RECOUNT OF COLIFORMS AND Escherichia coli IN CATTLE CARCASSES UNDER PHYSICAL AND CHEMICAL TREATMENTS
We evaluated the recount of total coliforms and Escherichia coli in cattle carcasses submitted to different treatments which included combinations of the methods of washing, disinfecting and vaporizing, using the completely randomized design of a factor with 3 replications. Sampling was carried...
| Main Authors: | , |
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| Format: | Article |
| Language: | Spanish |
| Published: |
Universidad del Cauca
2014-12-01
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| Series: | Biotecnología en el Sector Agropecuario y Agroindustrial |
| Subjects: | |
| Online Access: | http://revistabiotecnologia.unicauca.edu.co/revista/index.php/biotecnologia/article/view/337/288 |
| Summary: | We evaluated the recount of total coliforms and Escherichia coli in cattle
carcasses submitted to different treatments which included combinations
of the methods of washing, disinfecting and vaporizing, using the completely
randomized design of a factor with 3 replications. Sampling was
carried out by swab surface in three different areas of the simple. (back,
chest and rump), which were subsequently analyzed by the plate count
method. When applying sequentially microbial removal methods, was observed
the progressive decrease in total coliform counts and E. coli, and
variability of the data, mainly in treatments C, D y E. Multiple contrasts
proof of Friedman revealed the no statistical differences between counts of
the treatments C and E in the sample 2, indicating the inefficacy of vaporization
as coadjuvant of the acidification to decrease counting of the microorganisms
of study. Comparison tests on independent samples showed
identical results to the Friedman test, except for counting of E. coli between
treatments D y E, suggesting that vaporization has significant effect to enhance
the diminution of count of microorganisms on carcasses.
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| ISSN: | 1692-3561 1909-9959 |