Abstract: Background and Objective: The aim of this experiment was to investigate the effect of feeding fermented wet feed (FWF) on the live performance and some hatchability traits of broiler breeder hens. Methodology: The FWF was prepared by mixing 1 kg of basal broiler breeder diet with 1 L of tap water and 2 kg of manufactured locally produced probiotics (at least 109 Lactobacillus that was locally isolated from adult chickens, Bacillus subtills isolated from a Korean probiotic feed and 108 commercially available Saccharomyces cerevisiae). The mixture was then incubated under a plastic cover for 38 h at 37.5±2°C. After the incubation step, 216 female and 24 male broiler breeders (Ross 308) from 28-38 weeks of age (84 days) were distributed randomly among four treatment groups with three replicates per treatment (each replicate contained 18 females and two males and thus 54 females and six males were subjected to each treatment). The control, 1st, 2nd and 3rd treatment groups were administered 0% FWF:100% basal diet, 25% FWF:75% basal diet, 50% FWF:50% basal diet and 75% FWF:25% basal diet, respectively. At the end of the experiment (38 week), 500 eggs were collected and transferred to a hatchery. The incubation of the hatching eggs revealed no significant differences in the fertility percentage, total hatching percentage and hatching percentage of the fertile eggs. Results: No significant differences in live breeder performance were found between the treatment groups, with the exception that the 50 and 75% FWF treatments significantly increased the egg weight compared with the weights obtained with the other treatments. Similarly, these treatments resulted in a higher number of unsaleable eggs due to significant increases in the percentages of large eggs that were not suitable for hatching. Consequently, the administration of FWF increased the number of eggs transferred to the hatchery and thus increased the final breeding product, namely, the number of chicks. Conclusion: The current study showed that the feeding of fermented feed to broiler breeders does not significantly affect their performance parameters, with the exception of improving the egg weight and the number of unsaleable hatching eggs, which resulted in increases in the number of chicks.