Table 5. Performance characteristics of broiler chicken fed phytogenic feed supplement in a hot dry climate

Variable	B1	B2	B3	B4	SEM	p-value
Starter phase (0–21 d)
Initial body weight (g/bird)	61.20	64.00	63.60	63.05	1.06	0.00
Body weight at 21 d (g/bird)	894.07^c	963.89^a	909.28^b	941.23^a	12.41	0.00
Average weight gain (g/bird)	832.86^b	899.89^a	845.67^ab	878.18^a	12.09	0.00
Average feed intake (g/bird/day)	97.21^c	101.49^b	101.87^ab	104.33^a	0.68	0.02
Feed conversion ratio	2.53^a	2.37^b	2.54^a	2.50^a	0.04	0.00
Mortality	0.00	0.00	0.00	0.00	0.00	0.00
Finisher phase (21−49 d)
Body weight at 21 d (g/bird)	894.07^c	963.89^a	909.28^b	941.23^a	12.41	0.01
Body weight at 49 d (g/bird)	2,428.94^b	2,689.03^a	2,528.01^ab	2,650.72^a	34.53	0.00
Average weight gain (g/bird)	1,534.87^b	1,789.14^a	1,682.34^ab	1,772.55^a	36.06	0.01
Average feed intake (g/bird/day)	143.15^a	132.71^ab	123.54^b	138.53^ab	3.15	0.00
Feed conversion ratio	2.63^a	2.08^b	2.06^b	2.19^b	0.07	0.03
Mortality	11.67^a	7.50^b	7.50^b	2.78^c	2.20	0.02
Overall (49 d)
Initial body weight (g/bird)	61.20	64.00	63.60	63.05	1.06	0.00
Body weight at 49 d (g/bird)	2,428.94^b	2,689.03^a	2,528.01^ab	2,650.72^a	34.53	0.02
Average weight gain (g/bird)	2,367.74^b	2,625.03^a	2,464.41^ab	2,587.68^a	34.09	0.03
Average feed intake (g/bird/day)	113.48^b	123.46^a	119.23^a	123.87^a	1.81	0.00
Feed conversion ratio	2.58^a	2.23^b	2.27^b	2.34^b	0.03	0.01
Mortality	11.67^a	7.50^b	7.50^b	2.78^c	2.20	0.02

B1, diet without leaf meal; B2, diet with Moringa oleifera; B3, diet with Phyllanthus amarus; B4, diet with Viscum album.
Means with different superscripts in the same row significantly differ at p < 0.05.