Table 1.

Effect of the in ovo inoculated MV-alone (Marek's vaccine with not addition of probiotic) and GalliPro Hatch (GH) at 10⁵ cfu GH (MV + 10⁵ cfu GH/50 μL), 10⁶ cfu GH (MV + 10⁶ cfu GH/50 μL), and 10⁷ cfu GH (MV + 10⁷ cfu GH/50 μL) on hatch parameters.¹

Hatch parameter	MV alone	105 cfu GH	106 cfu GH	107 cfu GH	P value	SEM
Hatch of transfer (%)	94.0	94.3	94.4	91.96	0.58	1.399
Infertile embryos (%)	0	0.21	0	1.1	0.22	0.429
Early dead embryos (%)	0	0	0	0.26	0.39	0.132
Mid dead embryos (%)	0.41	0.43	0.35	0.2	0.94	0.287
Late dead embryos (%)	4.54	4.26	4.35	5.46	0.78	0.914
Pipped embryos (%)	0.65	0.62	0.91	1.01	0.92	0.469
Contaminated embryos (%)	0.19	0	0	0.21	0.57	0.143
Culled embryos (%)	0.22	0	0	0	0.39	0.111
Average chick weight (g)	44.22	44.1	43.11	43.68	0.26	0.424

¹Means are calculated from 18 replicate values using a flat of eggs as the experimental unit.