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Table 2 Phenotypic correlations between the total number of joyful movements at 41, 44 and 48 d of age (above the diagonal), the total time expressing joyful movements at 41, 44 and 48 d of age (below the diagonal), and body weight at 41 d of age (BW)

From: A note on the consistency of a behavioral play marker in piglets

d of age 41 44 48 BW
41 . 0.27 0.03 0.18
44 0.11 . 0.47** 0.06
48 0.19 0.43* . −0.14
BW 0.10 0.05 −0.22 .
  1. * P < 0.05.
  2. ** P < 0.01.