Developmental stage affects eggshell-breaking strength in two ground-nesting birds: The partridge (Alectoris rufa) and the quail (Coturnix japonica)

Aurora M. Castilla, Anthony Herrel, Guillém Díaz, Amadeu Francesch

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We examined the relationship between embryo development and egg hardness in two ground nesting bird species, the red-legged partridge (Alectoris rufa; n = 165 eggs) and the quail (Coturnix japonica; n = 148 eggs). For both species, we observed a strong effect of developmental stage on egg hardness. Eggs near hatching were significantly weaker than unincubated eggs (partridge: 18 and 23N, respectively, and the quail 7 and ION, respectively). We additionally explored the effect of incubation on egg hardness in a control sample of non-fertilised quail eggs (i.e., without embryo development). The control eggs maintained in the incubator for the full incubation time (17 days) were significantly harder (7-9N) than eggs containing fully developed chicks (5-7N). Thus, the incubation conditions of high temperature and humidity alone seem not to have a significant effect on egg hardness, and support the important effect of calcium uptake.

Original languageEnglish
Pages (from-to)471-477
Number of pages7
JournalJournal of Experimental Zoology Part A: Ecological Genetics and Physiology
Volume307
Issue number8
DOIs
Publication statusPublished - 1 Aug 2007
Externally publishedYes

Fingerprint

Alectoris rufa
Egg Shell
Coturnix
eggshell
partridges
Quail
quails
egg shell
developmental stage
Eggs
Birds
hardness
developmental stages
egg
bird
Hardness
birds
Ovum
embryogenesis
Embryonic Development

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Ecology, Evolution, Behavior and Systematics
  • Genetics
  • Molecular Biology
  • Physiology

Cite this

@article{53dd4a77b03b4609957b7c30044f0b09,
title = "Developmental stage affects eggshell-breaking strength in two ground-nesting birds: The partridge (Alectoris rufa) and the quail (Coturnix japonica)",
abstract = "We examined the relationship between embryo development and egg hardness in two ground nesting bird species, the red-legged partridge (Alectoris rufa; n = 165 eggs) and the quail (Coturnix japonica; n = 148 eggs). For both species, we observed a strong effect of developmental stage on egg hardness. Eggs near hatching were significantly weaker than unincubated eggs (partridge: 18 and 23N, respectively, and the quail 7 and ION, respectively). We additionally explored the effect of incubation on egg hardness in a control sample of non-fertilised quail eggs (i.e., without embryo development). The control eggs maintained in the incubator for the full incubation time (17 days) were significantly harder (7-9N) than eggs containing fully developed chicks (5-7N). Thus, the incubation conditions of high temperature and humidity alone seem not to have a significant effect on egg hardness, and support the important effect of calcium uptake.",
author = "Castilla, {Aurora M.} and Anthony Herrel and Guill{\'e}m D{\'i}az and Amadeu Francesch",
year = "2007",
month = "8",
day = "1",
doi = "10.1002/jez.400",
language = "English",
volume = "307",
pages = "471--477",
journal = "Journal of Experimental Zoology Part A: Ecological Genetics and Physiology",
issn = "1932-5223",
publisher = "John Wiley and Sons Inc.",
number = "8",

}

TY - JOUR

T1 - Developmental stage affects eggshell-breaking strength in two ground-nesting birds

T2 - The partridge (Alectoris rufa) and the quail (Coturnix japonica)

AU - Castilla, Aurora M.

AU - Herrel, Anthony

AU - Díaz, Guillém

AU - Francesch, Amadeu

PY - 2007/8/1

Y1 - 2007/8/1

N2 - We examined the relationship between embryo development and egg hardness in two ground nesting bird species, the red-legged partridge (Alectoris rufa; n = 165 eggs) and the quail (Coturnix japonica; n = 148 eggs). For both species, we observed a strong effect of developmental stage on egg hardness. Eggs near hatching were significantly weaker than unincubated eggs (partridge: 18 and 23N, respectively, and the quail 7 and ION, respectively). We additionally explored the effect of incubation on egg hardness in a control sample of non-fertilised quail eggs (i.e., without embryo development). The control eggs maintained in the incubator for the full incubation time (17 days) were significantly harder (7-9N) than eggs containing fully developed chicks (5-7N). Thus, the incubation conditions of high temperature and humidity alone seem not to have a significant effect on egg hardness, and support the important effect of calcium uptake.

AB - We examined the relationship between embryo development and egg hardness in two ground nesting bird species, the red-legged partridge (Alectoris rufa; n = 165 eggs) and the quail (Coturnix japonica; n = 148 eggs). For both species, we observed a strong effect of developmental stage on egg hardness. Eggs near hatching were significantly weaker than unincubated eggs (partridge: 18 and 23N, respectively, and the quail 7 and ION, respectively). We additionally explored the effect of incubation on egg hardness in a control sample of non-fertilised quail eggs (i.e., without embryo development). The control eggs maintained in the incubator for the full incubation time (17 days) were significantly harder (7-9N) than eggs containing fully developed chicks (5-7N). Thus, the incubation conditions of high temperature and humidity alone seem not to have a significant effect on egg hardness, and support the important effect of calcium uptake.

UR - http://www.scopus.com/inward/record.url?scp=34547751858&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34547751858&partnerID=8YFLogxK

U2 - 10.1002/jez.400

DO - 10.1002/jez.400

M3 - Article

C2 - 17600815

AN - SCOPUS:34547751858

VL - 307

SP - 471

EP - 477

JO - Journal of Experimental Zoology Part A: Ecological Genetics and Physiology

JF - Journal of Experimental Zoology Part A: Ecological Genetics and Physiology

SN - 1932-5223

IS - 8

ER -