Optimal dietary standardized ileal digestible lysine level for pigs during the grower, early and late finisher periods

Table 5 Effect of dietary SID Lys level on the performance of pigs from 60 to 90 kg (Exp.2)

Item	SID Lys, %					SEM	P value
Item	0.63	0.71	0.79	0.87	0.95	SEM	ANOVA	Linear	Quadratic
Initial bodyweight, kg	57.25	57.85	57.32	56.05	57.73	0.40	0.67	0.77	0.73
Final bodyweight, kg	88.29^b	90.49^ab	93.17^a	92.58^ab	90.94^ab	0.58	0.05	0.05	0.02
Average daily gain, kg	0.89^c	0.93^bc	1.02^ab	1.04^a	0.95^bc	0.02	0	0	0
Average daily feed intake, kg	2.40^b	2.54^ab	2.52^ab	2.58^a	2.48^ab	0.02	0.02	0.07	0.01
Feed to gain ratio	2.71	2.72	2.47	2.47	2.62	0.03	0.02	0.04	0.05
Daily SID Lys intake, g	15.13	18.00	19.94	22.41	23.58	0.63	0	0	0.01
Lys efficiency for bodyweight	17.08^d	19.32^c	19.54^bc	21.52^b	24.88^a	0.57	0	0	0.04
Diarrhea rate, %	0	0	0	0	0

Abbreviations: SID standardized ileal digestible, Lys lysine, n = 5, SEM standard error of mean, Lys efficiency for bodyweight = Daily SID Lys intake (g)/ Average daily gain (kg)

ISSN: 1746-6148