Table 5.

Estimated breeding value ± standard error (S.E.), and accuracy of the estimated breeding value of the top 20% Thai indigenous synthetic chickens.

Chickens	Mixed-sex	ACC.	Male	ACC.	Female	ACC.
KKU1
BW0	4.25 ± 0.01	90.61	4.27 ± 0.01	92.68	3.80 ± 0.01	90.38
BW2	13.76 ± 0.03	73.30	14.89 ± 0.03	82.19	12.62 ± 0.05	73.36
BW4	35.55 ± 0.03	65.23	36.94 ± 0.05	74.05	31.39 ± 0.06	65.08
BW6	55.62 ± 0.07	63.05	65.39 ± 0.04	65.36	44.71 ± 0.05	71.33
BrC6	0.47 ± 0.03	75.31	0.48 ± 0.05	77.59	0.40 ± 0.05	73.27
ADG0–2	1.85 ± 0.06	72.27	1.90 ± 0.07	75.60	1.75 ± 0.04	72.68
ADG0–4	2.10 ± 0.06	72.21	2.14 ± 0.05	73.07	1.99 ± 0.05	72.00
ADG0–6	1.55 ± 0.04	68.11	1.59 ± 0.06	70.83	1.48 ± 0.08	66.84
KKU2
BW0	4.16 ± 0.01	86.76	4.10 ± 0.01	87.19	3.65 ± 0.01	86.25
BW2	13.28 ± 0.07	69.59	14.29 ± 0.05	69.70	12.75 ± 0.06	69.76
BW4	27.66 ± 0.08	62.89	29.52 ± 0.05	62.66	25.09 ± 0.08	63.00
BW6	47.54 ± 0.04	67.68	52.82 ± 0.02	67.36	39.93 ± 0.04	67.89
BrC6	0.38 ± 0.03	65.45	0.39 ± 0.03	65.28	0.36 ± 0.04	65.67
ADG0–2	1.74 ± 0.04	68.31	1.72 ± 0.04	68.46	1.56 ± 0.06	68.56
ADG0–4	1.80 ± 0.05	62.92	1.91 ± 0.04	62.92	1.77 ± 0.07	62.57
ADG0–6	1.30 ± 0.06	64.18	1.33 ± 0.05	64.22	1.29 ± 0.08	64.30

BW0 = birth weight (g); BW2, BW4, and BW6 = body weight at 2, 4, and 6 weeks of age (g), respectively; BrC6 = breast circumference at 6 weeks of age (cm); ADG0–2, ADG0–4, and ADG0–6 = average daily gain at 0–2, 0–4, and 0–6 weeks of age, respectively; KKU1 = crossbred chicken between commercial broiler and Thai indigenous synthetic chickens (Kaimook e-san1); KKU2 = crossbred chicken between Kaimook e-san2 and Kaimook e-san1 (both of which are Thai indigenous synthetic chickens); ACC. = accuracy of the estimated breeding value.