Abstract：
:Fasciolosis is common in UK beef cattle, but it is unclear at what levels liver fluke burdens cause production losses. This study aimed to address these uncertainties by estimating the impact of liver fluke infection on UK beef cattle productivity and investigating the use of diagnostic tests in a quantitative manner. We built three linear regression models for slaughter age by weight and different measures of liver fluke status, while accounting for sex, breed, season, year and farm of origin. Data were sourced from Scotland's largest red meat abattoir throughout 2013 and 2014. Our Meat Hygiene Service model estimated that cattle classified as having liver fluke damage had on average 10 days greater slaughter age than animals with no evidence of fasciolosis. Our liver fibrosis model estimated that the increase in slaughter age was more severe for higher fibrosis scores. Similarly, our burden model showed an increase in slaughter age for animals with as few as 1 to 10 parasites found in their livers. Lastly, we used receiver operating characteristic curves to show that serum antibody ELISA, copro-antigen ELISA and faecal egg counting can be useful in distinguishing between animals with and without production limiting levels of fasciolosis.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Mazeri S,Rydevik G,Handel I,Bronsvoort BMD,Sargison Ndoi
10.1038/s41598-017-07396-1subject
Has Abstractpub_date
2017-08-04 00:00:00pages
7319issue
1issn
2045-2322pii
10.1038/s41598-017-07396-1journal_volume
7pub_type
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pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 历史文章,杂志文章
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