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. Author manuscript; available in PMC: 2010 Dec 1.
Published in final edited form as: Comp Biochem Physiol A Mol Integr Physiol. 2009 Aug 16;154(4):429–436. doi: 10.1016/j.cbpa.2009.06.028

Fig. 4.

Fig. 4

Levels (mg/cm of aorta length) of cellular protein (A), collagen (B), elastin (C), and elastin/collagen ratio (D) in smooth muscle layers of abdominal aortae of male and female chickens from different age groups: chicks (male, n = 8; female, n = 11), cockerels/pullets (Ck/Pull) (male, n = 9; female, n = 9), young (male, n = 9; female, n = 5), adults (male, n = 11; female, n = 7). Medial layers were manually dissected under microscope. **Values (means ± SE) of males and females differ significantly (P < 0.01). a, b, c in closed columns indicate that values are significantly different from each other among males of different ages (P < 0.05, ANOVA). x, y, z in open columns: values are significantly different from each other among females of different ages (P < 0.05, ANOVA). Ck/Pull, cockerels/pullets.