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Encapsulation of Probiotics for Aquaculture Applications Seyedehsara Masoomi Dezfooli The presentation aims to describe application of encapsulation technology to aid in overcoming current problems in the aquaculture industry in New Zealand. Probiotics have been used widely to confer health benefits to farmed aquatic animals. However, conventional methods have not been efficient enough to deliver probiotics in high viability, enough dosages and to specific target sites. Previous studies have reported considerable increase in growth and survival rates of different abalone species in the presence of probiotics (Hadi et al., 2014; Macey and Coyne, 2005). Mixing probiotics with animal feed or releasing them in an aquatic environment are inefficient delivery methods since probiotics will not withstand the harsh preparatory and environmental conditions. Moreover, delivering freshly cultured probiotics is a costly and inefficient process. Therefore, the present work aims to develop a controlled-released probiotic delivery system by using encapsulation technology. Three different probiotics isolated from the gut tract of Haliotis iris (Paua) will be used in this study. The probiotics are cultured and then immobilised by encapsulating them into different natural or biocompatible polymers. The encapsulation process is achieved using various techniques including emulsification, spray drying and extrusion. After factorial analysis, the optimum formulation will be selected for a feeding trial before it can be used in aquaculture industries. This presentation will focus on the encapsulation technology and its applications in the New Zealand aquaculture industry. References Hadi, J. A., Gutierrez, N., Alfaro, A. C., & Roberts, R. D. (2014). Use of probiotic bacteria to improve growth and survivability of farmed New Zealand abalone (Haliotis iris). New Zealand Journal of Marine and Freshwater Research, 48(3), 405– 415. Macey, B. M., & Coyne, V. E. (2005). Improved growth rate and disease resistance in farmed Haliotis midae through probiotic treatment. Aquaculture, 245(1), 249–261. 20