Cassenego, A.P.V. and D'Azevedo, P.A. and Ribeiro, A.M.L. and Frazzon, J. and Sand, S.T.Van Der and Frazzon, A. P. G. (Brazil)
Brazilian Journal of Microbiology (2011)
The study was conducted using a total of 250 day-old male Cobb 500. The broilers were housed indoors and distributed in a completely randomized design divided into eight treatment groups with five replicates each (12 birds/box). Broilers were fed with a diet based on corn-soybean meal, vegetable oil, minerals and vitamins and supplemented with a combination of ionophore-coccidiostatics (monensin) at 90g/ton, probiotic (Enterococus faecium 3.5 x 10^10 UFC/g) at 35g/ton, essential oil (extracted of thyme and clove) at 100g/ton and/or antimicrobial (bacitracin methylene disalicylate 11%) at 200g/ton. At 14 days old, all birds, except the control, received a solution containing 5x10^4 and 1x10^4 oocysts/chicken of Eimeria maxima and Eimeria acervulina, respectively. The broilers were maintained until 28 days old. The study groups can be summarized as follows: 1) unmedicated infected control; 2) ionophore coccidiostatic infected group; 3): probiotic infected group; 4) ionophore coccidiostatic and probiotic infected group; 5) essential oil infected group; 6) ionophore coccidiostatic and essential oil infected group; 7) growth promoter infected group; 8) unmedicated uninfected control.
Five cloacal swabs samples from each group were collected and environmental contamination was avoided.
AST Method: Disk Diffusion
Reference explicitly reports AST breakpoints: False
Reference reports using a MIC table: False
Is Excluded: False
| Country | Sub-Region | Sub-Region Detail |
|---|---|---|
| Brazil | Rio Grande do Sul (State) | Porto Alegre, Rio Grande do Sul |
| ID | Note | Resolution |
|---|
| Title | Host | Host | Production Stage | Description | ROs |
|---|---|---|---|---|---|
| Diet Supplementation | Chicken | Broilers | Farm | Group 2 (diet supplemented with ionophore-coccidiostatics (monensin) at 90g/ton) vs Group 1 (un-supplemented diet). Both groups were inoculated at 14 days old with 5x10^4 and 1x10^4 oocysts/chicken of Eimeria maxima and Eimeria acervulina, respectively. | 8 |
| Diet Supplementation | Chicken | Broilers | Farm | Group 3 (diet supplemented with probiotic E. faecium 3.5x10^10 UFC/g at 35g/ton) vs Group 1 (un-supplemented diet). Both groups were inoculated at 14 days old with 5x10^4 and 1x10^4 oocysts/chicken of Eimeria maxima and Eimeria acervulina, respectively. | 10 |
| Diet Supplementation | Chicken | Broilers | Farm | Group 4 (diet supplemented with both monensin and probiotic--see previous factors for detailed dose info) vs Group 1 (un-supplemented). Both groups inoculated at 14 days old with 5x10^4 and 1x10^4 oocysts/chicken of Eimeria maxima and Eimeria acervulina. | 10 |
| Diet Supplementation | Chicken | None | Farm | Group 2 (diet supplemented with ionophore-coccidiostatics (monensin) at 90g/ton) vs Group 1 (un-supplemented diet). Both groups were inoculated at 14 days old with 5x10^4 and 1x10^4 oocysts/chicken of Eimeria maxima and Eimeria acervulina, respectively. | 2 |
| Bacitracin Use | Chicken | Broilers | Farm | Group 7 (in-feed bacitracin methylene disalicylate 11% at 200g/ton) vs Group 1 (regular feed). Both groups were inoculated at 14 days old with 5x10^4 and 1x10^4 oocysts/chicken of Eimeria maxima and Eimeria acervulina. | 10 |
| Diet Supplementation | Chicken | Broilers | Farm | Group 5 (diet supplemented with essential oil (extracted of thyme and clove) at 100g/ton) vs Group 1 (un-supplemented). Both groups were inoculated at 14 days old with 5x10^4 and 1x10^4 oocysts/chicken of Eimeria maxima and Eimeria acervulina. | 10 |
| Diet Supplementation | Chicken | Broilers | Farm | Group 6 (diet supplemented with both monensin and essential oil--see previous factors for dose info) vs Group 1 (un-supplemented). Both groups were inoculated at 14 days old with 5x10^4 and 1x10^4 oocysts/chicken of Eimeria maxima and Eimeria acervulina. | 10 |