Two- or Four-Hour Lying Deprivation on the Behavior of Lactating Dairy Cows

Plan of experimental pens for pairs of cows in the control, 2-h, and 4-h lying-deprivation treatments. Circles indicate water bowls available to lying-deprived cows during deprivation.

Mean time (min/h) spent feeding for cows in the control group (♢) and those deprived of the opportunity to lie down for 2h (■) or 4h (▴). Bars indicate the standard errors of the difference between any 2 means.

Mean time (min/h) spent standing without ruminating for cows in the control group (♢) and those deprived of the opportunity to lie down for 2h (■) or 4h (▴). Bars indicate the standard errors of the difference between any 2 means.

Mean time (min/h) spent lying without ruminating for cows in the control group (♢) and those deprived of the opportunity to lie down for 2h (■) or 4h (▴). Bars indicate the standard errors of the difference between any 2 means.