Effects of ultrasonic waves on eggshell strength and hatchability of layer-type breeder eggs

Abstract

________________________________________________________________________________ AbstractTwo trials were conducted to investigate the effects of exposing layer-type breeder eggs before incubation to ultrasonic waves (ULT). Eggs were subjected to ULT of 117 volts at 40 kHz for up to 15 minutes. Eggshell breaking force (EBF), hatchability and chick hatching weight (CHW) of Balady breeder eggs (Trial 1), and egg weight loss, embryo weight, hatchability and CHW of Leghorn hen eggs (Trial 2) were measured. In Trial 1 the eggs were subjected to seven treatments: non-dipped (control), and dipped for 5, 10 and 15 minutes in a water bath (W5, W10 and W15) or a ULT bath (ULT5, ULT10 and ULT15). In Trial 2 the eggs were subjected to four treatments, a control (ULT0) and the ultrasonic treatments, ULT5, ULT10 and ULT15. In treatments ULT10 and ULT15 the EBF of Balady eggs was significantly reduced while the hatchability of the Balady and Leghorn eggs was significantly reduced by the ULT15 and W15 treatments, compared with the control. Orthogonal contrast (control vs. ULT) indicated that ULT exposure of eggs reduced their EBF significantly. Percentage egg weight loss, embryo weight and CHW was not affected by the treatments. It was concluded that exposure of eggs to ULT of 117 volts at 40 kHz for 15 minutes reduced EBF and hatchability of layer-type breeder eggs without altering egg weight loss, embryo weight or CHW.________________________________________________________________________________

The effects of ozone, ultrasound and coating with shellac and lysozyme–chitosan on fresh egg during storage at ambient temperature. Part II: microbial quality, eggshell breaking strength and FT‐NIR spectral analysis

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“…Control eggs significantly exhibited the highest puncture strength than others (Tables and ). This clearly indicates the ultrasound effect the shell properties and surface erosion or thickness reduction may occur . These results agree with Sert et al and Shafey et al ultrasound reduced shell strength.…”

The effects of sonication on the stability of eggs during extended storage

“…The ultrasound treated eggs' breaking strength of eggshells bottom side values was significantly lower than untreated eggshells. These outcomes agree with previous research by Shafey et al (2013) and Caner & Y üceer (2015), that sonication decreases shell strength.…”

“…This expressed that the sonication effect properties of the shell, or degradation of surface, could occur. These outcomes agree with Sert et al (2011) and Shafey et al (2013) that ultrasound decreased shell strength.…”

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