. 2020 Mar 25;99(6):3168–3178. doi: 10.1016/j.psj.2020.01.023

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
Item, g/bird	Control	CJ10	CJ20	CJ30	SEM³	P-value	Linear
Start BW	42.1	42.2	41.6	41.8	0.38	0.647	0.378
Final live BW	1,987^a	1,935^a	1,824^b	1,699^b	36.11	<0.001	<0.001
BW gain
Starter period	246^a	239^a,b	226^a,b	188^b	13.67	0.036	0.007
Grower period	1,699^a	1,653^a	1,555^b	1,469^b	24.89	<0.001	<0.001
Overall	1,944^a	1,892^a	1,782^b	1,657^b	36.14	<0.001	<0.001
Feed intake
Starter period	275	288	296	254	12.31	0.124	0.334
Grower period	2,310^a	2,257^a	2,150^b	2,075^b	32.61	<0.001	<0.001
Overall	2,586^a	2,546^a,b	2,446^a,b	2,329^b	38.94	0.001	<0.001
FCR⁴
Starter period	1.12^b	1.21^a,b	1.32^a	1.36^a	0.04	0.004	<0.001
Grower period	1.36	1.37	1.38	1.41	0.02	0.183	0.038
Overall	1.33^b	1.35^a,b	1.37^a,b	1.41^a	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	1,225^a	1,188^a	1,115^b	1,030^c	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).

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

Control 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).

SEM: pooled standard error of the means.

⁴

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

⁵

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

⁶

Defeathered, eviscerated.