Pengaruh Natrium Bikarbonat dan Kalsium Hidroksida terhadap Alkalinitas dan Sintasan Udang Vaname (Penaeus vannamei Boone, 1931)

Chika Rentiana Lestianto, Dr. Ir. Triyanto, M.Si.

2026 | Skripsi | BUDIDAYA PERIKANAN

Penelitian ini dilakukan untuk mengetahui pengaruh pemberian kalsium hidroksida [Ca(OH)2], natrium bikarbonat (NaHCO3), dan Ca(OH)2 + NaHCO3 terhadap alkalinitas dan sintasan udang vaname (P. vannamei Boone, 1931). Penelitian ini dilaksanakan di Kalurahan Jangkaran, Kecamatan Temon, Kabupaten Kulon Progo, pada bulan Desember 2025 sampai dengan Maret 2026. Metode yang digunakan dalam penelitian ini yaitu metode eksperimental Rancangan Acak Lengkap yang terdiri dari empat perlakuan meliputi meliputi P0 (tanpa pemberian Ca(OH)2 & NaHCO3), P1 (pemberian Ca(OH)2 sebanyak 7,4 mg L^-1), P2  (pemberian NaHCO3 sebanyak 8,4 mg L^-1), dan P3 (pemberian Ca(OH)2 sebanyak 3,7 mg L^-1 + NaHCO3 sebanyak 4,2 mg L^-1) dengan masing-masing perlakuan terdapat 3 ulangan. Pemeliharaan udang vaname dilakukan selama 84 hari dengan padat tebar 100 ekor/m². Pemberian pakan dilakukan  pada jam 06.00, 10.00, 14.00, dan 18.00 WIB setiap harinya. Pemberian pakan pada hari ke 1 - 27 diberikan secara blind feeding, sedangkan pada hari ke 28 - 84 diberikan berdasarkan feeding rate sesuai biomassa udang.  Data penelitian dianalisis menggunakan Analysis of Variance pada tingkat kepercayaan 95?n Duncan's Multiple Range Test. Adapun data yang tidak memenuhi syarat analisis statistik parametrik, dilakukan analisis nonparametrik (Kruskal–Wallis) pada tingkat kepercayaan 95%.  Hasil penelitian menunjukkan bahwa perlakuan penambahan NaHCO3, Ca(OH)2, dan kombinasinya meningkatkan alkalinitas air secara nyata dibandingkan perlakuan tanpa pemberian Ca(OH)2 & NaHCO3 (P kurang dari 0,05), namun tidak berpengaruh terhadap sintasan udang vaname (P lebih dari 0,05).

This study was conducted to determine the effect of calcium hydroxide [Ca(OH)2], sodium bicarbonate (NaHCO3), and Ca(OH)2 + NaHCO3 on the alkalinity and survival rate of whiteleg shrimp (P. vannamei Boone, 1931). The research was carried out in Jangkaran Village, Temon Sub-District, Kulon Progo Regency, from December 2025 to March 2026. The method used in this study was an experimental method with a Completely Randomized Design consisting of four treatments, namely P0 (without the addition of Ca(OH)2 and NaHCO3), P1 (the addition of 7.4 mg L^-1 Ca(OH)2), P2 (the

addition of 8.4 mg L^-1 NaHCO3), and P3 (the addition of 3.7 mg L^-1 Ca(OH)2 + 4.2 mg L^-1 NaHCO?), with three replications for each treatment. Whiteleg shrimp were reared for 84 days at a stocking density of 100 shrimp/m². Feeding was carried out daily at 06:00, 10:00, 14:00, and 18:00 WIB. Blind feeding was applied from day 1 to day 27, while from day 28 to day 84 feeding was carried out based on the feeding rate according to

shrimp biomass. The research data were analyzed using Analysis of Variance at a 95% confidence level and Duncan's Multiple Range Test. Data that did not meet the assumptions for parametric statistical analysis were analyzed using the non-parametric Kruskal–Wallis test at a 95% confidence level. The results showed that the addition of NaHCO3, Ca(OH)2, and their combination significantly increased water alkalinity compared with the treatment without the addition of Ca(OH)2 and  NaHCO3 (P less than 0.05), but had no significant effect on the survival rate of whiteleg shrimp (P more than 0.05).

Kata Kunci : alkalinitas, kalsium hidroksida [Ca(OH)2], natrium bikarbonat (NaHCO3), udang vaname, sintasan/alkalinity, calcium hydroxide [Ca(OH)2], sodium bicarbonate (NaHCO3), survival rate, whiteleg shrimp.