per aquarium. The data obtained was analyzed for variance (Analysis of Variance per ANOVA) and if there was a significant difference between treatments, further tests were carried out using Duncans Multiple Range Test (DMRT). The results showed that the highest growth and survival of white shrimp was obtained at doses of CaO and MgO lime as much as 4 mg dolomite per kg feed. The highest growth for absolute weight was 3,19 g; specific weight of 2,49 g; absolute length 5,97 cm; specific length 2,02 cm; and 92 percent survival rate. The lowest feed conversion ratio of 1,67 was obtained at the dose of CaO and MgO as much as 4 mg dolomite per kg feed. Water quality during rearing vaname shrimp for temperatures ranged from 25,6 to 28,8 celcius degree; pH 7,40 until 8,8; salinity 21,2 until 28,4 ppt; total hardness 255 until 310 mg per L; alkalinity 120 until 140 ppm, dissolved O2 5,6 until 6,5 mg per L; CO2 free 18 until 40 mg per L; and NH3 total 0 until 0,06 mg per L, including the requirements for vaname shrimp culture.

Kata Kunci : kapur CaO dan MgO, pertumbuhan, udang vaname / CaO and MgO lime, growth, pasific white shrimp