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Table 1 Number of observations, means, standard deviations (SD) and coefficients of variation (CV) for piglet and sow performance traits

From: Evaluation of direct and maternal responses in reproduction traits based on different selection strategies for postnatal piglet survival in a selection experiment

Trait

Number of observations

Mean

SD

CV

Individual piglet birth weight (kg)

22,107

1.600

0.401

0.25

Piglet survival rate per litter at birth (%)

1765

96.65

6.97

0.07

Piglet survival rate per litter during the nursing period (%)

1765

89.03

11.96

0.13

Average piglet birth weight per litter (kg)

1765

1.636

0.272

0.17

SD of piglet birth weight within litter (kg)

1765

0.312

0.096

0.31

Total number piglets born

1765

12.74

3.19

0.25

Number piglets born alive

1765

12.28

3.08

0.25