. 2022 Jun 30;101(9):102038. doi: 10.1016/j.psj.2022.102038

Table 7.

Live performance of Ross 708 male broilers fed reduced CP diets with moderate or high added Gly levels from 0 to 48 d post-hatch in experiment 1.¹^,²

Item	CTL	RCP	M Gly	H Gly	SEM	P-values
0 to 14 d
d 0 BW, kg/bird	0.039	0.039	0.039	0.039	0.0001	0.202
d 14 BW, kg/bird	0.380	0.388	0.393	0.381	0.0050	0.257
BWG, kg/bird	0.341	0.348	0.353	0.341	0.0050	0.279
FI, kg/bird	0.437	0.446	0.445	0.433	0.0050	0.193
FCR³, kg:kg	1.283	1.286	1.265	1.284	0.0090	0.342
0 to 28 d
d 28 BW, kg/bird	1.409^a	1.404^a,b	1.412^a	1.364^b	0.0113	0.016
BWG, kg/bird	1.369^a	1.365^a,b	1.373^a	1.324^b	0.0113	0.015
FI, kg/bird	1.880	1.909	1.896	1.867	0.0137	0.177
FCR³, kg:kg	1.376^b	1.401^a,b	1.387^b	1.419^a	0.0077	0.003
0 to 39 d
d 39 BW, kg/bird	2.573^a	2.575^a	2.571^a	2.476^b	0.0201	0.003
BWG, kg/bird	2.533^a	2.536^a	2.532^a	2.437^b	0.0200	0.003
FI, kg/bird	3.691^a,b	3.756^a	3.749^a	3.650^b	0.0236	0.009
FCR³, kg:kg	1.471^b	1.485^b	1.488^a,b	1.513^a	0.0067	0.001
0 to 48 d
d 48 BW, kg/bird	3.663^a	3.669^a	3.647^a	3.544^b	0.0260	0.006
BWG, kg/bird	3.623^a	3.630^a	3.607^a	3.506^b	0.0260	0.006
FI, kg/bird	5.563	5.644	5.606	5.518	0.0344	0.074
FCR³, kg:kg	1.548^b	1.569^a,b	1.565^a,b	1.588^a	0.0068	0.003

Abbreviations: BWG, body weight gain; CTL, control; FI, feed intake; H, high; M, moderate; RCP, reduced crude protein.

^a-b

Means within a row that do not share a common superscript were deemed different (P < 0.05) by a Tukey's multiple comparison test.

Values are least square means of 12 replicate pens.

The M Gly and H Gly diets had an overall tGly + Ser average of 100 or 112%, respectively, of the CTL diet and 110% and 124%, respectively, of the RCP diet.

Corrected for mortality.