Effect of dried Chlorella vulgaris and Chlorella growth factor on growth performance, meat qualities and humoral immune responses in broiler chickens

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Table 1 Effect of dried chlorella powder (DCP) and chlorella growth factor (CGF) on growth performance in broiler chickens

Item	NC¹	PC²	DCP			CGF		SEM³	p value
Item	NC¹	PC²	0.05 %	0.15 %	0.5 %	0.05 %	0.15 %	SEM³	p value
Initial BW⁴ (g/bird)	45.1	45.1	45.1	45.1	45.1	45.1	45.1	0.04	0.967
Final BW (g/bird)	1562^b	1645^a	1533^b	1619^a	1643^a	1569^b	1564^b	14.06	<0.001
BW gain, g/d/bird
1–21 days	24.0^b	25.5^a	23.9^b	25.3^a	25.7^a	24.1^b	24.2^b	0.32	<0.001
22–35 days	73.7^bc	77.8^a	72.2^c	76.3^ab	77.5^a	74.5^bc	73.8^c	0.77	<0.001
1–35 days	44.6^b	47.0^a	43.8^b	46.3^a	47.0^a	44.8^b	44.7^b	0.41	<0.001
Feed intake (g/d/bird)
1–21 days	38.8	40.1	39.3	40.2	41.0	39.4	39.6	0.58	0.197
22–35 days	142.9	144.9	143.8	146.2	144.3	139.8	141.8	1.73	0.215
1–35 days	81.7	83.3	82.3	83.8	83.1	80.8	81.7	0.77	0.072
Feed:gain
1–21 days	1.62	1.57	1.65	1.59	1.60	1.64	1.63	0.03	0.484
22–35 days	1.93^ab	1.86^b	1.99^a	1.92^ab	1.86^b	1.88^b	1.92^ab	0.03	0.021
1–35 days	1.83^ab	1.77^b	1.88^a	1.81^b	1.78^b	1.80^b	1.83^ab	0.02	0.011

Each value represents mean of five replicates per treatment
¹Negative control (non-medicated basal diet)
²Positive control (NC + virginiamycin 10 ppm)
³Pooled standard error of the mean
⁴Body weight
^a–cMean values with different superscripts within the same row differ significantly (p < 0.05)