Evaluation of Postmortem Inspection Procedures to Diagnose Bovine Tuberculosis at Debre Birhan Municipal Abattoir
Routine meat inspection in the abattoir was used to examine carcass for subsequent approval for consumption. However, the chance of missing lesions results in approval of carcass and/or the offal with lesions of tuberculosis. A cross-sectional study was conducted at Debre Birhan Municipal abattoir f...
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doaj-2c0ec033b7b34a4abf8814a2f19c722e2021-09-25T23:36:00ZengMDPI AGAnimals2076-26152021-09-01112620262010.3390/ani11092620Evaluation of Postmortem Inspection Procedures to Diagnose Bovine Tuberculosis at Debre Birhan Municipal AbattoirFanos Tadesse Woldemariyam0Tibebeu Markos1Dereje Shegu2Kassa Demissie Abdi3Jan Paeshuyse4College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu P.O. Box 34, EthiopiaCollege of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu P.O. Box 34, EthiopiaNational Animal Health and Diagnostic and Investigation Center, Sebeta P.O. Box 04, EthiopiaCollege of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu P.O. Box 34, EthiopiaLaboratory of Host Pathogen Interaction, Department of Biosystems, Division of Animal and Human Health Engineering, KU Leuven, 3001 Leuven, BelgiumRoutine meat inspection in the abattoir was used to examine carcass for subsequent approval for consumption. However, the chance of missing lesions results in approval of carcass and/or the offal with lesions of tuberculosis. A cross-sectional study was conducted at Debre Birhan Municipal abattoir from October 2016 to May 2017. Lesion prevalence estimation and two meat inspection procedures’ efficacy evaluation was attempted. The breeds of the animals inspected were zebu breeds. Routine abattoir meat inspection involves visual inspection, palpation and incision of intact organs such as the liver and kidneys, as well as inspection, palpation and incision of tracheobronchial, mediastinal and prescapular lymph nodes. The detailed meat inspection involves inspection of each of the carcass. In this case, the seven lobes of the two lungs, lymph nodes and organs were also thoroughly examined. The cut surfaces were examined under bright light sources for the presence of an abscess, cheesy mass, and tubercles in detail. The study involved and compared both routine and detailed meat inspections at the abattoir. Chi-square test of independence and odds ratio were used to see the association of lesion and different risk factors. Based on detailed meat inspection, the overall lesion prevalence of bovine tuberculosis in the carcass of cattle slaughtered at Debre Birhan municipality abattoir was found to be 4.7% but only 0.5% of the carcass examined had detectable bovine tuberculosis lesions when routine abattoir meat inspection alone was used. The majority of the lesions were distributed to the lungs and associated lymph nodes. There was a significant association (<i>p</i> < 0.05) in TB infection rate and body condition score. In conclusion, this study has clearly indicated the prevalence of bovine tuberculosis lesions in the abattoir that are missed by routine abattoir meat inspection. In addition, it showed low sensitivity of the routine meat inspection procedure used. Hence, our study warrants immediate attention to strengthen the current meat inspection practices at Debre Birhan public abattoir.https://www.mdpi.com/2076-2615/11/9/2620abattoirbovine tuberculosislesionmeat inspection |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Fanos Tadesse Woldemariyam Tibebeu Markos Dereje Shegu Kassa Demissie Abdi Jan Paeshuyse |
spellingShingle |
Fanos Tadesse Woldemariyam Tibebeu Markos Dereje Shegu Kassa Demissie Abdi Jan Paeshuyse Evaluation of Postmortem Inspection Procedures to Diagnose Bovine Tuberculosis at Debre Birhan Municipal Abattoir Animals abattoir bovine tuberculosis lesion meat inspection |
author_facet |
Fanos Tadesse Woldemariyam Tibebeu Markos Dereje Shegu Kassa Demissie Abdi Jan Paeshuyse |
author_sort |
Fanos Tadesse Woldemariyam |
title |
Evaluation of Postmortem Inspection Procedures to Diagnose Bovine Tuberculosis at Debre Birhan Municipal Abattoir |
title_short |
Evaluation of Postmortem Inspection Procedures to Diagnose Bovine Tuberculosis at Debre Birhan Municipal Abattoir |
title_full |
Evaluation of Postmortem Inspection Procedures to Diagnose Bovine Tuberculosis at Debre Birhan Municipal Abattoir |
title_fullStr |
Evaluation of Postmortem Inspection Procedures to Diagnose Bovine Tuberculosis at Debre Birhan Municipal Abattoir |
title_full_unstemmed |
Evaluation of Postmortem Inspection Procedures to Diagnose Bovine Tuberculosis at Debre Birhan Municipal Abattoir |
title_sort |
evaluation of postmortem inspection procedures to diagnose bovine tuberculosis at debre birhan municipal abattoir |
publisher |
MDPI AG |
series |
Animals |
issn |
2076-2615 |
publishDate |
2021-09-01 |
description |
Routine meat inspection in the abattoir was used to examine carcass for subsequent approval for consumption. However, the chance of missing lesions results in approval of carcass and/or the offal with lesions of tuberculosis. A cross-sectional study was conducted at Debre Birhan Municipal abattoir from October 2016 to May 2017. Lesion prevalence estimation and two meat inspection procedures’ efficacy evaluation was attempted. The breeds of the animals inspected were zebu breeds. Routine abattoir meat inspection involves visual inspection, palpation and incision of intact organs such as the liver and kidneys, as well as inspection, palpation and incision of tracheobronchial, mediastinal and prescapular lymph nodes. The detailed meat inspection involves inspection of each of the carcass. In this case, the seven lobes of the two lungs, lymph nodes and organs were also thoroughly examined. The cut surfaces were examined under bright light sources for the presence of an abscess, cheesy mass, and tubercles in detail. The study involved and compared both routine and detailed meat inspections at the abattoir. Chi-square test of independence and odds ratio were used to see the association of lesion and different risk factors. Based on detailed meat inspection, the overall lesion prevalence of bovine tuberculosis in the carcass of cattle slaughtered at Debre Birhan municipality abattoir was found to be 4.7% but only 0.5% of the carcass examined had detectable bovine tuberculosis lesions when routine abattoir meat inspection alone was used. The majority of the lesions were distributed to the lungs and associated lymph nodes. There was a significant association (<i>p</i> < 0.05) in TB infection rate and body condition score. In conclusion, this study has clearly indicated the prevalence of bovine tuberculosis lesions in the abattoir that are missed by routine abattoir meat inspection. In addition, it showed low sensitivity of the routine meat inspection procedure used. Hence, our study warrants immediate attention to strengthen the current meat inspection practices at Debre Birhan public abattoir. |
topic |
abattoir bovine tuberculosis lesion meat inspection |
url |
https://www.mdpi.com/2076-2615/11/9/2620 |
work_keys_str_mv |
AT fanostadessewoldemariyam evaluationofpostmorteminspectionprocedurestodiagnosebovinetuberculosisatdebrebirhanmunicipalabattoir AT tibebeumarkos evaluationofpostmorteminspectionprocedurestodiagnosebovinetuberculosisatdebrebirhanmunicipalabattoir AT derejeshegu evaluationofpostmorteminspectionprocedurestodiagnosebovinetuberculosisatdebrebirhanmunicipalabattoir AT kassademissieabdi evaluationofpostmorteminspectionprocedurestodiagnosebovinetuberculosisatdebrebirhanmunicipalabattoir AT janpaeshuyse evaluationofpostmorteminspectionprocedurestodiagnosebovinetuberculosisatdebrebirhanmunicipalabattoir |
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