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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).
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BMC Veterinary Research

ISSN: 1746-6148

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