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Table 4 Means of pigs weaned per sow over time, following 65 herd vaccinations, compared to baseline

From: Assessment of immediate production impact following attenuated PRRS type 2 virus vaccination in swine breeding herds

Weeks post PRRSv MLV vaccination

Pigs weaned per sow means

Standard Error of the mean

P-value*

Baseline

10.49

0.1338

1

10.74

0.1389

1.000

2

10.50

0.1359

0.5920

3

10.49

0.1358

0.5480

4

10.52

0.1361

0.9046

5

10.81

0.1399

1.000

6

10.64

0.1377

1.000

  1. * = mixed regression model of each group compared to baseline