Table 3.

Effects of 500 FTU/kg phytase on apparent amino acid digestibility coefficients in four small intestinal segments [adapted from Truong et al. [94].

Amino Acid	Proximal Jejunum			Distal Jejunum			Proximal Ileum			Distal Ileum
	0 FTU/kg	500 FTU	Response	0 FTU/kg	500 FTU	Response	0 FTU/kg	500 FTU	Response	0 FTU/kg	500 FTU	Response
Arginine	0.609	0.798	31.0%	0.770	0.869	12.9%	0.872	0.922	5.73%	0.901	0.942	4.55%
Histidine	0.481	0.723	50.3%	0.678	0.813	19.9%	0.824	0.889	7.89%	0.862	0.915	6.15%
Isoleucine	0.455	0.700	53.9%	0.656	0.789	20.3%	0.797	0.870	9.16%	0.839	0.900	7.27%
Leucine	0.474	0.700	47.7%	0.664	0.792	19.3%	0.817	0.881	7.83%	0.856	0.910	6.31%
Lysine	0.684	0.848	24.0%	0.799	0.890	11.4%	0.867	0.923	6.46%	0.881	0.934	6.02%
Methionine	0.700	0.850	21.4%	0.843	0.917	8.78%	0.920	0.957	4.02%	0.948	0.970	2.32%
Phenylalanine	0.509	0.720	41.5%	0.682	0.803	17.7%	0.820	0.885	7.93%	0.860	0.914	6.28%
Threonine	0.394	0.681	72.8%	0.588	0.758	28.9%	0.733	0.836	14.1%	0.767	0.861	12.3%
Valine	0.403	0.664	64.8%	0.613	0.758	23.7%	0.774	0.849	9.69%	0.813	0.878	8.00%
Alanine	0.465	0.699	50.3%	0.656	0.788	20.1%	0.801	0.870	8.61%	0.831	0.895	7.70%
Aspartate	0.429	0.698	62.7%	0.643	0.787	22.4%	0.776	0.861	11.0%	0.817	0.888	8.69%
Glutamate	0.554	0.762	37.6%	0.731	0.844	15.5%	0.851	0.907	6.58%	0.884	0.929	5.09%
Glycine	0.390	0.675	73.1%	0.587	0.756	28.8%	0.745	0.839	12.6%	0.787	0.868	10.3%
Proline	0.415	0.685	65.1%	0.621	0.778	25.3%	0.793	0.869	9.58%	0.837	0.898	7.29%
Serine	0.455	0.704	54.7%	0.639	0.783	22.5%	0.776	0.861	11.0%	0.819	0.890	8.67%
Tyrosine	0.277	0.605	118%	0.800	0.712	42.4%	0.717	0.830	15.8%	0.778	0.875	12.5%
Mean	0.481	0.720	49.7%	0.667	0.802	20.2%	0.805	0.878	9.07%	0.843	0.904	7.24%