. 2021 Jan 22;100(4):101016. doi: 10.1016/j.psj.2021.01.038

Table 4.

Broiler feeding behaviors at different feeder spaces and bird ages.

Treatment	DTSF (min·bird⁻¹·day⁻¹)	DNFV (times·bird⁻¹·d⁻¹)	DFV (min·visit⁻¹)	FUR (%)
Feeder space¹
2.3FSO	73.7^b	73^b	1.1	21.5^b
2.3FST	113.2^a	122^a	0.9	31.1^a
4.6FST	119.1^a	114^a	1.5	18.0^c
6.9FST	119.6^a	118^a	1.0	11.5^d
SEM²	4.7	3	0.3	0.01
Bird age
Week 5	144.4^a	125^a	1.2	27.6^a
Week 6	128.7^b	119^a	1.6	24.5^b
Week 7	80.0^c	97^b	0.8	15.2^c
Week 8	72.4^c	85^c	0.8	14.1^c
SEM³	4.6	3	0.4	0.01
P value
Feeder space	<0.01	<0.01	0.50	<0.01
Bird age	<0.01	<0.01	0.15	<0.01
Feeder space × bird age	0.15	0.78	0.55	0.73

^a,b,c,dValues within the same column that lack a common superscript differ significantly (P ≤ 0.05).

Abbreviations: DTSF, daily time spent at feeder; DNFV, daily number of feeder visits; DFV, duration per feeder visit; and FUR, feeder utilization rate.

2.3FSO = 2.3 cm/bird feeder space with one fully open feeder shared by 45 birds in a pen; 2.3FST = 2.3 cm/bird feeder space with 3 partially blocked feeders shared by 45 birds in a pen; 4.6FST = 4.6 cm/bird feeder space with 3 partially blocked feeders shared by 45 birds in a pen; and 6.9FST = 6.9 cm/bird feeder space with 3 fully open feeders shared by 45 birds in a pen.

Standard error for the effect of feeder space (n = 16 pens).

Standard error for the effect of bird age (n = 16 pens).