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Research Note: Changes in eggshell quality and microstructure related to hen age during a production cycle
We have studied in detail the changes that occur in eggshell structure and composition during a production cycle in order to better understand the deterioration of eggshell quality with hen age (at 33, 45, and 67 wk). To study changes in eggshell ultrastructure and microstructure characteristics (ma...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8319018/ https://www.ncbi.nlm.nih.gov/pubmed/34280648 http://dx.doi.org/10.1016/j.psj.2021.101287 |
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author | Benavides-Reyes, Cristina Folegatti, Elisa Dominguez-Gasca, Nazaret Litta, Gilberto Sanchez-Rodriguez, Estefania Rodriguez-Navarro, Alejandro B. Umar Faruk, Murtala |
author_facet | Benavides-Reyes, Cristina Folegatti, Elisa Dominguez-Gasca, Nazaret Litta, Gilberto Sanchez-Rodriguez, Estefania Rodriguez-Navarro, Alejandro B. Umar Faruk, Murtala |
author_sort | Benavides-Reyes, Cristina |
collection | PubMed |
description | We have studied in detail the changes that occur in eggshell structure and composition during a production cycle in order to better understand the deterioration of eggshell quality with hen age (at 33, 45, and 67 wk). To study changes in eggshell ultrastructure and microstructure characteristics (mammillary density, palisade layer thickness, size, and orientation of calcite crystals) and the cuticle composition, we used complementary analytical techniques such optical and electron microscopy, X-ray diffraction, and infrared spectrometry. The marked decrease in eggshell breaking strength from 5.8 Kg at 33 wk to 4.4 Kg at 67 wk (25% reduction) could not be solely explained by the modest reduction in eggshell thickness (6–10% reduction) and seems to be associate to abrupt changes in eggshell ultra- and microstructure characteristics (i.e., decreased mammillary density; increased size of crystal units), occurring in older hens. Particularly, the decrease in mammillary density reduces the attachment points of the eggshell mineral to the membranes and therefore should negatively impact eggshell mechanical properties. Also, the observed increase in the calcite crystal size making the shell could also reduce the cohesion of crystals and eggshell resistance against impacts. Additionally, there was a decrease in the amount of cuticle and internal egg quality parameters (egg albumen height) with hen age that could have a negative impact in egg safety and quality. |
format | Online Article Text |
id | pubmed-8319018 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-83190182021-08-02 Research Note: Changes in eggshell quality and microstructure related to hen age during a production cycle Benavides-Reyes, Cristina Folegatti, Elisa Dominguez-Gasca, Nazaret Litta, Gilberto Sanchez-Rodriguez, Estefania Rodriguez-Navarro, Alejandro B. Umar Faruk, Murtala Poult Sci ANIMAL WELL-BEING AND BEHAVIOR We have studied in detail the changes that occur in eggshell structure and composition during a production cycle in order to better understand the deterioration of eggshell quality with hen age (at 33, 45, and 67 wk). To study changes in eggshell ultrastructure and microstructure characteristics (mammillary density, palisade layer thickness, size, and orientation of calcite crystals) and the cuticle composition, we used complementary analytical techniques such optical and electron microscopy, X-ray diffraction, and infrared spectrometry. The marked decrease in eggshell breaking strength from 5.8 Kg at 33 wk to 4.4 Kg at 67 wk (25% reduction) could not be solely explained by the modest reduction in eggshell thickness (6–10% reduction) and seems to be associate to abrupt changes in eggshell ultra- and microstructure characteristics (i.e., decreased mammillary density; increased size of crystal units), occurring in older hens. Particularly, the decrease in mammillary density reduces the attachment points of the eggshell mineral to the membranes and therefore should negatively impact eggshell mechanical properties. Also, the observed increase in the calcite crystal size making the shell could also reduce the cohesion of crystals and eggshell resistance against impacts. Additionally, there was a decrease in the amount of cuticle and internal egg quality parameters (egg albumen height) with hen age that could have a negative impact in egg safety and quality. Elsevier 2021-05-27 /pmc/articles/PMC8319018/ /pubmed/34280648 http://dx.doi.org/10.1016/j.psj.2021.101287 Text en © 2021 The Authors https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | ANIMAL WELL-BEING AND BEHAVIOR Benavides-Reyes, Cristina Folegatti, Elisa Dominguez-Gasca, Nazaret Litta, Gilberto Sanchez-Rodriguez, Estefania Rodriguez-Navarro, Alejandro B. Umar Faruk, Murtala Research Note: Changes in eggshell quality and microstructure related to hen age during a production cycle |
title | Research Note: Changes in eggshell quality and microstructure related to hen age during a production cycle |
title_full | Research Note: Changes in eggshell quality and microstructure related to hen age during a production cycle |
title_fullStr | Research Note: Changes in eggshell quality and microstructure related to hen age during a production cycle |
title_full_unstemmed | Research Note: Changes in eggshell quality and microstructure related to hen age during a production cycle |
title_short | Research Note: Changes in eggshell quality and microstructure related to hen age during a production cycle |
title_sort | research note: changes in eggshell quality and microstructure related to hen age during a production cycle |
topic | ANIMAL WELL-BEING AND BEHAVIOR |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8319018/ https://www.ncbi.nlm.nih.gov/pubmed/34280648 http://dx.doi.org/10.1016/j.psj.2021.101287 |
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