Differences between gestation-housing systems, floor type during lactation, and lameness status on median (interquartile range) time and latency to lie down
| . | Housing system during gestation . | Floor type during lactation . | Lameness status1 . | |||
|---|---|---|---|---|---|---|
| . | Loose housing . | Gestation stalls . | Slatted steel . | Cast-iron . | Non-lame . | Lame . |
| Day of transfer to farrowing crate (−5 d) | ||||||
| Time to lie down, s | 19.5 (15.0) | 17.0 (20.0) | 18.0 (15.0) | 17.0 (22.0) | 22.0 (19.0) | 15.0 (13.0) |
| Latency to lie down, min | 14.1 (10.7) | 19.4 (20.5) | 15.5 (11.0) | 17.5 (13.4) | 20.5 (18.7)a | 14.1 (10.7)b |
| 24 h after entering farrowing crate (−4 d) | ||||||
| Time to lie down, s | 12.0 (12.0) | 18.0 (15.0) | 15.5 (12.5) | 15.5 (13.5) | 16.0 (13.0) | 15.0 (13.0) |
| Latency to lie down, min | 3.3 (3.38)a | 7.0 (8.8)b | 5.3 (9.1) | 4.4 (5.2) | 5.0 (9.0) | 4.0 (5.3) |
| 10 d postpartum | ||||||
| Time to lie down, s | 11.5 (9.0) | 12.0 (16.0) | 12.5 (8.0) | 10.0 (11.0) | 11.0 (11.0) | 12.0 (9.0) |
| Latency to lie down, min | 5.1 (6.3) | 5.3 (5.0) | 5.7 (7.0) | 4.3 (5.5) | 5.2 (4.7) | 5.0 (7.0) |
| . | Housing system during gestation . | Floor type during lactation . | Lameness status1 . | |||
|---|---|---|---|---|---|---|
| . | Loose housing . | Gestation stalls . | Slatted steel . | Cast-iron . | Non-lame . | Lame . |
| Day of transfer to farrowing crate (−5 d) | ||||||
| Time to lie down, s | 19.5 (15.0) | 17.0 (20.0) | 18.0 (15.0) | 17.0 (22.0) | 22.0 (19.0) | 15.0 (13.0) |
| Latency to lie down, min | 14.1 (10.7) | 19.4 (20.5) | 15.5 (11.0) | 17.5 (13.4) | 20.5 (18.7)a | 14.1 (10.7)b |
| 24 h after entering farrowing crate (−4 d) | ||||||
| Time to lie down, s | 12.0 (12.0) | 18.0 (15.0) | 15.5 (12.5) | 15.5 (13.5) | 16.0 (13.0) | 15.0 (13.0) |
| Latency to lie down, min | 3.3 (3.38)a | 7.0 (8.8)b | 5.3 (9.1) | 4.4 (5.2) | 5.0 (9.0) | 4.0 (5.3) |
| 10 d postpartum | ||||||
| Time to lie down, s | 11.5 (9.0) | 12.0 (16.0) | 12.5 (8.0) | 10.0 (11.0) | 11.0 (11.0) | 12.0 (9.0) |
| Latency to lie down, min | 5.1 (6.3) | 5.3 (5.0) | 5.7 (7.0) | 4.3 (5.5) | 5.2 (4.7) | 5.0 (7.0) |
1Sows were categorized as nonlame (score ≤ 1) or lame (score ≥ 2) based on a 6-point lameness scale (0 = not lame to 5 = severely lame, cannot stand).
a,bWithin a row and main effect, medians lacking common superscript letters differ; P < 0.05.
Differences between gestation-housing systems, floor type during lactation, and lameness status on median (interquartile range) time and latency to lie down
| . | Housing system during gestation . | Floor type during lactation . | Lameness status1 . | |||
|---|---|---|---|---|---|---|
| . | Loose housing . | Gestation stalls . | Slatted steel . | Cast-iron . | Non-lame . | Lame . |
| Day of transfer to farrowing crate (−5 d) | ||||||
| Time to lie down, s | 19.5 (15.0) | 17.0 (20.0) | 18.0 (15.0) | 17.0 (22.0) | 22.0 (19.0) | 15.0 (13.0) |
| Latency to lie down, min | 14.1 (10.7) | 19.4 (20.5) | 15.5 (11.0) | 17.5 (13.4) | 20.5 (18.7)a | 14.1 (10.7)b |
| 24 h after entering farrowing crate (−4 d) | ||||||
| Time to lie down, s | 12.0 (12.0) | 18.0 (15.0) | 15.5 (12.5) | 15.5 (13.5) | 16.0 (13.0) | 15.0 (13.0) |
| Latency to lie down, min | 3.3 (3.38)a | 7.0 (8.8)b | 5.3 (9.1) | 4.4 (5.2) | 5.0 (9.0) | 4.0 (5.3) |
| 10 d postpartum | ||||||
| Time to lie down, s | 11.5 (9.0) | 12.0 (16.0) | 12.5 (8.0) | 10.0 (11.0) | 11.0 (11.0) | 12.0 (9.0) |
| Latency to lie down, min | 5.1 (6.3) | 5.3 (5.0) | 5.7 (7.0) | 4.3 (5.5) | 5.2 (4.7) | 5.0 (7.0) |
| . | Housing system during gestation . | Floor type during lactation . | Lameness status1 . | |||
|---|---|---|---|---|---|---|
| . | Loose housing . | Gestation stalls . | Slatted steel . | Cast-iron . | Non-lame . | Lame . |
| Day of transfer to farrowing crate (−5 d) | ||||||
| Time to lie down, s | 19.5 (15.0) | 17.0 (20.0) | 18.0 (15.0) | 17.0 (22.0) | 22.0 (19.0) | 15.0 (13.0) |
| Latency to lie down, min | 14.1 (10.7) | 19.4 (20.5) | 15.5 (11.0) | 17.5 (13.4) | 20.5 (18.7)a | 14.1 (10.7)b |
| 24 h after entering farrowing crate (−4 d) | ||||||
| Time to lie down, s | 12.0 (12.0) | 18.0 (15.0) | 15.5 (12.5) | 15.5 (13.5) | 16.0 (13.0) | 15.0 (13.0) |
| Latency to lie down, min | 3.3 (3.38)a | 7.0 (8.8)b | 5.3 (9.1) | 4.4 (5.2) | 5.0 (9.0) | 4.0 (5.3) |
| 10 d postpartum | ||||||
| Time to lie down, s | 11.5 (9.0) | 12.0 (16.0) | 12.5 (8.0) | 10.0 (11.0) | 11.0 (11.0) | 12.0 (9.0) |
| Latency to lie down, min | 5.1 (6.3) | 5.3 (5.0) | 5.7 (7.0) | 4.3 (5.5) | 5.2 (4.7) | 5.0 (7.0) |
1Sows were categorized as nonlame (score ≤ 1) or lame (score ≥ 2) based on a 6-point lameness scale (0 = not lame to 5 = severely lame, cannot stand).
a,bWithin a row and main effect, medians lacking common superscript letters differ; P < 0.05.
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