Research Note: Responses of broiler chickens to in ovo feeding with clove and cinnamon extract under hot-humid environments

An experiment was carried out to evalu-ate the responses of broiler chickens to in ovo injection of aqueous extracts of clove and cinnamon under a hot -humid environment. The study involved the use of seven hundred hatching eggs from broilers (Ross 308) which were incubated with the use of standard protocol (37.8 degrees C). The incubating eggs (100 each) were randomly selected and assigned to 7 treatments on day 17.5 of incu-bation, viz.: un-injected eggs (UE), eggs injected with 0.5 mL distilled water (DW), 2 mg clove (CL2), 4 mg clove (CL4), 2 mg cinnamon (CN2), 4 mg cinnamon (CN4), and 3 mg ascorbic acid (AA).Data on physiologi-cal parameters, hatchability, chick quality, and anatomical characteristics of the chicks were collected and analyzed using one-way analysis of variance. The results obtained revealed that the hatchability of eggs of AA and CN2 was higher compared to DW and UE. How-ever, the hatchability of DW and UE was higher than those of CN4. The total chick quality scores of the control were similar to the other groups. Chick weights at hatch were similar in CL2, CN2, and AA but heavier than CN4, CL4, UE, and DW. The chick-to-egg ratio in AA was comparable to CL2 and CN2 but higher than UE, DW, CN4, and CL4. Total scores for chick quality of AA birds were similar to those of UE, CL2, and CL4 birds but higher than DW, CN2, and CN4 birds.

Automated summary

A study was conducted to investigate the effects of clove and cinnamon extracts on broiler chickens under a hot-humid environment. The results showed that the hatchability of eggs injected with cinnamon and ascorbic acid was higher compared to those injected with distilled water. Chick weights at hatch were similar in the groups injected with clove, cinnamon, and ascorbic acid, but lower in the group injected with higher doses of cinnamon. The total scores for chick quality were similar in the control group and the groups injected with ascorbic acid and clove, but lower in the groups injected with distilled water and cinnamon.