Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

ARS Study Eyes Egg Quality and Composition

08.07.2010
There's no substantial quality difference between organically and conventionally produced eggs. That's one of a number of findings in an Agricultural Research Service (ARS) study examining various aspects of egg quality.

ARS food technologist Deana Jones and her team in the Egg Safety and Quality Research Unit in Athens, Ga., found that, on average, there was no substantial quality difference between types of eggs. So, no matter which specialty egg is chosen, it will be nearly the same quality as any other egg.

About 6.5 billion dozen shell eggs are produced each year in the United States, with a value of about $7 billion, according to the U.S. Department of Agriculture (USDA) Economic Research Service.

The ARS team found the biggest difference was the size of egg within a carton between brown and white eggs. Though brown eggs weighed more, white shell eggs had higher percentages of total solids and crude fat. But, according to the study, there was no significant difference in the quality of white and brown eggs.

Quality is measured by Haugh units, named after Raymond Haugh. In 1937, he developed the Haugh unit as a correlation between egg weight and the height of the thick albumen, or thickest part of the egg white. The Haugh unit has become the most widely used measurement of interior egg quality and is considered to be the "gold standard" of interior egg quality determination.

Jones and her team conducted a survey of white and brown large-shell eggs with various production and nutritional differences such as traditional, cage-free, free-roaming, pasteurized, nutritionally-enhanced, and fertile. The goal was to determine if physical quality and compositional differences exist among these different eggs.

Among the claims most often addressed on shell egg cartons are: husbandry practices, hen nutrition, enhanced egg nutrition (omega-3), organic and fertile. Pricing for these products is typically at a premium but can vary from market to market.

This research was published in the journal Poultry Science.

ARS is USDA's principal intramural scientific research agency.

USDA is an equal opportunity provider, employer and lender. To file a complaint of discrimination, write: USDA, Director, Office of Civil Rights, 1400 Independence Ave., S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice), or (202) 720-6382 (TDD).

Sharon Durham | Newswise Science News
Further information:
http://www.ars.usda.gov

Further reports about: ARS Agricultural Research EGG Omega-3 USDA eyes interior egg quality

More articles from Agricultural and Forestry Science:

nachricht New 3-D model predicts best planting practices for farmers
26.06.2017 | Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign

nachricht Fighting a destructive crop disease with mathematics
21.06.2017 | University of Cambridge

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Manipulating Electron Spins Without Loss of Information

Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.

For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...

Im Focus: The proton precisely weighted

What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.

To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...

Im Focus: On the way to a biological alternative

A bacterial enzyme enables reactions that open up alternatives to key industrial chemical processes

The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....

Im Focus: The 1 trillion tonne iceberg

Larsen C Ice Shelf rift finally breaks through

A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...

Im Focus: Laser-cooled ions contribute to better understanding of friction

Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision

Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

»We are bringing Additive Manufacturing to SMEs«

19.07.2017 | Event News

The technology with a feel for feelings

12.07.2017 | Event News

Leipzig HTP-Forum discusses "hydrothermal processes" as a key technology for a biobased economy

12.07.2017 | Event News

 
Latest News

Researchers create new technique for manipulating polarization of terahertz radiation

20.07.2017 | Information Technology

High-tech sensing illuminates concrete stress testing

20.07.2017 | Materials Sciences

First direct observation and measurement of ultra-fast moving vortices in superconductors

20.07.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>