Effect of pre-incubation in pre-storage and short periods of incubation during egg storage (SPIDES) and thermal manipulation during incubation period in embryonic development and percentage of hatching characteristics of hatching eggs of broiler breeder (ROSS 308)

Kh. E. Al-Samrai, E.; T. M. Al-Dhanki, Z.

	Effect of pre-incubation in pre-storage and short periods of incubation during egg storage (SPIDES) and thermal manipulation during incubation period in embryonic development and percentage of hatching characteristics of hatching eggs of broiler breeder (ROSS 308)
Al-Anbar Journal of Veterinary Sciences
Article 1, Volume 10, Issue 1, 2017, Pages 188-202 PDF (846.17 K)
Authors
E. Kh. E. Al-Samrai; Z. T. M. Al-Dhanki
Abstract
The study was conducted from 16/1/2017 to 23/2/2017 to show the effect of pre-incubation and short periods of incubation during egg storage (SPIDES) and thermal manipulation during incubation period in embryonic development and hatching characteristics of hatching eggs of broiler breeder (ROSS 308). In the study, 372 egg eggs (Ross 308) were randomly distributed in the first two experiments. The eggs were stored for 7 days and the eggs were stored for 14 days. Each experiment was divided into four treatments, each with 30 eggs. The eggs were pre-incubated at 37.5 °C and 55% RH for 6 hours before storage. Storage temperature was 15-18 °C in the first experiment, 12-15 °C in the second experiment and 55-60% relative humidity. Pre-incubation was carried out for short periods of incubation during egg storage (SPIDES) for 4 hours on days 4 and 7 of storage in the first experiment and for days 4, 7 and 10 in the second experiment. The results of the examination of the development of embryonic growth of hatching eggs prior to pre-storage and incubation prior to storage and incubation for short periods of incubation during egg storage (SPIDES) showed that most embryonic development in the experiments was between the fifth and sixth stages, Egg storage (7 and 14 days) The stages of embryonic development reached advanced stages of embryonic development, some of which reached the second stage (HH2). The results of the study showed a significant superiority (P≤0.05) Pre-incubation for short periods of incubation during egg storage (SPIDES) + Thermal manipulation in total hatching rate To 80%, 75.83% and 100% and 93.33% for hatching of eggs fertilized in eggs stored for 7 and 14 days respectively, we conclude from this experiment that the pre-incubation for short periods of incubation during egg storage (SPIDES) and then manipulation the eggs by raising The temperature of the incubator from 37.5 °C to 39.5°C for 3 hours during the 16, 17 and 18 days of incubation improved the hatching rate significantly
Keywords
Pre; incubation storage; SPIDES; Thermal manipulation; embryonic development; hatching characteristics

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