Table 1.

Percentage of farms reporting the use of different antimicrobial active ingredients by animal species (in 39 poultry farms and 54 swine farms).

Antimicrobial class	Antimicrobial active ingredient	Poultry farms n (%)	Swine farms n (%)
Aminoglycosides	Apramycin	0 (0%)	1 (2%)
	Gentamicin	0 (0%)	7 (13%)*
	Neomycin	0 (0%)	1 (2%)
	Streptomycin	2 (5%)	2 (4%)
Cephalosporins	Ceftiofur	0 (0%)	2 (4%)
	Cephalexin	0 (0%)	1 (2%)
Fluoroquinolones	Ciprofloxacin	0 (0%)	1 (2%)
	Danofloxacin	0 (0%)	1 (2%)
	Enrofloxacin	13 (33%)	19 (36%)
	Levofloxacin	1 (3%)	0 (0%)
	Norfloxacin	10 (25%)	3 (6%)*
Lincosamides and aminocyclitols	Lincomycin	0 (0%)	3 (6%)
	Lincomycin-spectinomycin	0 (0%)	1 (2%)
Macrolides	Erythromycin	3 (8%)	0 (0%)*
	Kitasamycin	1 (3%)	0 (0%)
	Tilmicosin	2 (5%)	4 (8%)
	Tulathromycin	0 (0%)	1 (2%)
	Tylosin	3 (8%)	14 (25%)*
Penicillins	Amoxicillin	8 (20%)	11 (21%)
	Penicillin	1 (3%)	1 (2%)
Phenicols	Florfenicol	4 (10%)	5 (9%)
	Thiamphenicol	1 (3%)	0 (0%)
Phosphonic acid derivatives	Fosfomycin	4 (10%)	(0%)*
Pleuromutilins	Tiamulin	0 (0%)	12 (23%)*
Polypeptides	Colistin	5 (13%)	6 (11%)
Tetraycyclines	Chlortetracycline	0 (0%)	2 (4%)
	Doxycycline	6 (15%)	11 (21%)
	Oxytetracycline	4 (10%)	16 (30%)*
Trimethoprim and sulfonamides	Trimethoprim-sulfadiazine	5 (13%)	2 (4%)
	Trimethoprim-sulfamethoxazole	2 (5%)	0 (0%)

^*Significant differences between poultry and swine farms (P ≤ 0.05), Fisher exact test (represented in bold fonts).