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

	Wounds		Calluses		Bursitis		Capped hock		Total n
	n	%	n	%	n	%	n	%
Floor/bedding
Outdoor	0	0.0	13	37.1	4	11.4	11	31.4	35
Solid with bedding	5	14.7	30	88.2	13	38.2	17	50.0	34
Partly slatted with bedding	4	7.8	47	92.2	24	47.1	30	58.8	51
Partly slatted no bedding	32	25.8	112	90.3	50	40.3	80	64.5	124
Fully slatted	10	28.6	35	100.0	12	34.3	21	60.0	35
Week of lactation
1-week	19	26.0	64	87.7	20	27.4	37	50.7	73
2-week	17	21.8	65	83.3	26	33.3	44	56.4	78
3-week	9	14.1	52	81.3	27	42.2	36	56.3	64
4-week	6	9.4	56	87.5	30	46.9	42	65.6	64
Sow's responsiveness to humans¹
Bright, alert and responsive	28	15.9	141	80.1	57	32.4	100	56.8	176
May be dull	17	21.3	76	95.0	33	41.3	45	56.3	80
Dull and unresponsive	6	26.1	20	87.0	13	56.5	14	60.9	23
Space between sow's back and crate
<5 cm	5	16.1	30	96.8	15	48.4	24	77.4	31
5-10 cm	15	26.3	50	87.7	21	36.8	35	61.4	57
>10 cm	27	19.9	125	91.9	55	40.4	82	60.3	136
Space between sow's tail and crate
<10 cm	7	20.0	31	88.6	18	51.4	22	62.9	35
10 - 20 cm	11	17.5	57	90.5	30	47.6	39	61.9	63
>20 cm	28	23.0	113	92.6	41	33.6	77	63.1	122
Slat material
Metal	23	22.7	90	89.1	50	49.5	56	55.4	101
Plastic	20	20.6	92	94.8	32	33.0	65	67.0	97
Metal and plastic	3	27.3	11	100	3	27.3	8	72.7	11
Bedding type
Straw	7	10.9	58	90.6	25	39.1	36	56.3	64
Wood shavings	8	25.8	27	87.1	16	51.6	20	64.5	31
Paper	1	16.7	6	100.0	2	33.3	3	50.0	6

ISSN: 1746-6148