Influence of starch sources and dietary protein levels on intestinal functionality and intestinal mucosal amino acids catabolism in broiler chickens

Table 6 Effects of dietary treatments on concentrations (nmol/L) of free non-essential amino acids and total free amino acids in plasma from the portal circulation (anterior mesenteric vein) at 35 d post-hatch^d

Treatment		Alanine	Aspartic acid	Asparagine	Glutamic acid	Glutamine	Glycine	Serine	Tyrosine	Total
Starch	Protein	Alanine	Aspartic acid	Asparagine	Glutamic acid	Glutamine	Glycine	Serine	Tyrosine	Total
Waxy rice	High	882	190^b	30	379	961	878^bc	589^a	263^b	4173
Waxy rice	Low	1163	158^ab	60	285	1098	869^bc	988^b	186^a	4807
Maize	High	799	173^ab	42	362	885	937^c	678^a	210^ab	4086
Maize	Low	884	128^a	95	262	953	646^a	629^a	220^ab	3818
Amylose	High	635	153^ab	22	284	664	607^a	626^a	195^ab	3186
Amylose	Low	1073	186^b	64	280	845	739^ab	704^a	260^ab	4150
SEM		51.23	6.93	7.76	12.36	44.17	32.13	38.26	26.18	380.5
Main effects: Starch
Waxy rice		1022	174	45	332	1030^c	873	789	224	4490^b
Maize		841	151	69	312	919^b	791	654	215	3952^ab
Amylose		854	170	43	282	755^a	673	665	227	3668^a
Protein
High		772^a	172	32^a	342^b	837	807	631	223	3815
Low		1040^b	157	73^b	276^a	966	751	774	222	4259
Significance (P-value)
Starch		0.208	0.273	0.289	0.155	0.032	0.008	0.169	0.887	0.013
Protein		0.006	0.256	0.008	0.003	0.122	0.235	0.034	0.986	0.045
Starch × Protein		0.275	0.043	0.816	0.113	0.849	0.002	0.022	0.037	0.060

^dValues are the mean and pooled standard error of the mean (SEM), n = 6 chicken/group
^a-cmeans within each group with different letter designations differ (P < 0.05)

ISSN: 2049-1891