Kosba, M., sherif, S. (2025). Effect of in ovo-injection by saline, biotin, and L-carnitine on hatchability and subsequent broiler chicken’s performance. Egyptian Poultry Science Journal, (), -. doi: 10.21608/epsj.2025.72900.1158
Mohamed Kosba; sara khalil sherif. "Effect of in ovo-injection by saline, biotin, and L-carnitine on hatchability and subsequent broiler chicken’s performance". Egyptian Poultry Science Journal, , , 2025, -. doi: 10.21608/epsj.2025.72900.1158
Kosba, M., sherif, S. (2025). 'Effect of in ovo-injection by saline, biotin, and L-carnitine on hatchability and subsequent broiler chicken’s performance', Egyptian Poultry Science Journal, (), pp. -. doi: 10.21608/epsj.2025.72900.1158
Kosba, M., sherif, S. Effect of in ovo-injection by saline, biotin, and L-carnitine on hatchability and subsequent broiler chicken’s performance. Egyptian Poultry Science Journal, 2025; (): -. doi: 10.21608/epsj.2025.72900.1158
Effect of in ovo-injection by saline, biotin, and L-carnitine on hatchability and subsequent broiler chicken’s performance
Articles in Press, Accepted Manuscript, Available Online from 19 May 2025
1Poultry Production Dep., Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria, Egypt
2Poultry Production Department, Faculty of Agriculture, Mansoura University
Abstract
This trial investigates the effect of saline, biotin, and L-carnitine injection in ovo at four incubational ages on hatchability and subsequent broiler chick’s performance. The eggs were injected by 0.1 ml of saline, biotin or L-carnitine at four ages during incubation (1, 14, 16, 18 days of incubation). Hatched chicks were reared and fed starter and grower diets. Bird’s weight, gain, feed consumed and feed utilization were weekly recorded. Mortality was also monitored. A slaughter test was made to evaluate carcass characteristics. The obtained results showed that, the highest hatchability percent achieved with saline followed by biotin and L-carnitine. The best hatchability percent recorded with the injection at day 18th followed by day 14th, day 16th of incubation. The worst hatchability percent was achieved by the injection at the first day of incubation. Marketing weight of chicks was significantly affected by injection materials, where the best body weight for biotin, followed by L-carnitine and finally for saline. Injection time was affected significantly live body weight up to 4 weeks of age; however, the differences were disappeared at marketing age (5 weeks of age). Total body weight gain was significantly affected by injection materials, where the best body weight for biotin, followed by L-carnitine and finally for saline; however, weight gain was not affected by injection time. Although total feed intake of chicks was not affected by injection materials or injection time. Birds hatched from eggs that were injected with biotin achieved significantly better feed conversion compared with L-carnitine and saline during the fattening period. Carcass traits were not affected by injection material and injection time. It was concluded that the eggs injection with biotin or L-Carnitine at the day 18th of incubation can be improve hatchability and subsequent broiler performance.
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