Effect of spraying some plant extracts on hatching eggs of broiler chickens on the hatching rate and embryo mortality and the weight of hatched chicken

This study was conducted to investigate the effect of spraying the hatching eggs of layer eggs (Lohman) with water extracts of pomegranate, clove, and anise on the hatching characteristics and the weight of the hatched chicks. The eggs were distributed randomly into five treatments, each containing 60 eggs per treatment as three replicates. The experimental treatments were divided into T1: control treatment, T2: spraying distilled water, T3: spraying aqueous clove extract at a level of 5 ml / 100 ml water, T4: spraying the aqueous pomegranate extract in 5 ml / 100 ml water, and T5: spraying the aqueous anise extract with 5 ml / 100 ml water. Then, the eggs were transferred to the incubator to start the hatching process for 21 days. The results indicated a significant improvement in the hatching percentage of fertilized eggs with a significant decrease in the number of deaths of total embryos from fertilized eggs of T2, T4, and T5 and a significant decrease in the percentage of live clicker chicks and deformed chicks in (T2, T4, and T5) during the total incubation period for all egg spraying treatments compared to T1. All spraying treatments had the highest significance in the relative weight of hatched chicks, with a highly significant improvement for all spraying treatments in the phenotypic characteristics of hatched chicks compared to control treatment T1.