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dc.contributor.author Rius-Vilarassa, E.
dc.contributor.author Bunger, L.
dc.contributor.author Brotherstone, S.
dc.contributor.author Macfarlane, J. M.
dc.contributor.author Lambe, N. R.
dc.contributor.author Matthews, K. R.
dc.contributor.author Haresign, W.
dc.contributor.author Roehe, R.
dc.date.accessioned 2011-06-07T09:12:38Z
dc.date.available 2011-06-07T09:12:38Z
dc.date.issued 2010-03
dc.identifier.citation Rius-Vilarassa , E , Bunger , L , Brotherstone , S , Macfarlane , J M , Lambe , N R , Matthews , K R , Haresign , W & Roehe , R 2010 , ' Genetic parameters for carcass dimensional measurements from Video Image Analysis and their association with conformation and fat class scores ' Livestock Science , vol 128 , no. 1-3 , pp. 92-100 . , 10.1016/j.livsci.2009.11.004 en
dc.identifier.issn 1871-1413
dc.identifier.other PURE: 164011
dc.identifier.other dspace: 2160/6954
dc.identifier.uri http://hdl.handle.net/2160/6954
dc.description Rius-Vilarassa, E., Bunger, L., Brotherstone, S., Macfarlane, J. M., Lambe, N. R., Matthews, K. R., Haresign, W., Roehe, R. (2010). Genetic parameters for carcass dimensional measurements from Video Image Analysis and their association with conformation and fat class scores.  Livestock Science, 128 (1-3), 92-100. IMPF: 01.29 Sponsorship: LINK project (Sustainable Livestock Production program): English Beef and Lamb Executive (EBLEX), Hybu Cig Cymru (HCC), Quality Meat Scotland (QMS), the Livestock and Meat Commission for Northern Ireland (LMCNI), Scottish Association of Meat Wholesalers, CatapultGenetics, Innovis Genetics Ltd, BBSRC, Defra and also to MLC, Genesis Faraday and the Worshipful Company of Woolmen for financial support to ERV en
dc.description.abstract Data on 630 crossbred lamb carcasses were used to estimate genetic parameters for a number of carcass measures, fitting a multivariate animal model using restricted maximum likelihood. Carcass measures included: cold carcass weight (CCW), EUROP conformation and fat class scores (MLC-CF), primal joint weights predicted using MLC-CF and several carcass linear and area measures obtained by Video Image Analysis (VIA-DM). Heritability estimates for subjective carcass traits (MLC-CF and primal joint weights predicted using MLC-CF) were low (0.05–0.17), whereas those for objective carcass traits (linear and area measurements on the carcass from VIA) were moderate to high (0.20–0.53). Phenotypic correlations between MLC-CF and VIA-DM were in general low (0.01–0.51) and genetic correlations were slightly higher (− 0.04–0.81), when interpreting their absolute value. The results suggest that selection for shorter carcasses (VIA lengths) will be associated with improved conformation but a reduction of the total CCW. Likewise there was a trend in the genetic correlations between conformation and carcass widths which indicated that conformation could also be improved by selection for wider carcasses as measured by VIA which in turn will also imply an increase in CCW. The genetic correlations between VIA-DM and fat class score were only significantly different from zero for the VIA measurement for the leg area (rg = − 0.73). Length traits were highly correlated with each other, with an average genetic correlation of 0.84. Positive genetic correlations (0.47–0.85) were found between widths measured on the shoulders and chest with hind leg widths. The areas measured on the carcass were moderately to highly correlated with each other (0.54–0.90). In general, genetic correlations which were found to be significant between areas, lengths and widths were moderate to high and positive. Phenotypic and genetic correlations along with heritabilities of the VIA-DM from crossbred lambs, suggest that using this VIA dimensional information in the evaluation of purebred terminal sire breeds is likely to improve conformation on crossbred lambs. en
dc.format.extent 9 en
dc.language.iso eng
dc.relation.ispartof Livestock Science en
dc.subject viedo image analysis en
dc.subject confirmation en
dc.subject fat en
dc.subject dimensional measurements en
dc.subject heritability en
dc.title Genetic parameters for carcass dimensional measurements from Video Image Analysis and their association with conformation and fat class scores en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1016/j.livsci.2009.11.004
dc.contributor.institution Institute of Biological, Environmental and Rural Sciences en
dc.description.status Peer reviewed en


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