Table 3.

Effects of the increasing dietary level of Cyberlindnera jadinii yeast protein on the growth performance of broiler chickens during the starter (day 0–10), grower (day 11–30), and overall (day 0–30) periods¹.

Item, g/bird	Diet2				SEM3	P-value	Linear
	Control	CJ10	CJ20	CJ30
Start BW	42.1	42.2	41.6	41.8	0.38	0.647	0.378
Final live BW	1,987a	1,935a	1,824b	1,699b	36.11	<0.001	<0.001
BW gain
Starter period	246a	239a,b	226a,b	188b	13.67	0.036	0.007
Grower period	1,699a	1,653a	1,555b	1,469b	24.89	<0.001	<0.001
Overall	1,944a	1,892a	1,782b	1,657b	36.14	<0.001	<0.001
Feed intake
Starter period	275	288	296	254	12.31	0.124	0.334
Grower period	2,310a	2,257a	2,150b	2,075b	32.61	<0.001	<0.001
Overall	2,586a	2,546a,b	2,446a,b	2,329b	38.94	0.001	<0.001
FCR4
Starter period	1.12b	1.21a,b	1.32a	1.36a	0.04	0.004	<0.001
Grower period	1.36	1.37	1.38	1.41	0.02	0.183	0.038
Overall	1.33b	1.35a,b	1.37a,b	1.41a	0.02	0.027	0.004
Water intake5 (mL/bird, grower)	3,742	3,887	3,577	3,402	145.82	0.248	0.111
Water:feed intake (grower)	1.57	1.60	1.54	1.57	0.04	0.791	0.820
Carcass weight6	1,225a	1,188a	1,115b	1,030c	10.57	<0.001	<0.001
Mortality rate (%)	2.0	3.6	4.4	5.6	1.79	0.561	0.168

^a–cValues in the same row with different superscripts differ (P < 0.05).

¹Values are presented as least-square means, (n = 20).

²Control diet based on soybean meal, wheat, and oats (control); diets with 10, 20 and 30% crude protein from C. jadinii (CJ10, CJ20, and CJ30, respectively).

³SEM: pooled standard error of the means.

⁴FCR: feed conversion ratio (gram feed per gram gain).

⁵Water consumption calculated from days 8 to 28 (mL/bird); n = 10.

⁶Defeathered, eviscerated.