Fig. 3From: Provision of straw by a foraging tower –effect on tail biting in weaners and fattening pigs a: Bite marks (score 1) and tail wounds (score ≥ 2) related to the ammonia content (NH3) in the units of batch 2 (w = week). b: Bite marks (score 1) and tail wounds (score ≥ 2) related to the average temperature and the highest day/night temperature range per week in the unit of batch 2 (w = week)Back to article page