Table 4.

Urinary purine derivatives, creatinine concentrations, and PDC index in spot urine of lambs

Dietary treatments	Sampling period	Total PD	Allantoin	Uric acid	Xanthine+hypoxanthine	Creatinine	PDC index
C:F 40:60	08:00 to 09:30	2.94	2.52	0.36	0.057	2.20	29.52
High UDP	14:00 to 15:30	3.38	2.85	0.44	0.089	2.79	26.76
	20:00 to 21:30	4.04	3.29	0.60	0.15	2.44	36.57
C:F 40:60	08:00 to 09:30	3.30	2.84	0.39	0.067	2.68	27.35
Low UDP	14:00 to 15:30	2.89	2.51	0.34	0.043	2.50	25.68
	20:00 to 21:30	3.08	2.58	0.45	0.046	2.22	30.82
C:F 60:40	08:00 to 09:30	4.15	3.31	0.73	0.11	2.83	32.73
High UDP	14:00 to 15:30	4.51	3.73	0.71	0.074	2.69	37.42
	20:00 to 21:30	4.60	3.73	0.78	0.081	2.70	38.03
C:F 60:40	08:00 to 09:30	6.38	5.42	0.81	0.26	2.72	52.97
Low UDP	14:00 to 15:30	5.26	4.58	0.60	0.093	2.88	41.25
	20:00 to 21:30	5.53	4.56	0.87	0.20	2.68	46.60
SEM		0.25	0.23	0.04	0.006	0.09	3.07
p-value	Time	0.13	0.45	0.33	0.10	0.77	0.23
	C:F	0.032	0.041	0.022	0.26	0.78	0.037
	UDP	0.25	0.17	0.58	0.46	0.47	0.084