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Table 1 Descriptive statistics of general management of 58 Irish farrow-to-finish farms participating in a survey about tail biting in their growing pigs

From: Irish pig farmer’s perceptions and experiences of tail and ear biting

Question Answer Range
Most common maternal line Landrace/Large white 60%
Duroc 7%
Hampshire 3%
Unknown* 30%
Most common meat line Danbred 29%
Duroc 17%
Maxgro 17%
Landrace/Large white 12%
Hampshire 5%
Unknown* 20%
Weaning age (days) 28 (±1.8) 21–35
Average 1st stage (approximately 0–47 days from weaning) weaners per pen 42 (±25) 12–134
Average 2nd stage (approximately 47–81 days from weaning) weaners per pen 32 (±17) 12–100
Average finishers (approximately 81–159 days from weaning) per pen 26 (±11) 8–60
Percentage kept in mixed sex groups 69%  
Percentage kept in same group from weaning 34%  
Percentage mixed at all stages 66%  
Most common ventilation in first stage weaners Natural 14%
Mechanical 86%
Most common ventilation in second stage weaners Natural 13%
Mechanical 87%
Most common ventilation in finishers Natural 23%
Mechanical 77%
  1. *Unknown refers to cases where the breed was unknown by the producer. In some cases, the genetics company was referred to. When means are presented, they are (±Stdev)