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Table 6 Correlation coefficients for select variables related to litter size by sow group

From: Effect of spray-dried porcine plasma in peripartum sow feed on subsequent litter size

 

First parturition

 

Second parturition

 

Total borna

  

Total bornb

Variable

Groupc

r

P =

n

Variable

Group

r

P =

n

Stillborna, n

All

0.3698

< 0.0001

452

Stillbornb, n

All

0.1746

0.0003

426

M

0.4577

< 0.0001

157

 

M

0.2739

0.0007

151

Y

0.2746

< 0.0001

295

 

Y

0.1329

0.0276

275

Dietd

0

0.3020

0.0031

94

Dietd

0

−0.0296

0.7857

87

0.5

0.3212

0.0006

111

 

0.5

0.2306

0.0191

103

2.5

0.1881

0.0758

90

 

2.5

0.0842

0.4437

85

Sow agea

Y

0.0909

0.1216

295

Sow ageb

Y

0.0914

0.1306

275

Dietd

0

0.1755

0.0906

94

Dietd

0

0.0893

0.4107

87

0.5

−0.0013

0.9889

111

 

0.5

0.0572

0.5658

103

2.5

0.1150

0.2806

90

 

2.5

0.1512

0.1673

85

Total bornb

All

−0.0356

0.4635

426

     

M

−0.0020

0.9808

151

     

Y

−0.0129

0.8314

275

     

Dietd

0

0.0194

0.8588

87

     

0.5

−0.1419

0.1527

103

     

2.5

0.1589

0.1462

85

     
  1. a Designates variable of the first parturition
  2. b Designates variable of the second parturition
  3. c Values are Pearson correlation (r) coefficients, T-test probability (P) and number (n) of sows per groups All (all sows), Y (parity 1 and 2 sows) and M (parity 3 to 8 sows) during initial and next parturition
  4. d Values are r, P, and n by diet containing 0, 0.5 or 2.5% SDPP within the Y group of sows