Table 2. Comparison of serum chemical composition of broiler reared in conventional and animal welfare-certified farms

Serum composition	Conventional farm			Animal welfare-certified farm			Mean		SEM	p-value
Serum composition	1 (n=22)	2 (n=22)	3 (n=20)	1 (n=25)	2 (n=25)	3 (n=30)	Conventional farm	Animal welfare-certified farm	SEM	p-value
TC (mg/dL)	109.22	100.15	128.91	120.82	98.92	102.32	112.76	107.35	1.942	0.127
HDL (mg/dL)	105.87	90.07	113.43	113.26	96.77	104.51	103.12	104.83	1.503	0.414
LDL (mg/dL)	72.15	63.28	67.37	73.28	59.24	54.09	67.62^a	62.25^b	1.271	<0.050
TG (g/dL)	34.14	60.99	80.31	43.24	45.23	40.04	58.47^a	42.84^b	1.863	<0.001
Glucose (mg/dL)	168.49	189.81	181.29	199.69	120.29	160.06	179.86^a	160.01^b	4.215	<0.010
TP (g/dL)	3.58	3.76	3.47	3.16	3.57	2.69	3.60^a	3.14^b	0.055	<0.001
Albumin (g/dL)	1.08	1.07	1.12	1.08	1.06	0.95	1.09^a	1.03^b	0.012	<0.010
AST (U/dL)	360.12	352.75	339.61	406.02	374.94	342.59	350.83	374.52	6.705	0.075
ALT (U/dL)	2.44	2.69	1.73	2.79	2.18	2.68	2.29^b	2.55^a	0.052	<0.010

Means with different superscripts between conventional and animal welfare-certified farms are significantly different at p<0.05.
TC, total cholesterol; HDL, high-density lipoprotein cholesterol; LDL, low-density lipoprotein cholesterol; TG, triglyceride; TP, total protein; AST, aspartate aminotransferase; ALT, alanine aminotransferase.