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. 2018 May 8;96(7):2536–2544. doi: 10.1093/jas/sky160

Table 2.

Estimates of individual and maternal breed effects and heterosis effects on preweaning growth traits

Effects1 Preweaning
Birth weight kg Weaning weight kg ADG kg/d
gAi −0.06 ± 1.48 3.78 ± 7.17 0.04 ± 0.03
gHi 0.71 ± 1.69 2.06 ± 8.16 0.03 ± 0.04
gCi −2.87 ± 2.07 11.45 ± 9.68 0.11 ± 0.04*
gAm 4.92 ± 0.99*** 0.45 ± 4.91 −0.03 ± 0.02
gHm 5.25 ± 1.19*** −8.44 ± 5.90 −0.09 ± 0.03**
gCm 5.79 ± 1.61*** 17.16 ± 7.82* 0.04 ± 0.03
hti 0.81 ± 0.61 4.31 ± 2.91 0.02 ± 0.01
hzi 2.86 ± 0.73*** 21.75 ± 3.49*** 0.11 ± 0.01***
htm 0.61 ± 0.53 10.48 ± 2.65*** 0.05 ± 0.01***
hzm 1.19 ± 0.54* 27.05 ± 2.70*** 0.13 ± 0.01***

1 gi = individual breed effect; gi = maternal breed effect; hi= individual heterosis;  hm = maternal heterosis; with subscripts A = Angus, C = Caracu, H = Hereford, t = taurine breed crosses, and z = taurine-indicine crosses.

*P < 0.05; **P < 0.01; ***P < 0.001.