From: Antimicrobial use in lactating sows, piglets, nursery, and grower-finisher pigs on swine farms in Ontario, Canada during 2017 and 2018
Production stage
Minimum days
Maximum days
Mean days
Median days
Farrowing
18
41
25
23
Nursery
28
99
56
52
Grower-finisher
87
157
114
112