Dietary L-citrulline supplementation modulates nitric oxide synthesis and anti-oxidant status of laying hens during summer season

Table 4 Effect of dietary citrulline supplementation on plasma metabolites of laying hens at 32 and 42 weeks of age

	Control	0.25% L-Cit	0.50% L-Cit	1.00% L-Cit	P-value
4^th week
TG, mmol/ L	2.25 ± 0.32	1.58 ± 0.33	2.14 ± 0.39	2.18 ± 0.44	0.570
TCHO, mmol/ L	6.64 ± 0.65	7.11 ± 0.80	5.86 ± 0.60	6.16 ± 0.30	0.510
GLU, mmol/ L	12.46 ± 0.41	12.12 ± 0.32	12.07 ± 0.34	12.54 ± 0.54	0.802
TP, g/L	48.33 ± 2.78	43.77 ± 2.73	53.38 ± 7.83	47.88 ± 7.00	0.690
UA, μmol/ L	169.83 ± 26.66	103.00 ± 21.25	108.17 ± 11.13	126.50 ± 36.50	0.270
AST, U/L	198.67 ± 20.81	213.17 ± 15.85	176.50 ± 11.17	185.50 ± 6.67	0.336
8^th week
TG, mmol/ L	2.85 ± 0.28^a	1.87 ± 0.24^b	2.67 ± 0.31^ab	1.94 ± 0.31^b	0.045
TCHO, mmol/ L	4.14 ± 0.40	3.59 ± 0.33	4.39 ± 0.30	4.08 ± 0.29	0.401
GLU, mmol/ L	12.34 ± 0.35	12.39 ± 0.27	11.82 ± 0.63	12.40 ± 0.38	0.741
TP, g/L	49.20 ± 4.59	47.15 ± 1.63	41.20 ± 2.97	44.00 ± 2.39	0.296
UA, μmol/ L	151.75 ± 19.91	156.50 ± 24.15	179.00 ± 9.54	153.88 ± 22.05	0.747
AST, U/L	155.50 ± 13.58	148.63 ± 6.46	156.75 ± 11.68	166.63 ± 11.04	0.716

Data were presented as mean ± SEM, where TG Triglyceride, TCHO Total Cholesterol, GLU Glucose, TP Total protein, UA Uric acid and AST Aspartate aminotransferase. Means with different superscripts within a row differ significantly (P < 0.05) (n = 8)

ISSN: 2049-1891