Table 6. Effects of Kluyveromyces marxianus on intestinal morphology¹ of broilers (21 d of age).

Dose (g/kg)	Jejunum			Ileum
	VH	CD	VCR	VH	CD	VCR
0	938.16	140.57	7.03	574.59	97.37	6.30
0.25	912.11	145.67	6.72	613.58	106.01	6.08
0.50	895.90	131.04	7.20	595.66	99.03	6.23
1.0	975.95	142.51	7.39	621.17	106.91	6.24
1.5	1014.85	147.69	7.33	666.40	104.74	6.89
2.0	1022.13	140.05	7.72	643.50	95.25	7.14
2.5	981.88	133.02	7.71	659.47	109.27	6.55
SEM	23.258	3.497	0.149	12.763	2.269	0.131
P-value
Linear	0.137	0.745	0.043	0.033	0.604	0.042
Quadratic	0.289	0.768	0.131	0.085	0.874	0.111

n = 8 replicates per group.

¹ VH, villus height (μm); CD, crypt depth (μm); VCR, the ratio of VH:CD.