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《Effects of dietarty energy planes on growth and heritability estimates for postweaning growth traits in young beef bulls - Bailey, Liu and Shannon 1995》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、SHORTCOMMUNICATIONEffectsofdietaryenergyplanesongrowthandheritabilityestimatesforpostweaninggrowthtraitsinyoungbeefbullsD.R.C.Baileyl,M.F.Liu2,andN.H.ShannonAgricultureandAgri-FoodCanadaResearchCentreLethbridge,Atbe1aeanadaTIJ481.Received6February1995,accepted23May1995'Bailey,D.R.C.,Liu,M.F
2、.andShannon,N.H.1995.Effectsofdietaryenergyplanesongrorvthandheritabilityestimatesforpostweaninggrowthtraitsinyoungbeefbulls.Can.J.Anim.Sci.75:4694'72.RecordsofyoungANandyoungHEbullswerianalyzedto&aluatetheinfluincesofdietaryenergyplanesongrowthandheritabilityestimatesofgrowthtraitsduring16
3、8-dpostweaningtest.Estimatesofh2uforendofte;tweigtrt(WftO8),avellqldailygainontest(ADGG-168)andrelativegrowthrateontest(nCnO-IOS)*e."-uJhhigherintheMEDlinethanintheHEDline.Betweenlines,maternalheritabilityestimates(h2-)forWTOandADG0-168weresimilar.Estimatesofh2-forWT168wasmuchhigherintheHED
4、linethanintheMEDfin.jl'effdirect-maternalgeneticcorrelations(r-r)werenegati'v'e.TheseresultsmayindicatethattheantagonismbetweendirectandmaternalgeneticeffectsforpostweaninggidivthtraitsintheMEDlinewasmuchlessthanthatintheHEDline.Keywords:Beefcattle,energyplane,growth,heritabilityBailey,D.R.
5、C.,Liu,M.F.etShannon,N.H.1995.Effetsduniveau6nerg6tiquedeI'alimentation_surlacroissanceetsurlesvaleursd'h6ritabilit6descaractiresdecroissanceenpost-sevragechezlestaurillonsderacedeboucherie.Can.J.Anim.Sci.75:46g4j2.Lesrelev6sdeproductiondejeunestaurillonsAngus(AN)etHereford(HE)ont6t6analys6
6、spour6valuerlesinfluencesduniveau6nerg6tiquelNE)deI'alimentationsurlacroissanceetsurI'h6ritabilit6descaractiresdecroissancedurantuntestdepost-sevragede't68j.Lesvaleursd'h6ritabilitd(h2)pourlepoidsenfind'6preuve(PDS168),pourleGMQ(GMQ0-168)etpourletauxdicroissancerelativedurantI'essai(TCR0-16
7、8)6taientbeaucoupplus61ev6esdanslasoucheMNEquedanslasoucheHNE.Lesvaleursd'h6ritabilit6maternelle(h2-)pourlepoidsend6butdetestetpourleGMQ0-1686taientlesm6meschezlesdeuxsouches.Lesvaleursh2-pourlepoids.niind'6pr"oue6taientbeaucoupplus6lev6esdanslasoucheHNE
