. 2023 Feb 10;102(5):102571. doi: 10.1016/j.psj.2023.102571

Table 7.

Effect of strain¹ and target weight on breast and tender myopathies of male broilers.

Treatment	WT²	TF³	WB⁴	WS⁵	SM⁶
Strain	WT²	TF³	WB⁴	WS⁵	SM⁶
SYA	0.43^a	0.25^ab	0.91^b	0.85	0.09
SYB	0.23^b	0.18^b	0.93^b	0.83	0.08
HYA	0.47^a	0.23^ab	1.23^a	0.95	0.14
HYB	0.31^b	0.27^a	1.04^b	0.82	0.07
SEM	0.03	0.02	0.05	0.04	0.02
Target weight (g)
2,043	0.20^b	0.19^ab	0.46^c	0.40^c	0.11^abc
2,497	0.14^b	0.23^ab	0.74^b	0.65^b	0.21^a
2,951	0.09^b	0.24^ab	0.91^b	0.81^b	0.17^ab
3,405	0.56^a	0.30^a	1.27^a	1.05^a	0.06^bc
3,859	0.54^a	0.26^ab	1.42^a	1.19^a	0.03^c
4,313	0.63^a	0.18^b	1.38^a	1.07^a	0.00^c
SEM	0.04	0.03	0.06	0.05	0.03
P-values
Strain	<0.0001	0.0440	0.0002	0.0759	0.3007
Target weight (g)	<0.0001	0.0336	<0.0001	<0.0001	<0.0001
Interaction	0.5462	0.0019	0.0104	0.3437	0.5005

Abbreviations: HYA, high yielding A, HYB, high yielding B; SYA, standard yielding A, SYB, standard yielding B.

Woody-like tender. Scored on a numeric scale from 0 to 2 with 0.5 increments.

Feathered tender. Scored on a numeric scale from 0 to 2 with 0.5 increments.

⁴

Woody breast. Scored on a numeric scale from 0 to 3 with 0.5 increments.

⁵

White striping. Scored on a numeric scale from 0 to 3 with 0.5 increments.

⁶

Spaghetti meat. Absence or presence of fraying throughout the Pectoralis major.

^a-c

Means without a common superscript were determined to be significantly different (P < 0.05) by a Tukey's HSD test.