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. 2012 Sep 18;13:488. doi: 10.1186/1471-2164-13-488

Table 2.

Descriptive statistics analysis and estimates of variance components of immune traits in piglets

Trait Test Day Mean Standard Deviation CV(%) Variance component of genetic effect Variance component of litter effect
CD4-CD8- T %
 20
 36.2a
 25.98
 71.76
 32.65
 33.28
 
 35
 35.7 a
 10.77
 30.18
  
  
CD4+CD8+ T %
 20
 8.11 a
 3.70
 45.63
 3.43
 3.54
 
 35
 11.23b
 5.06
 45.07
  
  
CD4+CD8- T %
 20
 19.87 a
 7.76
 39.08
 2.90
 8.26
 
 35
 16.38b
 7.28
 44.42
  
  
CD4-CD8+ T %
 20
 36.8 a
 13.57
 36.88
 6.88
 35.45
 
 35
 36.77 a
 11.53
 31.37
  
  
CD4+ T %
 20
 27.92 a
 8.64
 30.94
 20.14
 10.35
 
 35
 27.64 a
 8.83
 31.96
  
  
CD8+ T %
 20
 44.93 a
 14.14
 31.47
 2.44
 48.44
 
 35
 47.96b
 12.57
 26.22
  
  
CD4+ / CD8+
 20
 0.72 a
 0.39
 54.2
 0.74E-02
 0.81E-02
  35 0.63b 0.29 46.71    

Note: In the third column, different letters in superscript denote significant difference between ages 20 and 35 for the same trait.