Evaluation of dietary fucoidan supplementation effects on growth performance and vibriosis resistance of Penaeus monodon postlarvae

• Published in: Aquaculture Science Vol. 57; no. 2; pp. 167 - 174
• Main Authors: Traifalgar, R.F.(Kagoshima Univ. (Japan)), Serrano, A.E, Corre, V, Kira, H, Tung, H.T, Michael, F.R, Kader, Md.A, Laining, A, Yokoyama, S, Ishikawa, M, Koshio, S
• Format: Journal Article
• Language: English
• Published: Japanese Society for Aquaculture Science 01.06.2009
• Subjects: COMPLEMENT ALIMENTAIRE; CRECIMIENTO; CROISSANCE; DISEASE RESISTANCE; ESTADOS POSTLARVALES; Fucoidan; GROWTH; Growth performance; PENAEUS MONODON; PHAEOPHYCEAE; POLISACARIDOS; POLYHOLOSIDE; POLYSACCHARIDES; POSTLARVAL STAGES; RESISTANCE AUX MALADIES; RESISTENCIA A LA ENFERMEDAD; STADE POSTLARVAIRE; SUPLEMENTOS; SUPPLEMENTS; Vibrio harveyi; VIBRIOSE; VIBRIOSIS
• ISSN: 0371-4217; 2185-0194
• DOI: 10.11233/aquaculturesci.57.167

Two separate feeding trials were conducted with Penaeus monodon postlarvae to evaluate the effects of dietary Undaria pinnatifida fucoidan supplementation on growth performance and resistance to Vibrio harveyi infection. A semi-purified basal diet formulated to contain 49.65% protein, 9.21% lipid and 6.12% ash were incorporated with graded levels of fucoidan (0, 100, 500, 1000, 2000 mg/kg diet) and used in the feeding trials. In the first trial, each of the formulated diets was fed to triplicate groups of shrimp postlarvae (PL-15; mean weight 21.7+-0.59 mg) for 30 days. Results of the growth trial showed a significant enhancement of weight gain, specific growth rate, protein efficiency ratio and a lower feed conversion ratio in shrimp fed the 500-2000 mg fucoidan/kg diet in comparison to that of the shrimp fed the 100 mg fucoidan/kg diet and the control diet. Another 30 day feeding trial was conducted to evaluate the effects of fucoidan supplementation on the resistance of postlarvae to V. harveyi infection. Results indicated that dietary fucoidan supplementation had a significant influence on survival following V. harveyi infection. Shrimp fed the 500-2000 mg fucoidan/kg diet had a significantly higher survival than the shrimp fed the control diet. These results suggest that supplementation of Undaria pinnatifida fucoidan at a dose of 500-2000 mg/kg diet can be used to enhance growth performance and prevent or reduce mortalities in P. monodon postlarvae due to V. harveyi infection.