A cross sectional study of the prevalence, risk factors and population attributable fractions for limb and body lesions in lactating sows on commercial farms in England

Table 8 Number and percent of lactating sows from 86 farms in England with limb lesions by floor type, week of lactation, responsiveness, space in the crate and slat material

	Shoulders		Hips, spine, tail		Total n
	n	%	n	%
Floor/bedding
Outdoor	1	2.6	0	0.0	39
Solid with bedding	2	5.9	5	14.7	34
Partly slatted with bedding	8	15.7	4	7.8	51
Partly slatted no bedding	13	10.5	16	12.9	124
Fully slatted	5	15.6	7	21.9	32
Week of lactation
1-week	15	23.8	11	17.5	63
2-week	5	7.4	8	11.8	68
3-week	4	7.1	3	5.4	56
4-week	4	7.4	10	18.5	54
Sow's responsiveness to humans¹
Bright, alert and responsive	9	6.2	21	14.5	145
May be dull	12	15.4	9	11.5	78
Dull and unresponsive	7	38.9	2	11.1	18
Space between sow's back and crate
<5 cm	7	22.6	7	22.6	31
5-10 cm	11	19.6	8	14.3	56
>10 cm	9	6.7	13	9.6	135
Space between sow's tail and crate
<10 cm	8	24.2	9	27.3	33
10 - 20 cm	7	11.5	6	9.8	61
>20 cm	12	9.7	13	10.5	124
Slat material
Metal	14	11.2	19	15.2	125
Plastic	16	14.7	14	12.8	109
Metal and plastic	2	18.2	0	0.0	11
Bedding type
Straw	7	10.9	9	14.1	64
Wood shavings	4	13.3	1	3.3	30
Paper	2	33.3	0	0.0	6

ISSN: 1746-6148