Table 4.

Estimates of the (co)variance components and the genetic parameters studied for the traits.

Traits	Models	${{\sigma }_{\alpha }}^2$	${{\sigma }_m}^2$	σam	${{\sigma }_c}^2$	${{\sigma }_e}^2$	${{\sigma }_p}^2$	${h_d}^2$	${h_m}^2$	c 2	r am	−2LogL
BWT	Model 1	0.0151				0.1432	0.1583	0.0954 ± 0.01				−30855.36
	Model 2	0.0047			0.0093	0.1418	0.1558	0.0302 ± 0.01		0.0598 ± 0.00		−31084.50
	Model 3	0.0045	0.008			0.1446	0.1572	0.0292 ± 0.01	0.0511 ± 0.01			−30979.46
	Model 4	0.0069	0.0118	– 0.0043		0.1432	0.1576	0.0443 ± 0.01	0.0751 ± 0.01		−0.4802 ± 0.11	−30988.84
	Model 5	0.0044	0.001		0.0085	0.1419	0.1559	0.0284 ± 0.01	0.0064 ± 0.00	0.0551 ± 0.01		−31087.86
	Model 6	0.0068	0.0022	– 0.0024	0.0089	0.1406	0.1561	0.0435 ±0.01	0.0143 ±0.01	0.0567 ±0.01	−0.6097 ±0.14	−31095.68
WWT	Model 1	1.7312				4.5941	6.3253	0.2737 ± 0.02				72386.53
	Model 2	1.0969			0.3125	4.7307	6.1402	0.1786 ± 0.02		0.0509 ± 0.01		72362.84
	Model 3	0.6276	0.4582			5.004	6.0898	0.1030 ± 0.02	0.0752 ± 0.01			72364.79
	Model 4	0.5119	0.2726	0.2389		5.0637	6.0871	0.0841 ± 0.01	0.0448 ± 0.01		0.6396 ± 0.14	72348.96
	Model5	0.7269	0.2374		0.1949	4.912	6.0711	0.1197 ± 0.02	0.0391 ± 0.01	0.0321 ± 0.01		72346.90
	Model 6	0.5517	0.1492	0.1925	0.1646	5.0013	6.0593	0.0911 ±0.02	0.0246 ±0.01	0.0272 ±0.01	0.6710 ±0.16	72335.19
ADG	Model 1	127.75				332.51	460.26	0.2776 ± 0.02				183122.89
	Model 2	86.249			20.93	340.98	448.16	0.1925 ± 0.02		0.0467 ± 0.01		183060.47
	Model 3	49.941	31.606			361.85	443.4	0.1126 ± 0.02	0.0713 ± 0.01			183059.37
	Model 4	37.87	17.395	19.242		368.05	442.56	0.0856 ± 0.01	0.0393 ± 0.01		0.7497 ± 0.13	183047.75
	Model 5	60.432	15.214		13.687	353.66	442.99	0.1364 ± 0.02	0.0343 ± 0.01	0.0309 ± 0.01		183039.35
	Model 6	41.078	9.6975	15.779	10.843	363.5	440.9	0.0932 ±0.02	0.0220 ±0.01	0.0246 ±0.01	0.7906 ±0.15	183029.45
KR	Model 1	0.35106				0.79058	1.1416	0.3075 ± 0.02				27806.74
	Model 2	0.275			0.0444	0.80071	1.1201	0.2455 ± 0.02		0.0396 ± 0.01		27758.10
	Model 3	0.23245	0.056			0.82917	1.1177	0.2080 ± 0.02	0.0501 ± 0.01			27765.66
	Model 4	0.2341	0.0567	– 0.0012		0.8283	1.118	0.2094 ± 0.03	0.0508 ± 0.01		−0.0103 ± 0.02	27765.66
	Model 5	0.2491	0.0187		0.0344	0.8129	1.1151	0.2234 ± 0.02	0.0168 ± 0.01	0.0308 ± 0.01		27750.58
	Model 6	0.2614	0.0207	−0.0064	0.035	0.8066	1.1174	0.2339 ±0.03	0.0186 ±0.01	0.0314 ±0.01	−0.0874 ±0.02	27750.5000

BWT: birth weight; ADG: average daily gains from birth to weaning; WWT: weaning weight; KR: Kleiber ratio (ADG/WWT0.75) from birth to weaning; ${\sigma }_a^2$: direct additive genetic variance; ${\sigma }_m^2$: maternal additive genetic variance; ${\sigma }_c^2$: maternal permanent environmental variance; σ_am: direct-maternal genetic covariance; ${\sigma }_e^2$: residual variance; ${\sigma }_p^2$: phenotypic variance; $h_d^2$: direct heritability; $h_m^2$: maternal heritability; c2: ratio of maternal permanent environmental effect; ram: direct-maternal genetic correlation; -2log L: -2*log likelihood; S.E.: standard error.