Effect of supplemental glycerol monolaurate and oregano essential oil blend on the growth performance, intestinal morphology, and amino acid digestibility of broiler chickens

Table 4 Effects of supplemental GLM and oregano EO blend on the broilers’ blood biochemical parameters and immune status:

Parameters	T1	T2	T3	T4	SEM	Regression *
						Linear	Quadratic	Cubic
TC (mg/dl)	223.78	238.98	220.98	216.33	2.29	0.18	0.15	0.11
TG (mg/dl)	100.03	90.37	147.07	158.01	5.73	0.03	0.63	0.62
HDL(mg/dl)	53.95	55.17	60.30	48.32	3.54	0.68	0.31	0.45
LDL(mg/dl)	153.66	160.23	170.29	183.02	8.65	0.23	0.86	0.99
ALP (U/L)	35.99^b	46.34^ab	53.73^ab	72.36^a	6.75	0.03	0.70	0.76
IgM (mg/dl)	110.66	92.95	86.46	62.90	9.89	0.05	0.84	0.66
C3 (mg/dl)	74.66	80.74	100.45	100.11	4.55	0.26	0.85	0.66
IL10 (pg/ml)	0.12	0.15	0.17	0.13	0.01	0.71	0.15	0.67

^{a, b}Means within the same row carrying different superscripts are significantly different at (P < 0.05). TC: total cholesterol, TG: triglycerides, HDL: high-density lipoprotein, LDL: Low-density lipoprotein, C3: Complement 3, IL10: interleukin 10. T1: Control group; T2, T3, and T4: basal diet supplemented with 0.15 or 0.45 or 0.75% mixture of GLM and EO, respectively. * Regression is significant at P < 0.05

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