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

Table 1

Details of the total number of animals tested and samples obtained.

	Number of animals	Number of animals containing E. coli integron positive	Number of animals containing E. coli integron class 1 positive	Number of animals containing E. coli integron class 2 positive	Number of animals containing E. coli integron classes 1 and 2 positive
Sows	5 (15*)	5	5	5	5
Piglets F	25	18	8	15	7
Piglets W	25	15	13	3	0
Piglets G/F	25	24	22	18	16

∗Each sow was sampled 3 times in each sampling occasion of different stage of pig production. Piglets F (Farrowing), W (Weaning) y G/F (Growing/Finishing).