. 2020 Feb 24;99(4):2033–2040. doi: 10.1016/j.psj.2019.11.033

Table 3.

Characteristics of broiler legs of 3 different strains fed with 3 nutritional densities and slaughtered at different ages.

Item	Leg weight	Leg WPR	Leg fat	Leg collagen
Effect of strain
021 Embrapa	249^a	3.675^a	11.63^c	1.29^a
A	303^b	3.707^b	10.15^b	1.41^b
B	325^c	3.761^c	9.43^a	1.50^b
SEM	2.41	0.0086	0.103	0.0312
Effect of nutritional density
Regular	292	3.724	11.3^c	1.82^c
Medium	296	3.703	10.6^b	1.31^b
High	289	3.716	9.3^a	1.06^a
SEM	2.41	0.0086	0.103	0.0312
Effect of age
28	166^a	3.71^b,c	9.78^a	1.21^a
35	224^b	3.74^c,d	10.23^a,b	1.13^a
42	289^c	3.76^d	10.33^b	1.43^b
49	283^d	3.66^a	10.66^b,c	1.72^c
56	400^e	3.70^a,b	11.03^c	1.50^b
SEM	3.11	0.0111	0.132	0.0403
P value
Strain	<0.0001	<0.0001	<0.0001	<0.0001
Density	0.1578	0.2047	<0.0001	<0.0001
Age	<0.0001	<0.0001	<0.0001	<0.0001
Strain:Density	0.3055	0.7877	0.3752	<0.0001
Strain:Age	<0.0001	<0.0001	0.0046	<0.0001
Density:Age	0.8070	0.0740	0.2834	0.1506
Strain:Density:Age	0.8389	0.0812	0.1173	<0.0001

^a-eMean values followed by different lowercase letters in the column indicate significant difference (P < 0.05) between effects.

Abbreviations: SEM, standard error of the mean; WPR, water protein ratio.