. 2015 Nov 18;1(4):313–319. doi: 10.1016/j.aninu.2015.11.005

Table 8.

Effects of dietary leucine levels on the gene expression of mTOR, S6K1 and 4E-BP1 of broilers' jejunum at different days.

Item	Day	Group
Item	Day	1.37TM	1.77TM	2.17TM	2.57TM
mTOR	7	1.63 ± 0.15	1.58 ± 0.19	1.76 ± 0.07	1.50 ± 0.22
	14	1.79 ± 0.07^a	2.01 ± 0.08^b	2.51 ± 0.24^c	2.10 ± 0.10^b
	21	1.26 ± 0.10^a	1.37 ± 0.23^ab	1.88 ± 0.13^c	1.60 ± 0.23^bc
S6K1	7	2.17 ± 0.34	2.25 ± 0.46	1.99 ± 0.16	2.06 ± 0.20
	14	1.89 ± 0.20^a	2.13 ± 0.28^a	2.77 ± 0.29^b	2.19 ± 0.23^a
	21	1.93 ± 0.16^a	2.31 ± 0.30^a	3.00 ± 0.50^b	2.14 ± 0.26^a
4E-BP1	7	2.12 ± 0.25	2.02 ± 0.12	2.15 ± 0.25	2.18 ± 0.21
	14	2.72 ± 0.27^a	2.71 ± 0.45^a	3.55 ± 0.39^b	2.63 ± 0.62^a
	21	2.55 ± 0.43^a	3.18 ± 0.52^ab	3.56 ± 0.63^b	3.41 ± 0.48^ab

1.37TM = 1.37% leucine in the nutrient composition, etc; mTOR = mammalian target of rapamycin; S6K1 = p70 ribosomal protein S6 kinase 1; 4E-BP1 = eukaryotic translation initiation factor 4E binding protein 1.

^a,b,c Within a row, means with different superscripts differ significantly (P < 0.05).