Temperature Sequence of Eggs from Oviposition Through Distribution: Production—Part 1
dc.contributor.author | Patterson, P. | |
dc.contributor.author | Koelkebeck, Ken | |
dc.contributor.author | Ahn, Dong | |
dc.contributor.author | Anderson, K. E. | |
dc.contributor.author | Darre, M. J. | |
dc.contributor.author | Carey, J. B. | |
dc.contributor.author | Ahn, Dong | |
dc.contributor.author | Ernst, R. A. | |
dc.contributor.author | Kuney, D. R. | |
dc.contributor.author | Jones, D. R. | |
dc.contributor.department | Animal Science | |
dc.date | 2018-02-16T08:57:26.000 | |
dc.date.accessioned | 2020-06-29T23:41:45Z | |
dc.date.available | 2020-06-29T23:41:45Z | |
dc.date.issued | 2008-06-01 | |
dc.description.abstract | <p>During Egg Safety Action Plan hearings in Washington, DC, many questions were raised concerning the egg temperature (T) used in the risk assessment model. Therefore, a national study was initiated to determine the T of eggs from oviposition through distribution. In part 1; researchers gathered data on internal and surface egg T from commercial egg production facilities. An infrared thermometer was used to rapidly measure surface T, and internal T was determined by probing individual eggs. The main effects were geographic region (state) and season evaluated in a factorial design. Egg T data were recorded in the production facilities in standardized comparisons. Regression analysis (<em>P</em> < 0.0001) showed that the R<sup>2</sup> (0.952) between infrared egg surface T and internal T was very high, and validated further use of the infrared thermometer. Hen house egg surface and internal T were significantly influenced by state, season, and the state × season interaction. Mean hen house egg surface T was 27.3 and 23.8°C for summer and winter, respectively, with 29.2 and 26.2°C for egg internal T (<em>P</em> < 0.0001). Hen house eggs from California had the lowest surface and internal T in winter among all the states (<em>P</em> < 0.0001), whereas the highest egg surface T were recorded during summer in North Carolina, Georgia, and Texas, and the highest internal T were recorded from Texas and Georgia. Cooling of warm eggs following oviposition was significantly influenced by season, state, and their interaction. Egg internal T when 3/4 cool was higher in summer vs. winter and higher in North Carolina and Pennsylvania compared with Iowa. The time required to 3/4 cool eggs was greater in winter than summer and greater in Iowa than in other states. These findings showed seasonal and state impacts on ambient T in the hen house that ultimately influenced egg surface and internal T. More important, they showed opportunities to influence cooling rate to improve internal and microbial egg quality.</p> | |
dc.description.comments | <p>This article is from <em>Poultry Science</em> 87 (2008): 1182, doi:<a href="http://dx.doi.org/10.3382/ps.2007-00242" target="_blank">10.3382/ps.2007-00242</a>.</p> | |
dc.format.mimetype | application/pdf | |
dc.identifier | archive/lib.dr.iastate.edu/ans_pubs/69/ | |
dc.identifier.articleid | 1071 | |
dc.identifier.contextkey | 7091926 | |
dc.identifier.s3bucket | isulib-bepress-aws-west | |
dc.identifier.submissionpath | ans_pubs/69 | |
dc.identifier.uri | https://dr.lib.iastate.edu/handle/20.500.12876/9995 | |
dc.language.iso | en | |
dc.source.bitstream | archive/lib.dr.iastate.edu/ans_pubs/69/2008_Ahn_TemperaturePart1.pdf|||Sat Jan 15 01:30:13 UTC 2022 | |
dc.source.uri | 10.3382/ps.2007-00242 | |
dc.subject.disciplines | Agriculture | |
dc.subject.disciplines | Animal Sciences | |
dc.subject.disciplines | Meat Science | |
dc.subject.disciplines | Poultry or Avian Science | |
dc.subject.keywords | egg production | |
dc.subject.keywords | egg temperature | |
dc.subject.keywords | shell egg | |
dc.title | Temperature Sequence of Eggs from Oviposition Through Distribution: Production—Part 1 | |
dc.type | article | |
dc.type.genre | article | |
dspace.entity.type | Publication | |
relation.isAuthorOfPublication | d3386101-2f0d-4375-ab44-ac1addb6a9ad | |
relation.isOrgUnitOfPublication | 85ecce08-311a-441b-9c4d-ee2a3569506f |
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