About: Linear mixed models built with the stepAIC function in the R environment for evaluation of TPA and WBSF

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About: Linear mixed models built with the stepAIC function in the R environment for evaluation of TPA and WBSF Goto Sponge NotDistinct Permalink

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rdfs:seeAlso	http://www.jtmtg.org/2011/abstracts/0566.PDF
Description	Abstract in J. Anim. Sci. Vol. 89, E-Suppl. 1:567-568. American Society of Animal Science ASAS-ADSA Joint Annual Meating, New Orleans 2011. In both cases (WBSF and TPA) the random effects analyses showed that only the subject affected dependent variables. In the case of model for WBSF, the stepAIC selected 5 significant fixed effects (AIC declined from 2786.8, model with no fixed effect, to 2347.8 for the final model): the estimates of parameters of the final model revealed that higher values for aging time, weight of fat and weight of LM resulted in lower values of WBSF (reg. coef. -24.2,-2.7,-3.7, resp.). Higher values for age of animals resulted in higher WBSF (reg.coef. 0.1). Steers had lower WBSF (74 N) than heifers (81 N) or bulls (84 N). In the case of model for TPA the stepAIC selected 5 significant fixed effects (AIC declined from 3313.7 to 3303.8): the parameters of the final model revealed that higher values for proportion of separable fat and length of quarters resulted in lower values of TPA (reg. coef. -9.9,-2.1, resp.). Higher values for aging time, weight of bones and age of animals resulted in higher values of TPA (reg. coef. 1.2,4.0,0.2, resp.). Abstract in J. Anim. Sci. Vol. 89, E-Suppl. 1:567-568. American Society of Animal Science ASAS-ADSA Joint Annual Meating, New Orleans 2011. In both cases (WBSF and TPA) the random effects analyses showed that only the subject affected dependent variables. In the case of model for WBSF, the stepAIC selected 5 significant fixed effects (AIC declined from 2786.8, model with no fixed effect, to 2347.8 for the final model): the estimates of parameters of the final model revealed that higher values for aging time, weight of fat and weight of LM resulted in lower values of WBSF (reg. coef. -24.2,-2.7,-3.7, resp.). Higher values for age of animals resulted in higher WBSF (reg.coef. 0.1). Steers had lower WBSF (74 N) than heifers (81 N) or bulls (84 N). In the case of model for TPA the stepAIC selected 5 significant fixed effects (AIC declined from 3313.7 to 3303.8): the parameters of the final model revealed that higher values for proportion of separable fat and length of quarters resulted in lower values of TPA (reg. coef. -9.9,-2.1, resp.). Higher values for aging time, weight of bones and age of animals resulted in higher values of TPA (reg. coef. 1.2,4.0,0.2, resp.). (en)
Title	Linear mixed models built with the stepAIC function in the R environment for evaluation of TPA and WBSF Linear mixed models built with the stepAIC function in the R environment for evaluation of TPA and WBSF (en)
skos:prefLabel	Linear mixed models built with the stepAIC function in the R environment for evaluation of TPA and WBSF Linear mixed models built with the stepAIC function in the R environment for evaluation of TPA and WBSF (en)
skos:notation	RIV/49608851:_____/11:#0000462!RIV12-MSM-49608851
http://linked.open...avai/predkladatel	Výzkumný ústav pro chov skotu, s.r.o.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(2B08037), P(LA10028), Z(MSM2678846201)
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Dufek, Aleš
http://linked.open.../riv/druhVysledku	O - Ostatní výsledky nezařaditelné do žádného z výše uvedených druhů výsledku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Výzkumný ústav pro chov skotu, s.r.o.
http://linked.open...dnocenehoVysledku	209608
http://linked.open...ai/riv/idVysledku	RIV/49608851:_____/11:#0000462
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	AIC; mixed; meat (en)
http://linked.open.../riv/klicoveSlovo	AIC mixed meat
http://linked.open...ontrolniKodProRIV	[96FEF503138A]
http://linked.open...in/vavai/riv/obor	GM
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http://linked.open...vavai/riv/projekt	Membership in ASAS Biotechnological methods for innovations of manufacturing and consumerist quality evaluation of beef as source of an animal proteins.
http://linked.open...UplatneniVysledku	2011
http://linked.open...iv/tvurceVysledku	Dufek, Aleš Simeonovová, Jana Šubrt, Jan
http://linked.open...n/vavai/riv/zamer	Uplatnění evropského modelu multifunkčního zemědělství v LFA oblastech České republiky

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