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¹ Department of Aquaculture, Faculty of Fisheries, Kasetsart University, Thailand
² Faculty of Verterinary Medicine, Kasetsart University, Kamphaeng Saen, Nakhon Pathom, Thailand
³ Faculty of Agricultural Technology, Valaya Alongkorn Rajabhat University Under the Royal Patronage, Pathum Thani, Thailand DOI : 10.4194/AQUAST2619 Viewed : 15 - Downloaded : 19 The effects of resin acids oil with carrier (RAC) in powder form, Progres®, supplementation on Litopenaeus vannamei growth performance, immune response, and disease resistance to severe Vibriosis, Vibrio parahaemolyticus AHPND were assessed. A completely randomized design (CRD) with three treatments of RAC supplemented—control 0, RAC350, and RAC700 ppm was applied to shrimp for 2 weeks. Juvenile white shrimp initial weights of 1.82±0.03 g., were created a random stocked 30 shrimp to each aquarium of 240 L with 15 ppt. saline water 120 L with total 810 shrimp. After 2 week feeding trial, shrimp were applied oral administration. The study found that short-term dietary RAC under normal condition, shrimp growth performance and survival rate were in the same range (P>0.05). The immunity of shrimp fed both treatments in term of lysozyme activity and superoxide dismutase activity was significantly increased (P<0.05). After stress condition, shrimp innate immunity significantly improved (P<0.05), and exhibited disease resistance against, Vibriosis count in both treatments decreased (P<0.05). The survival rate after challenge was low in Control and significantly high in both treatments (P<0.05). There were 66.67+5.77, 86.67+5.77 and 80.00+10.00%, respectively. Therefore, short-term dietary resin acid effects on improving immune response and resistance to Vibrio under stress conditions. Keywords : Natural resin acids Short-term feeding White leg shrimp Litopenaeus vannamei Growth performance Immunity Oral administration Vibriosis Vibrio parahaemolyticus