Fig. 2From: Antimicrobial use in lactating sows, piglets, nursery, and grower-finisher pigs on swine farms in Ontario, Canada during 2017 and 2018The number of herds by season in which data collection and sampling took place (n = 25 nursery, 25 sow herds, 23 grower-finisher herds, May 2017–April 2018). spring = March–May, summer = June–August, fall = September–November, winter = December–FebruaryBack to article page