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Table 3 Effect of concentrate supplementation for 26 days pre-weaning on total leukocyte and differential populations in abruptly weaned and housed beef calves

From: Effect of pre-weaning concentrate supplementation on peripheral distribution of leukocytes, functional activity of neutrophils, acute phase protein and behavioural responses of abruptly weaned and housed beef calves

   Days post-weaning   Pvalues1
Cell type,
×103cells/μL
  0 1 2 3 7 14 Pooled s.e.m. T S T×S
Total leukocytes CS 10.5 11.3 10.4 10.1 10.0 9.3 0.52 NS NS NS
  NCS 10.3 10.7 9.6 9.9 9.8 10.0     
Neutrophils CS 2.5a 4.2b 3.7b 2.5a 2.8a 2.3a 0.31 NS *** NS
  NCS 2.6a 4.8b 3.9c 2.7a 2.7a 2.7a     
Lymphocytes CS 7.3a 5.2b 5.3b 6.6a 6.7a 6.6a 0.33 NS ** NS
  NCS 6.7a 4.9b 5.0b 6.0a 7.1a 6.4a     
Monocytes CS 0.68a 0.61ab 0.58ab 0.61ab 0.63ab 0.37b 0.063 NS ** NS
  NCS 0.73 0.69 0.70 0.73 0.82 0.51     
Eosinophils CS 0.21 0.26 0.21 0.17 0.10 0.16 0.048 NS NS NS
  NCS 0.22 0.20 0.24 0.26 0.15 0.19     
Basophils CS 0.09 0.11 0.12 0.11 0.08 0.13 0.029 NS NS NS
  NCS 0.11 0.10 0.09 0.09 0.08 0.10     
  1. T = treatment, S = sampling time, T × S = treatment × sampling time interaction.
  2. CS = concentrate supplement prior to abrupt weaning (n = 10). NCS = no concentrate supplement prior to abrupt weaning (n = 10).
  3. 1Levels of significance: NS = P > 0.05, ** = P < 0.01, *** P < 0.001. a, b, cWithin a row, least squares means without a common superscript differ (P <0.05).