Antimicrobial use in lactating sows, piglets, nursery, and grower-finisher pigs on swine farms in Ontario, Canada during 2017 and 2018

Table 3 Biosecurity practices by herd type for 25 nursery, 25 farrowing, and 23 grower-finisher herds in Ontario, Canada, May 2017–April 2018

Biosecurity practice	Participating herds using practice
	Sow herds		95% confidence interval		Nursery herds		95% confidence interval		Grower-finisher herds		95% confidence interval
	n	(%)			n	(%)			n	(%)
Barn boots	25	100	0.86	1.00	25	100	0.86	1.00	23	100	0.85	1.00
Coveralls	24	96	0.80	1.00	24	96	0.80	1.00	23	100	0.85	1.00
Boot dip	3	12	0.03	0.31	5	20	0.07	0.41	3	13	0.03	0.34
Biosecurity sign	25	100	0.86	1.00	25	100	0.86	1.00	23	100	0.85	1.00
Danish entry^a	23	92	0.14	0.99	23	92	0.74	0.99	20	87	0.66	0.97
Barn locked	19	76	0.55	0.91	21	84	0.64	0.95	18	78	0.56	0.93
Visitors restricted	25	100	0.86	1.00	24	96	0.80	1.00	23	100	0.85	1.00
Shower in	19	76	0.55	0.91	18	72	0.51	0.88	13	57	0.35	0.77
Quarantine new gilts	10	40	0.21	0.61	NA	NA	NA	NA	NA	NA	NA	NA
Downtime^b	21	84	0.64	0.95	21	84	0.64	0.95	21	91	0.72	0.99

^aA biosecurity tool that uses a solid partition to divide the entryway of the barn into “clean” and “dirty” areas with storage for clothing and boots on both sides
^bDowntime refers to the requirement for visitors and personnel to refrain from visiting the farm for a certain length of time after contact with other swine farms

ISSN: 2055-5660