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Table 3 Histomorphometric measurements representing the mean ± standard error of thickness of muscle bundles of pectoral and supracoracoideus muscles of both cattle egret and domestic duck and area % of connective tissue of pectoral and supracoracoideus muscles of both cattle egret and duck

From: Morphological, radiographic, three-dimensional computed tomographic, and histological features of the primary upstroke and downstroke muscles and bones in the domestic duck (Anas platyrhynchos domesticus) and the cattle egret (Bubulcus ibis, Linnaeus, 1758), reflecting the evolutionary transition towards the irreversible flightlessness

Parameters

Cattle egret

Domestic duck

p-value

Thickness of muscle bundles (um) of the pectoral muscle

329.8 ± 9.33

242.0 ± 12.33

 < 0.0001

Thickness of muscle bundles (um) of supracoracoideus muscle

195.8 ± 12.41

162.5 ± 12.8

 = 0.0013

Area % of connective tissue in the pectoral muscle

1.90 ± 0.26

0.67 ± 0.12

 < 0.0001

Area % of connective tissue in supracoracoideus muscle

0.5 ± 0.10

0.19 ± 0.10

 = 0.0005

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BMC Veterinary Research

ISSN: 1746-6148

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