Influence of in ovo injection the hatching eggs with two levels of thiamin Riboflavin on hatchability and productive performance of broiler

Abstract

The study was conducted to define the influence of in ovo injection the Broiler hatching eggs with two levels of vitamins B1,B2 on hatchability and the productive performance and some anatomical of broiler.600 hatching eggs (Ross 308) was incubated ,on fourteenth day, eggs was candled to isolate non fertile eggs and containing death embryos . then residual eggs divided into equal 6 treatments adjuster three repeater and injected with 0.1 ml of ready solutions according to the following treatments :1- The first treatment (T1): injection of 100 µg B1/egg.2- The second treatment (T2): injection of 150 µg B1/egg.3- The third treatment (T3): injection of 100 µg B2/egg.4- The fourth treatment (T4): injection of 150 µg B2/egg. 5- The fifth treatment (T5): injection of 0.1 ml sterile distilled water (positive control) .6- The sixth treatment (T6): without injection (negative control) .Hatching chicks from each treatment, were divided into three repeater adjuster (10) birds for each repeater and reared to (5) weeks .The results of this study indicated that :1- There were significant differences (p<0.01) in hatchability and relative weight of hatched chick. additionally, significant surpuss (p<0.05) in average weight of hatched Chick of eggs were injected with vitamins, T3(100µg B2) was the optimal, comparative with the other experimental treatments .2- There was a significant rise (p<0.05) in average of live body weight for all weeks of rearing to birds which produced from eggs were injected with 100 µg B1 (T1) comparative with the other experimental treatments. 3- There was a significant rise (p<0.05) at average of total body weight gain to birds of T1 and T4 (150 µg B2) comparative with the other experiment . 4- There were significant differences (p<0.01) in average of total feed intake, whereat the birds of T1 consumed the largest feed comparative with the other experimental treatments .5- There were significant differences (p<0.05) in average of feed conversion at age (5) weeks, the highest reduction of feed conversion was to birds of (T4).