ELDeeb, M., Makled, M., Refaie, M., El-kelawy, M. (2020). INFLUENCE OF IN OVO FEEDING WITH VITAMIN C OR GLUCOSE ON POST-HATCH PRODUCTIVE PERFORMANCE OF DANDRAWI CHICKS. Egyptian Poultry Science Journal, 40(2), 373-394.
Mariam A. ELDeeb; M. N. Makled; M. Refaie; M. El-kelawy. "INFLUENCE OF IN OVO FEEDING WITH VITAMIN C OR GLUCOSE ON POST-HATCH PRODUCTIVE PERFORMANCE OF DANDRAWI CHICKS". Egyptian Poultry Science Journal, 40, 2, 2020, 373-394.
ELDeeb, M., Makled, M., Refaie, M., El-kelawy, M. (2020). 'INFLUENCE OF IN OVO FEEDING WITH VITAMIN C OR GLUCOSE ON POST-HATCH PRODUCTIVE PERFORMANCE OF DANDRAWI CHICKS', Egyptian Poultry Science Journal, 40(2), pp. 373-394.
ELDeeb, M., Makled, M., Refaie, M., El-kelawy, M. INFLUENCE OF IN OVO FEEDING WITH VITAMIN C OR GLUCOSE ON POST-HATCH PRODUCTIVE PERFORMANCE OF DANDRAWI CHICKS. Egyptian Poultry Science Journal, 2020; 40(2): 373-394.
INFLUENCE OF IN OVO FEEDING WITH VITAMIN C OR GLUCOSE ON POST-HATCH PRODUCTIVE PERFORMANCE OF DANDRAWI CHICKS
1Poultry Prod., Faculty of Agric. Assiut University
21 Dept. of Poult. Prod., Fac. of Agric., Uni. of Assiut, Assiut 71516, Egypt
32 Dept. of Anim. and Poult. Prod., Fac. of Agric., Uni of New Valley, Egypt
Abstract
A study was carried out to evaluate the effect of in ovo feeding during early-embryonic life with either vitamin C or glucose on hatchability, post hatch performance, carcass traits and gut histology. Two sets of Dandrawi fertile eggs (400 eggs each with average weight 51.1± 0.2g) were used in two separate trials. On d 14 of incubation, eggs of the first set (Trial 1) were examined and those containing live embryos were divided equally into 4 treatments (100 eggs/ treatment) and injected in the amnion as follows: T1 (negative control, no injection); T2 (positive control, injected with 0.1ml saline solution 0.9g/L); T3 (injected with 0.1ml 2.5 % water solved vitamin C); T4 (injected with 0.1ml 5% water solved vitamin C). Eggs of Trial II: T1 (negative control, no injection); T2 (positive control, injected with 0.1ml saline solution 0.9g/L); T3 (injected with 0.1ml 5 % water solved glucose); T4 (injected with 0.1ml 10% water solved glucose). Hatched chicks from each trial were allocated into 3 replicates/ treatment and brooded till 10 weeks old.
Performance of chicks of T4 (Trial 1) hatched from the eggs injected with 5% vitamin C showed significant (P<.01) improvement in BW, BWG, FCR and scored the lowest percent of mortality. However; measurements of carcass traits showed no significant differences among treatments. Furthermore, blood parameters were all within normal physiological values. Histological examination of the gut revealed positive influence (P<.01) of 5% vitamin C injection level on height and width of duodenum villi. Results of the second trial showed significant (P<.01) enhancement in performance of the chicks hatched from the eggs injected with 10% glucose. Also, histological evaluation of the same group scored the highest (P<.01) values of duodenum villi height and width. In conclusion, in ovo injection at d 18 of incubation with either 0.1 ml 5% vitamin C or 0.1ml 10% glucose improved post hatch Dandarawi chicks’ performance and gut histological traits related to nutrient absorption.
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