The objective of this study was to document the immunological effects of growing shrimp in biofloc
systems. The experiment consisted of four types of biofloc systems in which bioflocs were produced by
daily supplementation of four different carbon sources, i.e. molasses, tapioca, tapioca-by-product, and
rice bran, at an estimated C/N ratio of 15 and a control system without any organic carbon addition.