01497nam a2200193 a 450000100080000000500110000800800410001910000180006024500930007826001300017152008730030165000340117465300160120865300130122465300180123770000160125570000150127170000170128610513552021-03-31       2014    bl uuuu     u00u1 u    #d1 aRAVAGNOLO, O.  aGenetic parameters for cow weigth in pasture fed Hereford cattle.h[electronic resource]  aIn: WORLD CONGRESS ON GENETICS APPLIED TO LIVESTOCK PRODUCTION, 10., Vancouver, BC, Canadá. Proceedings: poster. 2014.c2014  aABSTRACT: Genetic parameters for weaning weight (WW) and cow weight (CW) at different ages, CW1 to  CW5 (24-42, 43-54, 55-66, 67-78, 79 to 120 months respectively) were estimated through a multiple trait model  for the Hereford breed in Uruguay. Data consisted of 17875 WW, 7235 CW1, 6483 CW2, 4805 CW3, 3133 CW4 and  4038 CW5. Posterior mean marginal estimates were obtained using Bayesian inference with the GIBBSF90 program. WW heritability was 0.13±0.03 using a dataset of 17875. Estimated heritabilities for CW1 through CW5 were 0.39±0.07, 0.48±0.04, 0.68±0.05, 0.59±0.06 and 0.47±0.08. Genetic correlation between CW1 and CW2, CW2 and CW3, CW3 and CW4, CW4 and CW5 were 0.93±0.06, 0.69±0.09, 0.90±0.04, and 0.90±0.05 respectively. Correlations are high but not consistent through all ages, so using several CW might improve estimation of mature weight.  aMEJORAMIENTO GENÉTICO ANIMAL  aBEEF CATTLE  aGENETICS  aMATURE WEIGHT1 aAGUILAR, I.1 aLEMA, O.M.1 aGOLDBERG, V.