Research Article

Effects of Various Processing Methods on the Ultrastructure of Tendon Collagen Fibrils from Qinchuan Beef Cattle Observed with Atomic Force Microscopy

Figure 3

DSL (a) and roughness (b) of collagen fibrils under different ultrasonic frequencies and times. a, b, c, and d values in the row and column; entries with the same superscript are not significantly different ().
(a)
(b)