Effects of exogenous enzymes and dietary energy on performance and digestive physiology of broilers

Table 6 Effects of exogenous enzymes and diet on duodenum morphology in broilers

Diet	Enzyme	21 d			42 d
		Villus length, μm	Crypt depth, μm	V/C	Villus length, μm	Crypt depth, μm	V/C
NC	no	1,547.3^ab	151.0 ^c	10.37 ^a	1,509.3^a	152.3	9.99 ^a
	BM	1,618.2^ab	150.8 ^c	10.81^ab	1,632.4^ab	160.6	10.31^ab
	AG	1,373.8^a	122.7^a	11.14^ab	1,609.5^ab	144.9	11.15 ^ab
	XG	1,582.8^ab	149.0^bc	10.74^ab	1,785.1^b	162.1	11.32 ^ab
PC	no	1,482.6^ab	143.2^bc	10.40 ^a	1,671.0^ab	162.8	10.50 ^ab
	BM	1,490.9^ab	135.9^abc	11.03^ab	1,666.6 ^ab	159.6	10.51^ab
	AG	1,654.5^b	122.5^a	13.66^c	1,781.5 ^b	147.9	12.31^b
	XG	1,633.9^ab	130.0^ab	12.60 ^bc	1,499.7 ^a	143.9	10.55 ^ab
Main effects
Enzyme	no	1,515.0	147.1^b	10.38 ^a	1,590.1	157.6	10.25
	BM	1,554.5	143.3^b	10.92 ^a	1,649.5	160.1	10.41
	AG	1,514.1	122.6^a	12.39^b	1,695.5	146.4	11.73
	XG	1,608.4	139.5^b	11.67 ^ab	1,642.4	152.9	10.93
Diet	NC	1,530.6	143.4 ^b	10.76^a	1,634.1	155.0	10.69
	PC	1,565.5	132.9^a	11.92^b	1,654.7	153.5	10.97
SEM		82.42	6.33	0.677	61.41	9.37	0.683
P -Value
Enzyme		0.631	0.002	0.028	0.408	0.489	0.145
Diet		0.553	0.024	0.021	0.637	0.830	0.571
Enzyme × diet		0.084	0.475	0.197	0.002	0.481	0.562

ISSN: 2049-1891