. 2022 Sep 2;13:972041. doi: 10.3389/fphys.2022.972041

TABLE 6.

Influence of in ovo cysteine and lysine on performance broiler chickens.

Parameters	UI	DW	L Y	CY	CLH	CLL	SEM	p Value
Initial weight (g)	42.45^b	42.30^b	42.57^ab	43.40^a	42.65^ab	42.91^ab	0.094	0.0082
Final weight (g)	2760.0^c	2720.0^c	3180.0^ab	3137.0^b	2825.0^c	3285.0^a	31.137	0.0001
weight gain (g)	2717.55^c	2677.70^c	3137.42^ab	3093.59^b	2782.36^c	3242.09^a	31.109	0.0001
Feed intake (g)	5922.05^b	6086.78^b	6837.53^a	6725.45^a	5840.51^b	6746.69^a	68.385	0.0001
FCR	2.18	2.27	2.18	2.17	2.10	2.12	0.019	0.0890

^abc: Means value within the row bearing different superscript differ significantly (p< 0.05). UI, Un-injected eggs; DW, eggs injected with Distilled water; LY, Eggs injected 2 mg lysine; CY, Eggs injected 3.4 mg cysteine; CLH, Eggs injected mixture of 3.4 mg cysteine plus 2 mg lysine; CLL, Eggs injected mixture of 1.7 mg cysteine plus 1 mg lysine.