Table 4.

Per bird performance of Ross 308 broilers fed corn- or wheat-based diets ± 0.175% algae ingredient¹ for 42 d divided into 14 d starter, grower, and finisher periods.

Measure	Treatment				SEM	P-values2
	Corn control	Corn + Algae	Wheat control	Wheat + Algae		Diet	Algae	Diet × Algae
D 0 BW3, kg	0.04	0.04	0.04	0.04	0.0004	0.84	0.24	0.75
Starter (d 0–d 14)
BWG, kg	0.31b	0.31b	0.34a	0.32ab	0.009	0.007	0.27	0.02
FI, kg	0.40b	0.41ab	0.42a	0.41ab	0.008	0.27	0.76	0.02
FCR	1.33	1.33	1.25	1.29	0.01	<0.0001	0.04	0.11
Grower (d 14–d 28)
BWG, kg	0.90	0.92	1.01	0.98	0.02	<0.0001	0.78	0.11
FI, kg	1.45	1.45	1.53	1.48	0.02	0.002	0.18	0.13
FCR	1.62	1.59	1.52	1.51	0.02	<0.0001	0.16	0.64
Finisher (d28-d42)
BWG, kg	1.43	1.51	1.49	1.49	0.04	0.44	0.12	0.09
FI, kg	2.56	2.57	2.58	2.54	0.03	0.75	0.66	0.27
FCR	1.80a	1.69b	1.71b	1.71b	0.03	0.10	0.02	0.01
Overall (d 0–d 42)
BWG, kg	2.72c	2.81bc	2.94a	2.87ab	0.05	<0.0001	0.66	0.02
FI, kg	4.54	4.54	4.67	4.55	0.06	0.12	0.19	0.19
FCR	1.66a	1.60b	1.58b	1.58b	0.02	<0.0001	0.02	0.006

¹Data represent the per bird average calculated from 20 pens/ diet.

²Data in the same row with different letter (^abc) superscripts are significantly different, P ≤ 0.05.

³Abbreviations: BW, body weight; BWG, body weight gain; FI, feed intake; FCR, feed conversion rate.