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Table 4 Mortality by vitality score (VS) and intrauterine growth retardation (IUGR) in LW (low weight) and NW (normal weight) newborn piglets dying or surviving until day 5 of age

From: Killing underweighted low viable newborn piglets: Which health parameters are appropriate to make a decision?

Category LW NW
Number of piglets per category Percentage of dead piglets per category Number of piglets per category Percentage of dead piglets per category
Vitality score (VS)
 0 146 16.4 180 7.9
 1 127 46.5 9 33.3
 2 29 93.1 0 0
 3 26 100 0 0
Intrauterine growth retardation (IUGR)
 0 124 22.6 187 4.8
 1 133 36.8 3 33.3
 2 71 83.1 1 100