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  1. Article: Bacteria Isolated From Milk of Dairy Cows With and Without Clinical Mastitis in Different Regions of Australia and Their AMR Profiles.

    Al-Harbi, Hulayyil / Ranjbar, Shahab / Moore, Robert J / Alawneh, John I

    Frontiers in veterinary science

    2021  Volume 8, Page(s) 743725

    Abstract: Mastitis is the most common disease in dairy cattle worldwide. The objectives of this study were to estimate the prevalence of different bacterial species associated with mastitis from dairy herds located in geographically and climatically distinct zones ...

    Abstract Mastitis is the most common disease in dairy cattle worldwide. The objectives of this study were to estimate the prevalence of different bacterial species associated with mastitis from dairy herds located in geographically and climatically distinct zones in Australia, and to evaluate the antimicrobial susceptibility of the isolated bacteria. Quarter-level milk samples (
    Language English
    Publishing date 2021-11-04
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2834243-4
    ISSN 2297-1769
    ISSN 2297-1769
    DOI 10.3389/fvets.2021.743725
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Development and application of a new liver pathology recording system for use in cattle abattoirs

    Owen, Helen / Jones, Emily / Kowald, Carla / Hand, Sebastian / McGowan, Michael / Cobbold, Rowland / Barnes, Tamsin S. / Gibson, Justine S. / Ranjbar, Shahab / Palmieri, Chiara / Allavena, Rachel

    Research in Veterinary Science. 2023 May, v. 158 p.164-184

    2023  

    Abstract: Liver disease in beef cattle has a significant global economic impact on feedlot and abattoir industries due to reduced animal performance, carcase yield, and carcase quality. This study aimed to create a post-mortem data collection tool which could be ... ...

    Abstract Liver disease in beef cattle has a significant global economic impact on feedlot and abattoir industries due to reduced animal performance, carcase yield, and carcase quality. This study aimed to create a post-mortem data collection tool which could be deployed at chain speed on an abattoir floor, as well as to evaluate pathological findings in both normal and condemned livers from an Australian beef cattle population. The first 1006 livers were used to formulate a user-friendly, high-throughput liver grading tool for use in an abattoir setting and to evaluate the histological features of common liver abnormalities. Subsequently, over 11,000 livers from a Southeast Queensland abattoir were analyzed. The most observed defects in condemned livers were liver abscessation, fibrosis, adhesions, and liver fluke, with histological features similar to previous reports. Bacterial culture was performed in 29 cases of liver abscessation, revealing a different balance of flora to that reported internationally. This study has developed an easy to use, efficient data collection tool that enables rapid, highly detailed assessment of large numbers of beef cattle livers at slaughter. This tool will allow thorough investigation into the effect of liver disease on beef production, in both industry and research contexts.
    Keywords animal performance ; bacterial culture ; beef cattle ; beef production ; carcass quality ; carcass yield ; data collection ; economic impact ; feedlots ; fibrosis ; flora ; histology ; industry ; liver ; liver diseases ; liver flukes ; research ; slaughter ; slaughterhouses ; veterinary medicine ; Queensland ; Abattoir ; Data collection tool ; Pathology
    Language English
    Dates of publication 2023-05
    Size p. 164-184.
    Publishing place Elsevier Ltd
    Document type Article ; Online
    ZDB-ID 840961-4
    ISSN 1532-2661 ; 0034-5288
    ISSN (online) 1532-2661
    ISSN 0034-5288
    DOI 10.1016/j.rvsc.2023.03.002
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 2292: Show issues

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  3. Article: Bacterial culture and antimicrobial susceptibility results from bovine milk samples submitted to four veterinary diagnostic laboratories in Australia from 2015 to 2019.

    Langhorne, Charlotte / Gupta, Suman Das / Horsman, Sara / Wood, Caitlin / Wood, Benjamin J / Barker, Leslie / Deutscher, Ania / Price, Rochelle / McGowan, Michael R / Humphris, Mark / Ranjbar, Shahab / Henning, Joerg / Gibson, Justine S

    Frontiers in veterinary science

    2023  Volume 10, Page(s) 1232048

    Abstract: A 5-year retrospective study was conducted to describe the mastitis-causing organisms isolated from bovine milk samples submitted to four veterinary diagnostic laboratories in Australia. The aim of this study was to identify temporal, geographical, and ... ...

    Abstract A 5-year retrospective study was conducted to describe the mastitis-causing organisms isolated from bovine milk samples submitted to four veterinary diagnostic laboratories in Australia. The aim of this study was to identify temporal, geographical, and seasonal patterns of occurrence for the organisms and report the
    Language English
    Publishing date 2023-08-10
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2834243-4
    ISSN 2297-1769
    ISSN 2297-1769
    DOI 10.3389/fvets.2023.1232048
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Bacterial culture and susceptibility test results for clinical mastitis samples from Australia's subtropical dairy region.

    Langhorne, Charlotte / Horsman, Sara / Wood, Caitlin / Clark, Rachael / Price, Rochelle / Henning, Joerg / Grewar, John D / Wood, Benjamin J / Ranjbar, Shahab / McGowan, Michael R / Gibson, Justine S

    Journal of dairy science

    2023  Volume 107, Issue 2, Page(s) 1151–1163

    Abstract: This study aimed to identify the pathogens isolated from the milk of cows with clinical mastitis in the subtropical region of Australia and to determine the antimicrobial susceptibility of these bacteria. Thirty dairy herds in the subtropical dairy ... ...

