Impact of feed, light and access to manipulable material on tail biting in pigs with intact tails

Table 1 Tail injuries registered at slaughter (presumably caused by tail biting) and productivity in the four buildings during the comparison period (2017–2020)

Building	I	II	III	IV
Slaughtered (n)	4540	4208	4042	4247
With tail injury (n)	299	368	402	503
With tail injury (%)	6.6^ABC	8.7^AD	9.9^BE	11.8^CDE
DWG (fattening period) (g/day)	1024 ± 90	1019 ± 74	1030 ± 145	1015 ± 75
Meat% at slaughter (%)	58.6 ± 1.1	58.6 ± 1.3	58.7 ± 1.4	58.7 ± 1.1

Pigs entered the fattening facilities at a mean weight of 26.3 kg and were slaughtered at a mean weight of around 130 kg
Within lines, columns with identical letters differ significantly [P < 0.01 (A and E); P < 0.001 (B, C and D)]

ISSN: 1751-0147