Table 2.

Rate of conversion of selected amino acids in piglets during fasting and fed conditions

	Fasted, μmol·kg−1·h−1	Fed, μmol·kg−1·h−1	P
RcPhe to Tyr
μmol·kg−1·h−1	3.8 ± 0.4	6.9 ± 0.8	<0.0001
As%RaPhe	2.9 ± 0.2	4.0 ± 0.3	<0.0001
As%RaTyr
RcOrn to Cit
μmol·kg−1·h−1	13.6 ± 0.7	19.4 ± 2.0	<0.0001
%RaCit	18.6 ± 1.2	26.7 ± 1.8	<0.0001
%RaOrn	18.8 ± 0.9	21.5 ± 1.0	<0.0001
RcCit to Arg
μmol·kg−1·h−1	44.5 ± 9.9	62.1 ± 13.6	<0.0001
%RaArg	15.6 ± 2.6	15.6 ± 1.3	<0.915
%RaCit	55.4 ± 7.0	73.9 ± 6.3	<0.0001
RcArg to Arg
μmol·kg−1·h−1	8.3 ± 1.5	13.7 ± 5.6	<0.0003
%Ra	2.8 ± 0.4	3.5 ± 0.8	<0.0126

Values are means ± SE; n = 18, except for RcArg to Arg where n = 6. Rc, rate of conversion.