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

Table 7 Effects of exogenous enzymes and diet on ileum 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	949.5^a	124.8^a	7.69^b	953.0 ^a	124.4 ^ab	7.66 ^ab
	BM	863.5 ^a	139.6^ab	6.31 ^ab	1,140.1^a	136.2^b	8.34 ^b
	AG	847.5 ^a	151.5^b	5.70 ^a	1,498.1^b	142.0 ^bc	10.56 ^c
	XG	965.7 ^a	139.8^ab	6.95 ^ab	1,043.4^a	138.5 ^bc	7.50 ^ab
PC	no	857.6 ^a	142.7^ab	6.14 ^a	1,156.8^a	101.6^a	11.62 ^c
	BM	1,318.4^b	124.7^a	10.58^c	1,054.1^a	149.3 ^bc	7.09 ^ab
	AG	913.6 ^a	133.3^ab	6.93^ab	1,094.3^a	165.0^c	6.63 ^ab
	XG	1,204.3 ^b	128.7 ^ab	9.32^c	1,007.2^a	192.7^d	5.43^a
Main effects
Enzyme	no	903.6^A	133.7	6.91^A	1,054.9 ^a	113.0^A	9.64 ^C
	BM	1,091.0^B	132.1	8.45^B	1,097.1 ^a	142.8^B	7.72^AB
	AG	880.5^A	142.4	6.32^A	1,296.2^b	153.4 ^BC	8.59^BC
	XG	1,084.8^B	134.2	8.14^B	1,025.3 ^a	165.6 ^C	6.47 ^A
Diet	NC	906.5 ^A	138.9	6.66 ^A	1,158.7 ^b	135.3^a	8.52^B
	PC	1,073.5 ^B	132.4	8.24^B	1,078.1 ^a	152.2^b	7.69 ^a
SEM		56.16	7.49	0.463	98.37	8.61	0.722
P -Value
Enzyme		<0.001	0.523	<0.001	0.038	<0.001	0.001
Diet		<0.001	0.223	<0.001	0.254	0.008	0.116
Enzyme × diet		<0.001	0.078	<0.001	0.032	0.001	<0.001

ISSN: 2049-1891