Table 5.

Effects of L-arginine and N-carbamoylglutamic acid in development of Japanese White rabbits ileum and jejunum tissue

Age	Test items	Control	L-arginine	N-carbamoylglutamic acid
Jejunum
Day 65	VH	656.5±63.1a	795.6±90.7b	807.5±71.5b
	CD	67.8±13.6 a	78.0±21.5b	81.5±27.5b
	V/C index	10.1±2.3	10.8±2.8	10.3±4.6
Day 85	VH	711.2±124.9a	952.8±162.5b	889.3±101.9ab
	CD	85.3±19.9	88.7±21.0	96.1±31.1
	V/C index	9.3±2.7	11.1±2.2	10.1±3.2
Ileum
Day 65	VH	420.6±53.4a	456.8±62.7ab	469.4±81.7b
	CD	77.2±15.9a	72.2±21.4a	54.6±16.6b
	V/C index	5.7±1.7a	6.7±1.5a	9.35±3.4b
Day 85	VH	431.3±88.1a	510.5±70.5b	521.1±47.9b
	CD	90.2±23.5a	75.1±18.8b	78.3±21.5b
	V/C index	5.0±1.5	7.3±2.5	7.6±1.5

VH, villus height (μm); CD, crypt depth (μm); V/C index, villus height/crypt depth.

Significant differences in the same line are represented with different lower-case letters (p<0.05).