Detection of Integrase Gene in E. coli Isolated from Pigs at Different Stages of Production System

Table 2

Details of the number of isolates obtained from the animals and the environment.

(a)

	Commensal E. coli isolates	E. coli  isolates integron class 1 positive	E. coli  isolates integron class 2 positive	E. coli  isolates integron classes 1 and 2 positive
Sows	80	27	38	15
Piglets F	116	20	52	7
Piglets W	85	44	7	0
Piglets G/F	113	57	34	6

(b)

	Number of samples	Commensal E. coli isolates	E. coli isolates integron class 1 positive	E. coli isolates integron class 1 positive	E. coli isolates integron classes 1 and 2 positive
Pits	3	18	11	3	1
Chamber	3	16	3	6	2
Lagoon	3	17	6	6	2

Piglets F (Farrowing), W (Weaning) y G/F (Growing/Finishing).