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In vivo estimation of lamb carcass composition by real-time ultrasonography

2006Journal article Open access
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dc.contributor.authorTeixeira, Alfredo
dc.contributor.authorMatos, Sofia
dc.contributor.authorRodrigues, Sandra
dc.contributor.authorDelfa, Rafael
dc.contributor.authorCadavez, Vasco
dc.date.accessioned2008-09-09T15:19:28Z
dc.date.available2008-09-09T15:19:28Z
dc.date.issued2006
dc.description.abstractThe objective of this study was to evaluate the accuracy of ultrasonography to measure fat thickness in live lambs and predict carcass composition to find a system that can assess carcass composition easily and accurately, without damage to the product and can improve carcass classification. Fat thickness (FTh) between the 12th and 13th ribs and between the 3rd and 4th lumbar vertebrae, was measured in vivo using real-time ultrasound, in 67 Churra Galega Bragançana males (mean weight 36.0 kg, range 21.5–47.0 kg), using an ALOKA SSD-500V equipped with two probes (5 and 7.5 MHz) in order to predict carcass composition. The most satisfactory correlation between carcass and ultrasound measurements was between the 3rd and 4th lumbar vertebrae fat thickness (FTh). The first variable admitted in the models to predict carcass composition (live weight, LW) explained between 63% and 96% of the total variation of the weight of the components of the carcass. In fact, 96% of the variation in total amount of muscle was accounted for by live weight. The inclusion of the ultrasound measures with the 7.5 MHz probe improved, in all prediction equations, the coefficient of determination (R2) with a substantial reduction in the residual standard deviation (RSD). In relation to the subcutaneous fat of the carcass, 85% of the variation was explained by live weight and the FTh 12–13 7.5 measurement. In the prediction model for total carcass fat weight, live weight and ultrasound fat thickness measurement explained 88% of the variation. The results indicate that in vivo ultrasound fat thickness measures in association with live weight can be used to predict carcass composition in Churra Galega Bragançana lambs.en
dc.description.sponsorshipPOCTIen
dc.identifier.citationTeixeira, Alfredo; Matos, S.; Rodrigues, Sandra; Delfa, R.; Cadavez, Vasco (2006). In vivo estimation of lamb carcass composition by real-time ultrasonography. Meat Science. ISSN 0309-1740. 74:2, p. 289-295en
dc.identifier.doi10.1016/j.meatsci.2006.03.023
dc.identifier.issn0309-1740
dc.identifier.urihttp://hdl.handle.net/10198/791
dc.language.isoengen
dc.peerreviewedyes
dc.publisherElsevieren
dc.subjectLamben
dc.subjectFat thicknessen
dc.subjectCarcass compositionen
dc.subjectUltrasounden
dc.titleIn vivo estimation of lamb carcass composition by real-time ultrasonographyen
dc.typejournal article
dspace.entity.typePublication
person.familyNameTeixeira
person.familyNameRodrigues
person.familyNameCadavez
person.givenNameAlfredo
person.givenNameSandra
person.givenNameVasco
person.identifier958487
person.identifierR-000-HDG
person.identifier.ciencia-id2A1A-FF0C-185B
person.identifier.ciencia-id651F-D964-32E1
person.identifier.ciencia-id441B-01AB-A12E
person.identifier.orcid0000-0003-4607-4796
person.identifier.orcid0000-0003-3301-1729
person.identifier.orcid0000-0002-3077-7414
person.identifier.ridG-4118-2011
person.identifier.ridC-6486-2008
person.identifier.ridA-3958-2010
person.identifier.scopus-author-id56195849200
person.identifier.scopus-author-id14048942500
person.identifier.scopus-author-id9039121900
rcaap.rightsopenAccess
rcaap.typearticleen
relation.isAuthorOfPublication27cc89a2-6661-4d8d-a727-21109c04a74e
relation.isAuthorOfPublication684ab6a0-e3ea-4b6e-9874-d20d71e2a3f5
relation.isAuthorOfPublication57b410e9-f6b7-42ff-ab3d-b526278715eb
relation.isAuthorOfPublication.latestForDiscovery684ab6a0-e3ea-4b6e-9874-d20d71e2a3f5

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