The Company of Biologists

Table 1.

Hens' responses to 60 s playback of video sequences

	Empty cage	Video only	Audio only	Multimodal
Food search duration (s)	5.10±4.42^c	10.20±7.87^b	13.56±6.67^a	10.38±7.63^a,b
Latency to food search (s)	30.07±22.02^c	23.10±20.10^b,c	9.20±7.6^a	16.07±9.97^a,b
Inspection (s)	6.02±4.01^a	15.01±7.11^b	7.53±4.76^a	14.78±5.64^b

	Empty cage	Video only	Audio only	Multimodal
Food search duration (s)	5.10±4.42^c	10.20±7.87^b	13.56±6.67^a	10.38±7.63^a,b
Latency to food search (s)	30.07±22.02^c	23.10±20.10^b,c	9.20±7.6^a	16.07±9.97^a,b
Inspection (s)	6.02±4.01^a	15.01±7.11^b	7.53±4.76^a	14.78±5.64^b

Values are means ± s.d.

Different letters across a row indicate significant differences at Tukey's HSD 0.05 adjusted level