Table 7.

Frequency of occurrence of different scores of white striping (WS) in different treatments^1,2.

AA density3	Stocking density4	0 score		1 score		2 score
		Total birds	%	Total birds	%	Total birds	%
Norm	High	5	27.7	12	66.8	1	5.5
Norm	Low	6	33.3	11	61.2	1	5.5
10%Low	High	9	50.0	8	44.5	1	5.5
10%Low	Low	8	44.3	9	50.2	1	5.5
20%Low	High	11	61.2	6	33.2	1	5.7
20%Low	Low	10	55.5	7	38.8	1	5.7
SEM			18.6		14.9		7.9
AA density
Norm		11	30.5	23	64.0	2	5.5
10%Low		17	47.2	17	47.3	2	5.5
20%Low		21	58.3	13	36.0	2	5.7
SEM			12.6		12.7		5.3
Stocking density
High		25	46.3	26	48.2	3	5.6
Low		24	44.4	27	50.1	3	5.6
SEM			7.2		8.2		3.01
P values
AA density			0.084		0.086		0.999
Stocking density			0.863		0.864		0.999
AA density × stocking density			0.481		0.463		0.999
AA density linear			0.043		0.044		0.976
AA density quadratic			0.811		0.819		0.986

¹Means represent 6 replicates with 3 randomly selected birds per replicate and 18 birds per treatment.

²Score 0 = normal (no white striping), score 1 = moderate WS (white lines < 1-mm thick), score 2 = severe WS (white lines > 1-mm thick).

³Norm = recommended amino acid (AA) density; 10%low = 10% lower than norm AA density; 20%low = 20% lower than norm AA density.

⁴High = 35 kg of body weight/m²; low = 26 kg of body weight/m² of stocking density.