Reference | Howe1976 (10001)

The Effect of Tetracycline on the Coliform Gut Flora of Broiler Chickens with Special Reference to Antibiotic Resistance and O-Serotypes of Escherichia coli.


Howe, K.; Linton, A. H.; Osborne, A. D. (United Kingdom of Great Britain and Northern Ireland)

Journal of Applied Microbiology (1976)

Reference


The birds were divided into two groups of six and housed in separate buildings for the duration of the experiment. Throughout the first 28 days of life each group was kept in a box under an infrared lamp. To facilitate sampling of single birds. each bird was caged separately from 28 days until the time of slaughter. terramycin was added to the drinking water for 24 h on days 1 and 35.

Eleven samples of pooled droppings were collected during the first 28 days from each group while the birds were running together. A further 11 samples from each of the 12 separately caged birds were collected during the period 28-63 days. Seven hundred and sixty-three isolates of E. coli were obtained from the tetracyclinetreated group and 732 from the control group.

AST Method: Broth Microdilution

Reference explicitly reports AST breakpoints: False

Reference reports using a MIC table: False

Is Excluded: False

Country Sub-Region Sub-Region Detail
United Kingdom of Great Britain and Northern Ireland Bristol, City of (Unitary authority) Langford
ID Note Resolution

Factors


Title Host Host Production Stage Description ROs
Oxytetracycline Use Chicken Broilers Farm Oxytetracycline as Terramycin was added to drinking water (6 g/10 galls/1000 chicks/day) for 24 h on day 1. Measured day 28. 3