Table 3.

Average ideal protein profiles as determined by the InraPorc and NRC models

Items	Growing pigs, 20–140 kg		Gestating sows		Lactating sows
	InraPorc	NRC	InraPorc	NRC	InraPorc	NRC
Met	30	29	28	28	30	26
Met + Cys	60	56	65	69	60	53
Thr	65	61	72	76	66	63
Trp	18	17	20	20	19	19
Val	70	65	75	74	85	85
Ile	55	52	65	55	60	56
Leu	100	101	100	95	115	113
Phe	50	60	60	57	60	54
Phe + Tyr	95	94	100	98	115	112
His	32	34	30	32	42	40
Arg	42	46	-	53	-	56

¹Expressed as a percentage of the SID Lys requirement. See [15,25] for the InraPorc model for growing pigs and sows, respectively, and [16] for the NRC model.