Fig. 1

Dice cluster analysis of the DGGE gel profile of lean (L, n = 6) and obese (O, n = 4) dogs fed low protein diet (LP) and high protein diet (HP) in a crossover design. DGGE: denaturing gradient gel electrophoresis; LP: low protein diet; HP: high protein diet; L: lean dog; O: obese dog (Additional file 1)