Table 2

Sperm kinematic parameter measurements* (average ± SD) captured at 50 frames/second

Parameter

Measurement


Motility (%)

7.3 ± 6.7

Concentration (×106/ml)

43.0 ± 45.2

VCL (μm/s)

35.5 ± 6.7

VSL (μm/s)

16.3 ± 6.3

VAP (μm/s)

26.1 ± 5.9

LIN (%)

44.4 ± 9.5

STR (%)

60.6 ± 10.8

WOB (%)

73.0 ± 4.4

ALH (μm)

0.5 ± 0.4

BCF (Hz)

4.9 ± 5.3


*Data are combined for breeders, subordinates and dispersers.

VCL = curvilinear velocity, VSL = straight-line velocity, VAP = average path velocity, LIN = linearity, STR = straightness, WOB = wobble, ALH = amplitude of lateral head displacement, BCF = beat cross frequency.

van der Horst et al. BMC Evolutionary Biology 2011 11:351   doi:10.1186/1471-2148-11-351

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