    Abstract This study aimed to identify the pathogens isolated from the milk of cows with clinical mastitis in the subtropical region of Australia and to determine the antimicrobial susceptibility of these bacteria. Thirty dairy herds in the subtropical dairy region were asked to submit milk samples for the first 5 cases of clinical mastitis each month for 12 mo. Samples underwent aerobic culture, and isolates were identified via MALDI-TOF mass spectrometry. Antimicrobial susceptibility was determined for Escherichia coli, Enterococcus spp., Streptococcus agalactiae, Streptococcus uberis, Streptococcus dysgalactiae, Staphylococcus aureus, and non-aureus staphylococci and mammaliicocci (NASM). Between March 2021 and July 2022, 1,230 milk samples were collected. A positive culture result was recorded for 812 (66%) of the milk samples; from these samples, 909 isolates were obtained, including 49 isolates where no identification was possible. The remaining samples were classified as having no growth (16.8%) or as being contaminated (17.2%). The most common isolates with a MALDI-TOF diagnosis (n = 909) were Strep. uberis (23.6%), followed by the NASM group (15.0%). Farms enrolled in the study were in 3 distinct locations within the subtropical dairy region: North Queensland, Southeast Queensland, and Northern New South Wales. Some variation in isolate prevalence occurred between these 3 locations. We found lower odds of a sample being positive for E. coli in North Queensland (odds ratio [OR]: 0.25; 95% confidence interval [CI]: 0.07-0.87) and higher odds in Southeast Queensland (OR: 4.01; 95% CI: 1.96-8.20) compared with the reference, Northern New South Wales. We further found higher odds of Strep. dysgalactiae in North Queensland (OR: 5.69; 95% CI: 1.85-17.54) and Southeast Queensland compared with Northern New South Wales (OR: 3.99; 95% CI: 1.73-9.22). Although some seasonal patterns were observed, season was not significant for any of the analyzed isolates. Farm-level differences in pathogen profiles were obvious. Overall, clinical mastitis pathogens had low levels of resistance to the antimicrobials tested. This research demonstrates that Strep. uberis and the NASM bacterial group are the most common pathogens causing clinical mastitis in the subtropical dairy region. It highlights the importance of understanding pathogenic causes of mastitis at the farm and regional level for targeted control and therapy.
    MeSH term(s) Female ; Animals ; Cattle ; Escherichia coli ; Streptococcal Infections/veterinary ; Staphylococcus ; Milk/microbiology ; Bacteria ; Anti-Infective Agents ; Mastitis, Bovine/microbiology ; Cattle Diseases
    Chemical Substances Anti-Infective Agents
    Language English
    Publishing date 2023-09-26
    Publishing country United States
    Document type Journal Article
    ZDB-ID 242499-x
    ISSN 1525-3198 ; 0022-0302
    ISSN (online) 1525-3198
    ISSN 0022-0302
    DOI 10.3168/jds.2023-23838
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.B 810: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

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  5. Article ; Online: Development and application of a new liver pathology recording system for use in cattle abattoirs.

    Owen, Helen / Jones, Emily / Kowald, Carla / Hand, Sebastian / McGowan, Michael / Cobbold, Rowland / Barnes, Tamsin S / Gibson, Justine S / Ranjbar, Shahab / Palmieri, Chiara / Allavena, Rachel

    Research in veterinary science

    2023  Volume 158, Page(s) 164–184

    Abstract: Liver disease in beef cattle has a significant global economic impact on feedlot and abattoir industries due to reduced animal performance, carcase yield, and carcase quality. This study aimed to create a post-mortem data collection tool which could be ... ...

    Abstract Liver disease in beef cattle has a significant global economic impact on feedlot and abattoir industries due to reduced animal performance, carcase yield, and carcase quality. This study aimed to create a post-mortem data collection tool which could be deployed at chain speed on an abattoir floor, as well as to evaluate pathological findings in both normal and condemned livers from an Australian beef cattle population. The first 1006 livers were used to formulate a user-friendly, high-throughput liver grading tool for use in an abattoir setting and to evaluate the histological features of common liver abnormalities. Subsequently, over 11,000 livers from a Southeast Queensland abattoir were analyzed. The most observed defects in condemned livers were liver abscessation, fibrosis, adhesions, and liver fluke, with histological features similar to previous reports. Bacterial culture was performed in 29 cases of liver abscessation, revealing a different balance of flora to that reported internationally. This study has developed an easy to use, efficient data collection tool that enables rapid, highly detailed assessment of large numbers of beef cattle livers at slaughter. This tool will allow thorough investigation into the effect of liver disease on beef production, in both industry and research contexts.
    MeSH term(s) Cattle ; Animals ; Cattle Diseases/epidemiology ; Australia/epidemiology ; Abattoirs ; Fasciola hepatica ; Liver/pathology
    Language English
    Publishing date 2023-03-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 840961-4
    ISSN 1532-2661 ; 0034-5288
    ISSN (online) 1532-2661
    ISSN 0034-5288
    DOI 10.1016/j.rvsc.2023.03.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.B 673: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

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