Table 4 Eigenvectors of principal components (PCs)* for the sperm kinematic for bull.

From: Exploration of semen quality analyzed by casa-mot systems of brahman bulls infected with BLV and BHV-1

Principal component*

PC1

PC2

LIN

0.99

 

STR

0.80

 

WOB

0.77

 

VSL

0.75

0.62

VCL

 

0.99

ALH

 

0.89

VAP

 

0.87

Var Exp

43.03

41.48

  1. VCL curvilinear velocity, VSL straight-line velocity. VAP average path velocity, LIN linearity of forward progression, STR straightness, WOB wobble, ALH amplitude of lateral head displacement.
  2. PC1 principal component designated “linearity”, PC2 principal component designated “velocity”. Var Exp variance explained in each PC (%). Total variance explained = 84.51%.
  3. *Expresses the more important variables in each PC. Only eigenvectors > 0.6 are presented.
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