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Table 3 Effect of space allowance × mixing on productive performance and body lesion counts in Exp21

From: Effect of space allowance and mixing on growth performance and body lesions of grower-finisher pigs in pens with a single wet-dry feeder

 

Space Allowance 2

 

0.96 m2/pig

0.78 m2/pig

P-value

Trait

Mixed

Non-Mixed

Mixed

Non-Mixed

SEM

Mixing

Space Allowance

Interaction

BW, kg, 21 wk

102.1 b

106.4 ab

101.7 b

108.2 a

0.95

<  0.001

0.472

<  0.001

ADG, g

983.0

1034.1

955.4

1052.3

21.82

0.004

0.836

0.309

ADFI, g

2150.3

2222.3

2125.6

2257.1

32.57

0.007

0.880

0.374

FCR

2.18

2.12

2.19

2.11

0.04

0.079

0.974

0.692

Body lesions 3, 12 wk

 Anterior

4.2

4.0

6.8

7.3

0.70

0.960

<  0.001

0.622

 Mid

2.2

2.3

2.7

2.5

0.47

0.903

0.457

0.777

 Posterior

1.0

0.7

1.1

1.1

0.28

0.590

0.371

0.505

 Total

7.6

7.0

10.8

10.9

1.23

0.828

0.004

0.748

Body lesions, 16 wk

 Anterior

3.8

3.7

5.6

5.3

0.71

0.801

0.019

0.894

 Mid

1.8

3.0

3.6

3.4

0.56

0.210

0.038

0.119

 Posterior

2.2

1.9

2.9

2.8

0.36

0.600

0.021

0.641

 Total

7.7

8.6

12.0

11.4

1.51

0.886

0.018

0.598

Body lesions, 21 wk

 Anterior

2.6

2.0

4.2

4.0

0.59

0.380

0.002

0.497

 Mid

0.8

1.0

2.3

1.8

0.39

0.983

0.003

0.410

 Posterior

0.6

1.0

2.0

1.8

0.36

0.569

0.001

0.316

 Total

4.1

3.9

8.6

7.5

1.21

0.622

< 0.001

0.834

  1. 1 Body weight (BW), average daily gain (ADG), average daily feed intake (ADFI), feed conversion ratio (FCR) and body lesion counts (Least square means ± Standard error mean [SEM]) from 230 grower-finisher pigs in 20 pens grouped by space allowance × mixing from 11 up to 21 weeks of age, when the first group of pigs reached 110 kg of BW and were sent to slaughter
  2. 2 0.96 m2/pig = 10 pigs/pen; 0.78 m2/pig = 13 pigs/pen
  3. 3 Mean of the total number of body lesions counted at anterior, mid, posterior and total body regions on both sides of the body
  4. a,b Within rows, significant differences between groups (P < 0.05)