Table 2.

Time allocation (min) in the feed alley and drainage bed with sand or wood shavings at different depths (means ± SE) in Exp2

Location	All standing	Standing only	Lying	Defecation
Alley	209.7 ± 9.6A	72.0 ± 9.0A	–	0.4 ± 0.1A
S-10b	120.4 ± 14.6aB	120.4 ± 14.6aB	146.8 ± 26.4A	0.5 ± 0.0AB
WS-15	211.8 ± 13.5A	211.8 ± 13.5C	343.5 ± 28.9B	0.8 ± 0.1BC
WS-20	155.9 ± 12.8bB	155.9 ± 12.8bB	251.9 ± 30.7C	0.6 ± 0. 1BC

^a,b Means within variable having different superscript letters differ (P < 0.05); ^{A, B, C} Means within variable having different superscript letters differ (P < 0.01)