. 2020 Nov 19;100(3):100840. doi: 10.1016/j.psj.2020.10.073

Table 5.

Effects of raising system and narasin on gastrointestine development of broilers.

Treatment		Relative weight (%)					Intestine weight length ratio (g/cm)
Treatment		Gizzard	Proventriculus	Duodenum	Jejunum	Ileum	Duodenum	Jejunum	Ileum
Main effect
System	FL	1.19^a	0.26^b	0.65^a	1.30^a	0.99^a	0.53^a	0.42^a	0.31^a
	MC	0.93^b	0.39^a	0.48^c	0.98^c	0.74^b	0.47^b	0.34^b	0.27^b
	PN	0.87^b	0.34^a	0.57^b	1.10^b	0.94^a	0.51^a,b	0.41^a	0.33^a
Narasin	+	1.00	0.33	0.55	1.12	0.89	0.48^b	0.38	0.30
Narasin	−	0.99	0.32	0.58	1.14	0.90	0.53^a	0.40	0.30
P-value	System	<0.001	<0.001	<0.001	<0.001	<0.001	0.026	<0.001	<0.001
	Narasin	0.881	0.757	0.219	0.679	0.921	0.004	0.077	0.543
	Interaction	0.240	0.724	0.118	0.031	0.697	0.210	0.419	0.879

^a,bWithin a row, numbers with different superscripts differ statistically at P < 0.05.

Abbreviations: FL, flooring litter rearing; MC, multilayer cage rearing; PN, plastic net rearing.

n = 10 replications