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Effects of a Texel sheep muscling QTL (TM-QTL) on carcass traits in crossbred lambs

  • J. M. Macfarlane (a1), N. R. Lambe (a1), S. C. Bishop (a2), O. Matika (a3), E. Rius-Vilarrasa (a1), K. A. McLean (a1), B. T. Wolf (a4), W. Haresign (a4) and L. Bunger (a1)...

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A QTL (TM-QTL) identified on ovine chromosome 18 (Walling et al., 2004), which increases loin muscle depth by 4-8% in UK Texel sheep, is of interest for the sheep industry as a potential means to increase carcass value. Since the contribution of Texel genes to the UK slaughter generation is generally through use of Texel sires to produce crossbred slaughter lambs (e.g. Texel x Mule lambs), it is necessary to verify the effects of the TM-QTL on loin muscularity and other carcass traits in such crossbred progeny of Texel sires before explotiation of the TM-QTL in commercial sheep populations.

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Genstat 8 (PC/Windows NT), 2006. Genstat Committee, Lawes Agricultural Trust (Rothamsted Experimental Station).
Jones, H.E., Lewis, R.M., Young, M.J., and Wolf, B.T. 2002. Animal Science. 75, 387–399.
Navajas, E.A., Lambe, N.R., McLean, K.A., Glasbey, C.A., Fisher, A.V., Charteris, A.J.L., Bunger, L., and Simm, G. 2007. Meat Science. 75, 533–542.
Walling, G.A., Visscher, P.M., Wilson, A.D., McTeir, B.L., Simm, G., and Bishop, S.C. 2004. Journal of Animal Science. 82, 2234–2245.

Effects of a Texel sheep muscling QTL (TM-QTL) on carcass traits in crossbred lambs

  • J. M. Macfarlane (a1), N. R. Lambe (a1), S. C. Bishop (a2), O. Matika (a3), E. Rius-Vilarrasa (a1), K. A. McLean (a1), B. T. Wolf (a4), W. Haresign (a4) and L. Bunger (a1)...

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