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

Table 1 Data collected by questionnaire on use of antimicrobial active ingredients (AAI) specific to each route of administration and type of pig

Route/means of administration	Questionnaire(s)^a	Information collected
Creep feed	Farrowing^b	AAI name, grams of AAI per tonne feed, primary reason for use, age at start and end, % of piglets fed, % creep feed wasted
Oral—individual	Farrowing^b	AAI name and concentration, product name, volume given, primary reason for use, duration of use, weight and age at start of treatment, % pigs exposed
Regular feed	Farrowing, nursery, grower-finisher	Ration name, medicated or unmedicated, AAI name, grams AAI per tonne feed, primary reason for use, start and end weight of pigs, duration fed, % pigs fed
Water	Farrowing, nursery, grower-finisher	AAI name and concentration, product name, grams per liter water, primary reason for use, duration of use, weight and age at start of treatment, % pigs exposed
Injection	Farrowing, nursery, grower-finisher	AAI name and concentration, product name, volume administered per pig per day, primary reason for use, duration of use, weight and age at start of treatment, % pigs exposed

AAI antimicrobial active ingredient
^aThe farrowing questionnaire collected data on lactating sows and suckling pigs
^bSuckling pigs only

ISSN: 2055-5660