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Table 6 Results of the generalized linear mixed-effects model for the fattening period with dichotomized pen-week (at least one pig with score ≥1 vs. no pig with score ≥1) as outcome variable and pen nested in batch as random effect (random intercept): results of the models for each individual explanatory variable, the full model and the final model

From: Provision of straw by a foraging tower –effect on tail biting in weaners and fattening pigs

Fattening Individual models Full model Final modela
Fixed effect Estimate P-value Estimate P-value Estimate P-value
Week 0.062 0.429 −0.091 0.037 −0.067 0.087
SG (CG = baseline) −0.380 0.325 −0.390 0.313   
day/night temperature range −0.119 0.027 −0.106 0.074 −0.119 0.027
average temperature    −0.108 0.259   
ammonia concentration 0.018 0.174 0.013 0.405   
air velocity −0.522 0.729 1.162 0.479   
  1. arandom effect batch:pen (Intercept): variance 1.301