Table 4 Effect of supplementing LEO (free and nanoencapsulated) on carcass traits of broiler chicken.

Parameter¹ (g)	Dietary treatments²							SEM	P-value
Parameter¹ (g)	CN	AB	CS	LEO_F200	LEO_F400	LEO_N200	LEO_N400	SEM	P-value
PSLW	1926.52^e	1998.11^c	1957.00^de	1989.27^cd	1815.70^f	2043.48^b	2077.63^a	18.06	< 0.001
Dressed weight	1361.66^e	1425.25^c	1385.95^d	1425.31^c	1276.62^f	1473.35^b	1500.26^a	15.61	< 0.001
Breast weight	375.97^c	412.22^b	383.85^bc	409.52^b	328.65^d	422.13^a	443.32^a	7.18	0.024
Thigh weight	185.17^cd	209.59^abc	191.65^bcd	208.48^abc	167.10^d	218.85^ab	225.87^a	4.79	0.039
Neck weight	54.49	56.66	55.30	56.83	53.01	57.63	58.89	1.35	0.168

Means in a row with different superscripts differ significantly (P < 0.05).
¹PSLW, Pre-slaughter live weight.
²CN (Control)-fed basal diet only; AB (Antibiotic)-basal diet + 10 mg/kg Enramycin; CS (Chitosan)-basal diet + 300 mg/kg chitosan nanoparticles; LEO_F200 (basal diet + 200 mg/kg free LEO); LEO_F400 (basal diet + 400 mg/kg free LEO); LEO_N200 (basal diet + 200 mg/kg nanoencapsulated LEO) and LEO_N400 (basal diet + 400 mg/kg nanoencapsulated LEO).

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