Table 6.

Biochemical and hormonal parameters with reference to different rearing systems and seasons.

Parameter	Rearing System			Season		SEM	P Value
	EXT	SI	INT	WIN	SUM		RS	S	RS×S
Biochemical profile
Glucose (mg/dL)	45.00a	50.92b	59.50c	52.72	50.89	0.85	<0.001	0.060	0.970
Total protein (g/dL)	6.79a	7.05a	7.63b	7.33	6.98	0.06	<0.001	<0.001	0.814
Albumin (g/dL)	3.01a	3.85b	4.34c	4.01	3.45	0.08	<0.001	<0.001	0.761
Globulin (g/dL)	3.78b	3.20a	3.29a	3.32	3.53	0.06	<0.001	0.065	0.557
Cholesterol	48.54a	51.33a	82.79b	62.56	59.22	1.94	<0.001	0.003	0.910
BUN (mg/dL)	18.54	19.08	18.75	17.72	19.86	0.32	0.755	0.009	0.935
Creatinine (g/dL)	2.12b	2.08a	1.56a	1.76	2.08	0.05	<0.001	<0.001	0.564
Uric acid (mg/dL)	0.37c	0.22b	0.15a	0.21	0.28	0.02	<0.001	<0.001	0.487
AST (IU/L)	110.38b	102.79b	85.00a	89.69	109.08	2.15	<0.001	<0.001	0.224
ALT (IU/L)	40.21c	35.54b	31.58a	33.06	38.50	0.83	<0.001	<0.001	0.858
Calcium (mg/dL)	7.57a	7.87a	8.66b	8.21	7.85	0.10	<0.001	0.048	0.456
Phosphorous (mg/dL)	4.28a	4.48a	5.46b	4.90	4.58	0.08	<0.001	0.006	0.772
Hormonal profile
T3 (ng/mL)	1.55a	2.04b	2.89c	2.25	2.07	0.08	<0.001	0.018	0.250
T4 (ng/mL)	45.75a	50.38b	56.58c	53.42	48.39	0.75	<0.001	<0.001	0.140
Cortisol (ng/mL)	9.55c	8.05b	6.41a	6.06	9.95	0.32	<0.001	<0.001	0.034

^abc Rows bearing different superscripts differ significantly.

BUN - Blood urea nitrogen, AST - Aspartate amino transferase, ALT - Alanine amino transferase, T₃ - Triiodothyronine, T4 - Thyroxine, Ext - Extensive, SI - Semi intensive, I - Intensive, SEM - Standard error of mean, T - Time of recording, RS - Rearing system, S - Season, P Val - P values.