Table 4.

Effect of limestone particle size and dietary potassium (K) on wooden breast (WB) and white striping (WS) scores of broilers at 35 days of age.

Limestone1,2	Potassium1,3	Wooden breast	White striping
Fine		2.59y	2.09
Coarse		3.00x	2.12
	K–	2.74	2.03
	K+	2.84	2.19
Fine	K–	2.62	1.93
Fine	K+	2.56	2.25
Coarse	K–	2.85	2.13
Coarse	K+	3.12	2.12
	SEM4	0.228	0.144
		(Probability > F)
Limestone		0.08	0.81
Potassium		0.66	0.29
Limestone × Potassium		0.47	0.27

^x,yMeans within a column lacking a common superscript differ significantly (P < 0.10).

¹Main effect means calculated using 64 broilers at 35 days of age.

²Limestone particle size (starter and grower); Fine (0.2 mm) and coarse (0.9 mm).

³Potassium carbonate (starter and grower); (K–) basal levels of K; (K+) 0.20% added K.

⁴SEM, Standard error of mean.