Peningkatan Imunitas Udang Vaname Litopenaeus vannamei dengan Penambahan Ulva lactuca Dosis Berbeda pada Pakan

Abstract

Peningkatan produksi udang dapat berdampak pada penurunan kualitas lingkungan dan timbulnya serangan penyakit salah satunya vibriosis yang menjadi kendala bagi para pembudidaya. Kegiatan proyek akhir ini mengambil tema problem solving yang bertujuan untuk menguji potensi Ulva lactuca dengan dosis berbeda sebagai imunostimulan dalam meningkatkan imunitas udang vaname. Penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 3 ulangan. Perlakuan yang digunakan yaitu Kontrol (0 g kg-1 pakan), P1 (1,5 g kg 1pakan), P2 (3 g kg-1 pakan), dan P3 (6 g kg-1 pakan). Udang uji diberi pakan perlakuan selama 7 hari pemeliharaan dan 12 hari uji tantang secara at satiation dengan feeding rate 5,3%. Hasil penelitian menunjukkan perlakuan P3 secara signifikan mampu meningkatkan imunitas udang vaname dibandingkan dengan kontrol. Pemberian perlakuan P3 meningkatkan nilai tingkat kelangsungan hidup, total haemocyte count (THC), differential haemocyte count (DHC), dan aktivitas fagositosis serta menurunkan nilai total vibrio count (TVC) dan total bacterial count (TBC)

Increased shrimp production can have an impact on reducing environmental quality and the emergence of disease attacks, one of which is vibriosis which is an obstacle for farmers. This final project activity takes the theme of problem solving which aims to test the potential of Ulva lactuca with different doses as an immunostimulant in increasing the immunity of vaname shrimp. The study used a completely randomized design (CRD) with 4 treatments and 3 replicates. The treatments used were Control (0 g kg-1 feed), P1 (1.5 g kg-1 feed), P2 (3 g kg-1 feed), and P3 (6 g kg-1 feed). The test shrimp were fed with the treatments for 7 days of maintenance and 12 days of challenge test by at satiation with a feeding rate of 5.3%. The results showed that P3 treatment was significantly able to increase the immunity of vaname shrimp compared to the control. P3 treatment increased the value of survival rate, total haemocyte count (THC), differential haemocyte count (DHC), and phagocytosis activity and decreased the value of total vibrio count (TVC) and total bacterial count (TBC)