Figure 4: Digital images of blood parrot from each of the seven diet treatmentsafter 56 days feeding: (Before feeding) original color of fish before feedingpigments (also showing sampling areas for color measurements (1) whereall measurements were taken on the same side for all of the fish used in theexperiment (side shown in image); (PO) Paprika oleoresin; (HP) H. pluvialis;(PR) Phaffia rhodozyma; (AS) astaxanthin; (CA) β-carotene; (POL) paprikaoleoresin + lutein; (The control) the control without any pigments.