Effects of In-ovo Injection of Different Nutrients on the Hatchability and growth Performance in Broilers

The aim of this study was to investigate the effects of in ovo injections of albumin, amino acid and dextrose into the amnion on the hatchability, growth performance and slaughter yield of Ross 308 broiler chicks. Fertile eggs (n=360) were assigned to 6 treatment groups (4 replicates of 15 eggs each) including: non-injected eggs (control), and eggs injected with 0.7 ml distilled water (sham), amino acids, albumin 20%, dextrose 20% and dextrose 10% . The injections were made on d 17.5 of the incubation period, and the hatch rate of fertilized eggs were recorded. Post-hatch performance of was determined weekly up to day 42. On d 42 of age, the weight of carcasses, thighs, wings, breast muscle, back and neck were determined. The results showed that in ovo injection of albumin increased body weight (P<0.05) on the first day of hatch compared to the control and shame groups. There were no significant effects of treatments on feed intake, feed conversion ratio, carcass characteristics and slaughter yields.