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Egg storage and breeder age impact on egg quality and embryo development.

Authors
  • Nasri, Hedia1
  • van den Brand, Henry2
  • Najjar, Taha1
  • Bouzouaia, Moncef1
  • 1 Department of Animal Production, National Agronomic Institute of Tunisia, Tunis, Tunisia. , (Tunisia)
  • 2 Adaptation Physiology Group, Wageningen University, Wageningen, The Netherlands. , (Netherlands)
Type
Published Article
Journal
Journal of animal physiology and animal nutrition
Publication Date
Nov 06, 2019
Identifiers
DOI: 10.1111/jpn.13240
PMID: 31691404
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Prolonged hatching egg storage (>7 days) influences internal egg quality and embryo survival during both storage and subsequent incubation. Moreover, effects of storage of hatching eggs interact with the breeder age. The aim of this review was to investigate how this interaction between storage duration and breeder age affects egg, embryo, hatchling and chicken characteristics. Prolonged storage resulted in a reduction in egg quality in both young and old breeders. This reduction was more pronounced in young flocks than in older flocks. For example, albumen pH increased more after 8 days of storage in younger flocks than in older flocks. Additionally, the embryonic morphological stage appears to increase as well with storage duration, but this increase is again more pronounced in younger flocks than in older flocks. Short storage (<7 days) seems to increase hatchability of eggs from young breeders, probably as a result of albumen liquefaction with consequently better oxygen availability for the embryo. However, long storage (>7 days) resulted in a decline in hatchability, which was stronger in older breeders than in younger breeders. Prolonged storage duration resulted in lower chicken quality in both young and old breeders, but interaction between storage duration and breeder age on multiple chicken quality parameters is not clear. Based on this review, it can be concluded that (a) Short storage can improve hatchability of eggs from young breeders, but not from older breeders. (b) Negative impact of long storage appears to be lower with young breeders than with old breeders. (c) Adapted storage conditions related to the age of breeders might be an option to reduce negative effects of prolonged storage on hatching egg quality and chicken quality. © 2019 Blackwell Verlag GmbH.

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