02058naa a2200313 a 450000100080000000500110000800800410001902400390006010000170009924501100011626000090022650001330023552011000036865300200146865300110148865300090149965300170150865300080152570000190153370000160155270000170156870000150158570000160160070000140161670000200163070000150165070000190166577300600168410590712018-09-24       2018    bl uuuu     u00u1 u    #d7 a10.1016/j.meatsci.2018.06.0142DOI1 aARMSTRONG E.  aNovel genetic polymorphisms associated with carcass traits in grazing Texel sheep.h[electronic resource]  c2018  aArticle history: Received 15 September 2017 //  Revised 11 May 2018 // Accepted 12 June 2018 //  Available online 22 June 2018..  aABSTRACT. Improving meat production traits has increased its importance in sheep breeding. We report novel associations of SNP present in genes related to lipid metabolism and growth with several carcass traits in purebred Texel lambs. Expected progeny differences (EPD) predictions from 461 animals from the Central Progeny Testing of Texel breed in Uruguay were used for the association analysis. Live weights at different stages, ultrasound and post-mortem traits were analyzed. Markers in several genes were associated with growth, carcass and meat quality traits. Among others: PPARGC1A with valuable cuts weight, hot carcass weight and carcass fatness; DGAT1 with live weights, fat thickness, rib-eye area and shoulder weight; CAST with birth weight and fat thickness; GHR with birth weight and carcass fatness, and GHRHR with live weights and fat thickness. Genotypic effects ranged from 0.035 to 0.923 (DGAT1 vs. weaning weight) units of phenotypic SD. Most of the associations described are novel in sheep breeding, deserving further analyses. © 2018 Elsevier Ltd. All rights reserved.  aCARCASS QUALITY  aGROWTH  aLAMB  aMEAT QUALITY  aSNP1 aCIAPPESONI, G.1 aIRIARTE, W.1 aDA SILVA, C.1 aMACEDO, F.1 aNAVAJAS, E.1 aBRITO, G.1 aSAN JULIÁN, R.1 aGIMENO, D.1 aPOSTIGLIONI A.  tMeat Science, November 2018, Volume 145, Pages 202-208.