The effect of conditioning period on loin muscle tenderness in crossbred lambs with or without the Texel Muscling QTL (TM-QTL)

H...............H

Show simple item record

dc.contributor.author Lambe, N. R.
dc.contributor.author Haresign, W.
dc.contributor.author Macfarlane, J. M.
dc.contributor.author Richardson, R.I.
dc.contributor.author Matika, O.
dc.contributor.author Bunger, L.
dc.date.accessioned 2011-06-01T13:49:05Z
dc.date.available 2011-06-01T13:49:05Z
dc.date.issued 2010-08-01
dc.identifier.citation Lambe , N R , Haresign , W , Macfarlane , J M , Richardson , R I , Matika , O & Bunger , L 2010 , ' The effect of conditioning period on loin muscle tenderness in crossbred lambs with or without the Texel Muscling QTL (TM-QTL) ' Meat Science , vol 85 , no. 4 , pp. 715-720 . en
dc.identifier.other PURE: 164774
dc.identifier.other dspace: 2160/6887
dc.identifier.uri http://hdl.handle.net/2160/6887
dc.description Lambe, N.R., Haresign, W., Macfarlane, J.M., Richardson, R.I., Matika, O., Bunger, L. (2010). The effect of conditioning period on loin muscle tenderness in crossbred lambs with or without the Texel Muscling QTL (TM-QTL).  Meat Science, 85, (4), 715-720. Sponsorship: BBSRC/DEFRA/EBLEX, HCC, QMS, LMCNI, Catapult Genetics Pfizer, AgResearch New Zealand, Innovis Genetic Ltd., Welsh Country Foods Ltd., EplusV/Germany, ASDA stores, Scottish Association of Meat Wholesalers, Suffolk Sire Referencing Scheme Ltd., British Texel Sheep Society Ltd., and Charollais Sire Reference Scheme. IMPF: 02.61 RONO: 00 on, R.I., en
dc.description.abstract A Texel muscling quantitative trait locus (TM-QTL) has been identified on chromosome 18, which increases loin muscling, but may also have a negative impact on mechanically-measured loin tenderness in crossbred lambs, depending on conditioning time. This study investigated the influence of a range of conditioning times (3, 5, 7 or 9 days) on the effect of TM-QTL on loin muscle tenderness. Using Texel rams heterozygous for TM-QTL, mated to non-carrier Mule ewes, heterozygous (n = 45) and wild-type (n = 50) crossbred lambs were produced. Weight of the valuable Longissimus lumborum muscle was higher in TM-QTL carriers than non-carriers, when compared at a fixed age (+11.5%; P = 0.038), with the same trend at a fixed carcass weight (+10.2%; P = 0.064). Toughness, measured by shear force, was significantly higher in samples from TM-QTL carriers than non-carriers, after conditioning for 3 days (P = 0.002), 5 days (P = 0.003) or 7 days (P = 0.03), but was not significantly different after 9 days of conditioning (P = 0.32). Compared to non-carrier lambs, the proportion of samples above consumer acceptability thresholds for toughness was greater in the TM-QTL carrier lambs after 3 and 5 days of conditioning, similar at 7 days, but lower at 9 days. The results suggest that the negative effect of TM-QTL on loin tenderness in crossbred lambs can be overcome by conditioning for more than 7 days. Marketing of TM-QTL carrier lambs through companies that use enhanced processing protocols could be beneficial, due to higher loin muscle weights, without negative effects on meat quality. Keywords: Meat eating quality; Meat quality; Muscularity; Texel; Lambs; QTL en
dc.format.extent 6 en
dc.language.iso eng
dc.relation.ispartof Meat Science en
dc.title The effect of conditioning period on loin muscle tenderness in crossbred lambs with or without the Texel Muscling QTL (TM-QTL) en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1016/j.meatsci.2010.03.029
dc.contributor.institution Institute of Biological, Environmental and Rural Sciences en
dc.description.status Peer reviewed en


Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search Cadair


Advanced Search

Browse

My Account