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Relationships between pig farm management and facilities and lung lesions' scores and between lung lesions scores and carcass characteristics

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dc.abstract.enBackground The objective of this study was to examine the inter-relationships between pig farm management and facilities (as assessed by questionnaire) and post-mortem lung lesion (lung score assesment), which are the result of respiratory infections. The relationships between carcass characteristics and post-mortem lung lesion scores were also investigated. Results Questionnaire responses were collected from 22 self-selecting pig farmers about their farm facilities/management and health condition of the respiratory system of pigs, including the occurrence of clinical respiratory signs, results of laboratory testing for respiratory pathogens, and the use of respiratory vaccines. When fatteners were sent to the abattoir, their carcasses (n = 1,976) were examined for evidence of respiratory disease by lung lesion (pleuritis pneumonia-like (PP-like) and enzootic pneumonia-like (EP-like) lesions) scoring and the Actinobacillus pleuropneumoniae Index (APPI) was calculated. Carcass characteristics were recorded and, retrospectively, the prevalence of cachectic pigs was calculated. Using these variables, the relationships between farm facilities/management and lung lesions scores and the relationships between the latter and carcass characteristics and cachexia were explored. The key findings relating farm facilities and management to lung lesions were: slatted floors were associated with significantly higher EP-like lesions scores than litter bedding in weaners, single-stage fattening in the same building was associated with significantly higher EP-like lesions scores than two-stage fattening, but herd size, stocking density, use of all-in/all-out (AIAO) rule, technological break duration and variation in daily temperature did not affect lung lesions scores. The key findings relating lung lesion scores to carcass characteristics were: a significant, negative correlation between EP-like scores and carcass weight but not with other carcass characteristics, a significant positive correlation between PP-like scores and carcass meat content and prevalence of cachectic carcasses and a significant positive correlation between lung APPI and prevalence of cachectic carcasses. Conclusions It can be concluded that both farm facilities and management affect lung lesions scores and that the latter affect carcass characteristics. Lung lesion scoring is an inexpensive technique suitable for rapid monitoring of large numbers of carcasses that can be performed after animal slaughter. It provides useful information to inform producers about possible deficits in farm facilities or management and is a predictor of economic loss due to poorer quality carcasses.
dc.affiliationWydział Medycyny Weterynaryjnej i Nauk o Zwierzętach
dc.affiliation.instituteKatedra Nauk Przedklinicznych i Chorób Zakaźnych
dc.contributor.authorKuberka, Zbigniew
dc.contributor.authorMee, John F.
dc.contributor.authorWalaszek-Kayaoglu, Aurelia
dc.contributor.authorKlimowicz-Bodys, Małgorzata D.
dc.contributor.authorDors, Arkadiusz
dc.contributor.authorRząsa, Anna
dc.date.access2025-01-07
dc.date.accessioned2025-01-07T10:20:18Z
dc.date.available2025-01-07T10:20:18Z
dc.date.copyright2024-03-28
dc.date.issued2024
dc.description.abstract<jats:title>Abstract</jats:title><jats:sec> <jats:title>Background</jats:title> <jats:p>The objective of this study was to examine the inter-relationships between pig farm management and facilities (as assessed by questionnaire) and post-mortem lung lesion (lung score assesment), which are the result of respiratory infections. The relationships between carcass characteristics and post-mortem lung lesion scores were also investigated.</jats:p> </jats:sec><jats:sec> <jats:title>Results</jats:title> <jats:p>Questionnaire responses were collected from 22 self-selecting pig farmers about their farm facilities/management and health condition of the respiratory system of pigs, including the occurrence of clinical respiratory signs, results of laboratory testing for respiratory pathogens, and the use of respiratory vaccines. When fatteners were sent to the abattoir, their carcasses (<jats:italic>n</jats:italic> = 1,976) were examined for evidence of respiratory disease by lung lesion (pleuritis pneumonia-like (PP-like) and enzootic pneumonia-like (EP-like) lesions) scoring and the <jats:italic>Actinobacillus pleuropneumoniae</jats:italic> Index (APPI) was calculated. Carcass characteristics were recorded and, retrospectively, the prevalence of cachectic pigs was calculated. Using these variables, the relationships between farm facilities/management and lung lesions scores and the relationships between the latter and carcass characteristics and cachexia were explored. The key findings relating farm facilities and management to lung lesions were: slatted floors were associated with significantly higher EP-like lesions scores than litter bedding in weaners, single-stage fattening in the same building was associated with significantly higher EP-like lesions scores than two-stage fattening, but herd size, stocking density, use of all-in/all-out (AIAO) rule, technological break duration and variation in daily temperature did not affect lung lesions scores. The key findings relating lung lesion scores to carcass characteristics were: a significant, negative correlation between EP-like scores and carcass weight but not with other carcass characteristics, a significant positive correlation between PP-like scores and carcass meat content and prevalence of cachectic carcasses and a significant positive correlation between lung APPI and prevalence of cachectic carcasses.</jats:p> </jats:sec><jats:sec> <jats:title>Conclusions</jats:title> <jats:p>It can be concluded that both farm facilities and management affect lung lesions scores and that the latter affect carcass characteristics. Lung lesion scoring is an inexpensive technique suitable for rapid monitoring of large numbers of carcasses that can be performed after animal slaughter. It provides useful information to inform producers about possible deficits in farm facilities or management and is a predictor of economic loss due to poorer quality carcasses.</jats:p> </jats:sec>
dc.description.accesstimeat_publication
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if2,3
dc.description.points140
dc.description.reviewreview
dc.description.versionfinal_published
dc.description.volume20
dc.identifier.doi10.1186/s12917-024-03968-2
dc.identifier.issn1746-6148
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/2276
dc.identifier.weblinkhttps://bmcvetres.biomedcentral.com/articles/10.1186/s12917-024-03968-2
dc.languageen
dc.pbn.affiliationveterinary science
dc.relation.ispartofBMC Veterinary Research
dc.relation.pagesart. 124
dc.rightsCC-BY
dc.sciencecloudsend
dc.share.typeOPEN_JOURNAL
dc.subject.enpigs
dc.subject.enhealth monitoring
dc.subject.enlung scoring
dc.subject.enpost-mortem examination
dc.subject.enfarm questionnaire
dc.titleRelationships between pig farm management and facilities and lung lesions' scores and between lung lesions scores and carcass characteristics
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.issue1
oaire.citation.volume20