Table 2 Poisson count model of the effect of musical stimulation on pre-weaning mortality in piglets (n = 419) from sows (n = 35) in a full-cycle commercial system in Antioquia, Colombia.

From: Musical stimulation in lactating sows affects pre-weaning piglet mortality and maternal behavior

Variable

Coefficient

Std. Error

z

P

IC 95%

Breed

1

Ref.

-

-

-

-

4

1.258

0.488

2.58

0.010

0.301–2.215

Parity

1

Ref.

-

-

-

-

3

2.833

1.418

2.00

0.046

0.053–5.613

7

1.967

0.847

2.32

0.020

0.306–3.628

8

1.778

0.666

2.67

0.008

0.473–3.084

Birth Weight

−2.494

1.107

−2.25

0.024

−4.665 – −0.323

Const_

2.571

1.536

1.67

0.094

−0.439–5.582

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