Exploratory study on characteristics of oyster shell and eggshell quality in Chile

Abstract: This study aimed to characterise oyster shell and white egg shell quality in Chile. The work was based on samples of both oyster shell and eggs, which were sourced from 7 laying farms over a period of several weeks during the production stage. Oyster shells were characterised according to...

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Autores principales:	Arenas,Carolina, Hidalgo,Marcelo, Hidalgo,Héctor, Valenzuela,Carolina
Lenguaje:	English
Publicado:	Universidad Austral de Chile. Facultad de Ciencias Veterinarias 2018
Materias:	calcium eggs granulometry oyster shell
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-81322018000300149
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spelling	oai:scielo:S0719-813220180003001492018-11-05Exploratory study on characteristics of oyster shell and eggshell quality in ChileArenas,CarolinaHidalgo,MarceloHidalgo,HéctorValenzuela,Carolina calcium eggs granulometry oyster shell Abstract: This study aimed to characterise oyster shell and white egg shell quality in Chile. The work was based on samples of both oyster shell and eggs, which were sourced from 7 laying farms over a period of several weeks during the production stage. Oyster shells were characterised according to their calcium content and granulometric distribution, and were classified in three types of particles (mm): coarse (>1.7), medium-sized (0.9-1.6) and fine (<0.8). Eggs were characterised, according to hen age and farm, by determining their weight, eggshell resistance, and thickness. Currently, Chilean farms use oyster shells whose calcium content ranges from 32.5% to 34.8%, and their granulometric distribution is 51.7% coarse, 27.6% medium-sized and 18.1% fine particles. Thus, the predominant form of oyster shell traded by major companies in Chile is the coarse type of particles, followed by medium-sized and fine particles. Similar calcium contents were observed for oyster shell samples sourced from different farms. Similar weight of the eggs were found for all farms (60-64 g). Contrarily, farms presented different results for eggshell resistance (3,934-5,057 g) and eggshell thickness (0.322-0.376 mm). Eggshell resistance and thickness values were within the expected range for white hen eggs.info:eu-repo/semantics/openAccessUniversidad Austral de Chile. Facultad de Ciencias VeterinariasAustral journal of veterinary sciences v.50 n.3 20182018-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-81322018000300149en10.4067/S0719-81322018000300149
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	calcium eggs granulometry oyster shell
spellingShingle	calcium eggs granulometry oyster shell Arenas,Carolina Hidalgo,Marcelo Hidalgo,Héctor Valenzuela,Carolina Exploratory study on characteristics of oyster shell and eggshell quality in Chile
description	Abstract: This study aimed to characterise oyster shell and white egg shell quality in Chile. The work was based on samples of both oyster shell and eggs, which were sourced from 7 laying farms over a period of several weeks during the production stage. Oyster shells were characterised according to their calcium content and granulometric distribution, and were classified in three types of particles (mm): coarse (>1.7), medium-sized (0.9-1.6) and fine (<0.8). Eggs were characterised, according to hen age and farm, by determining their weight, eggshell resistance, and thickness. Currently, Chilean farms use oyster shells whose calcium content ranges from 32.5% to 34.8%, and their granulometric distribution is 51.7% coarse, 27.6% medium-sized and 18.1% fine particles. Thus, the predominant form of oyster shell traded by major companies in Chile is the coarse type of particles, followed by medium-sized and fine particles. Similar calcium contents were observed for oyster shell samples sourced from different farms. Similar weight of the eggs were found for all farms (60-64 g). Contrarily, farms presented different results for eggshell resistance (3,934-5,057 g) and eggshell thickness (0.322-0.376 mm). Eggshell resistance and thickness values were within the expected range for white hen eggs.
author	Arenas,Carolina Hidalgo,Marcelo Hidalgo,Héctor Valenzuela,Carolina
author_facet	Arenas,Carolina Hidalgo,Marcelo Hidalgo,Héctor Valenzuela,Carolina
author_sort	Arenas,Carolina
title	Exploratory study on characteristics of oyster shell and eggshell quality in Chile
title_short	Exploratory study on characteristics of oyster shell and eggshell quality in Chile
title_full	Exploratory study on characteristics of oyster shell and eggshell quality in Chile
title_fullStr	Exploratory study on characteristics of oyster shell and eggshell quality in Chile
title_full_unstemmed	Exploratory study on characteristics of oyster shell and eggshell quality in Chile
title_sort	exploratory study on characteristics of oyster shell and eggshell quality in chile
publisher	Universidad Austral de Chile. Facultad de Ciencias Veterinarias
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-81322018000300149
work_keys_str_mv	AT arenascarolina exploratorystudyoncharacteristicsofoystershellandeggshellqualityinchile AT hidalgomarcelo exploratorystudyoncharacteristicsofoystershellandeggshellqualityinchile AT hidalgohector exploratorystudyoncharacteristicsofoystershellandeggshellqualityinchile AT valenzuelacarolina exploratorystudyoncharacteristicsofoystershellandeggshellqualityinchile
_version_	1714207276802244608

Exploratory study on characteristics of oyster shell and eggshell quality in Chile

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