Table 4.

Breakdown by poultry antimicrobial combination

Pre-starter and Starter Phases
Antimicrobial (AM) combination	Number of chickens	Percent of birds treated	Pounds of Feed	g AM/lb of feed	Total in kg
1. bambermycin, amprolium, ethopabate, roxarsone	7,431,763,333	25%	2.25	0.061680	257,845
2. BMD, roxarsone, monensin	7,431,763,333	25%	2.25	0.072120	301,488
3. chlortetracycline, roxarsone	7,431,763,333	5%	2.25	0.218160	182,398
4. penicillin, amprolium, ethopabate	7,431,763,333	5%	2.25	0.066840	55,883
5. lincomycin, roxarsone, amprolium, ethopabate	7,431,763,333	15%	2.25	0.066400	166,546
6. virginiamycin, roxarsone, salinomycin	7,431,763,333	25%	2.25	0.044160	184,605
Total					1,148,765
Grower and Finisher Phases
Antimicrobial combination	Number of chickens	Percent of birds treated	Pounds of feed	g AM/lb of feed	Total in kg
1. bambermycin, lasalocid, roxarsone	7,431,763,333	28%	6	0.06376	796,067
2. erythromycin, arsanilic acid, zoalene	7,431,763,333	10%	6	0.1184	527,952
3. chlortetracycline, roxarsone, monensin	7,431,763,333	5%	6	0.26216	584,493
4. penicillin, roxarsone, zoalene	7,431,763,333	5%	6	0.08356	186,299
5. lincomycin, lasalocid, roxarsone	7,431,763,333	20%	6	0.06416	572,186
6. virginiamycin, monensin, roxarsone	7,431,763,333	28%	6	0.05908	737,635
Total					3,404,633