Cognitive Enrichment in Piglet Rearing: An Approach to Enhance Animal Welfare and to Reduce Aggressive Behaviour

Table 1

Percentage of piglets around the feeder after 2, 5, 15, 30, 45, and 60 seconds of the activation of the feeder on different training days. Different letters indicate significant differences (𝑃<0.05).

Reaction in:	2 sec (%)	5 sec (%)	15 sec (%)	30 sec (%)	45 sec (%)	60 sec (%)
Day 1	26.05	34.68^a	43.40^a	36.69^a	43.24^a	42.06
Day 2	18.76^a	30.38^a	44.23^a	48.12	47.10	44.81
Day 3	28.58	54.83^b	67.63^b	69.19^b	61.87^b	52.24
Day 4	33.89	50.45	56.54	56.34	52.21	43.09
Day 5	22.47^a	45.32^b	52.82	50.26	45.80	39.82
Day 6	31.80	55.92	56.99	54.54	50.34	43.76
Day 7	28.10	55.58	61.38^b	59.70	58.59	48.78
Day 8	38.24^b	63.17^b	63.25^b	59.20^b	51.50	43.80
All days (means)	29.56	51.21	57.00	55.17	51.51	44.44