. 2019 Dec 17;98(12):6586–6592. doi: 10.3382/ps/pez464

Table 2.

Factors affecting carcass composition for Ross 308 broiler parents at 62 wk (434 D) of age and broilers at 37 D of age.

Item		Number	Live weight (g)	Carcass weight (g)	Carcass yield (%)¹	Breast (g)	Breast (%)²	Leg (g)	Leg (%)²	Wings (g)	Wings (%)²	Back (g)	Back (%)²	Shoulder (g)	Shoulder (%)²
Stock effect
Parent stock		30	4,763^A	3,709^A	77.47^A	1159^A	24.38^B	458^A	24.35^A	167^A	3.49^B	458^A	9.80^A	178^A	3.76^A
Broiler stock		30	2,056^B	1,530^B	74.36^B	547^B	26.55^A	168^B	23.24^B	77^B	3.76^A	168^B	8.15^B	69^B	3.37^B
Sex effect
Male		30	4,036^A	3,167^A	77.32^A	1,002^A	25.29	1046^A	25.14^A	150^A	3.76^A	348^A	8.53^B	144^A	3.49
Female		30	2,783^B	2,077^B	74.51^B	704^B	25.65	616^B	22.44^B	95^B	3.49^B	279^B	9.42^A	103^B	3.64
Interaction effect
Stock	Sex	15
Parent	Male	15	5,832	4,657	79.85	1410	24.12	1572	27	215	3.69	507	8.66	214	3.66
	Female	15	3,694	2,762	74.87	908	24.65	798	21.69	120	3.29	410	10.94	142	3.86
Broiler	Male	15	2,240	1,677	74.80	594	26.45	520	23.29	85	3.82	189	8.4	74	3.31
	Female	15	1,872	1,383	73.92	500	26.65	434	23.19	69	3.7	148	7.9	64	3.43
SEM			92	74	0.70	30	0.45	23	0.35	3	0.04	19	0.38	6	0.12
P- value
Stock			<0.0001	<0.0001	0.0002	<0.0001	<0.0001	<0.0001	0.0056	<0.0001	0.0002	<0.0001	0.0002	<0.0001	0.0038
Sex			<0.0001	<0.0001	0.0005	<0.0001	0.4360	<0.0001	<0.0001	<0.0001	0.0003	0.0016	0.0495	<0.0001	0.2158
Stock x Sex			<0.0001	<0.0001	0.0118	<0.0001	0.7228	<0.0001	<0.0001	<0.0001	0.0349	0.1856	0.0014	<0.0001	0.6769

SEM: standard error of the mean. In the same column, and within the same effect, means with different superscripts differ significantly (P < 0.05).

^¹

Dressing percentage = (carcass weight/Live weight)*100; ² Percentage from live weight.