Little Melamine Appears In Eggs From Chickens On Highly Contaminated Feed

There should be an image here!Eggs from chickens that consumed extremely high levels of melamine in their feed still did not contain levels of the potentially toxic contaminant that exceeded U. S. Food and Drug Administration (FDA) limits. That was the conclusion of the first study to check on the effects of melamine-contaminated feed in laying hens. It appears in ACS’ Journal of Agricultural and Food Chemistry, a bi-weekly publication.

Liying Zhang and colleagues note that melamine, which is used to make certain plastics, triggered a public health controversy in 2008 because certain food manufacturers in China illegally added it to milk powder to distort the protein content. Authorities have since found excessive levels of melamine in eggs from chickens eating feed contaminated with the substance. However, scientists did not know how much melamine might accumulate in eggs from this process, until now.

In an effort to establish a scientific basis for determining the risk, Zhang’s group gave melamine-contaminated feed to egg-laying hens and found that increasing amounts of the chemical in feed resulted in increasing amounts in the eggs. However, none of the melamine concentrations in the eggs exceeded the FDA’s maximum allowable level — 2.5 parts per million (ppm) in foods. The highest levels of melamine in the feed, about 100 ppm, resulted in egg contamination levels of about 1.45 ppm. The scientists suggest that melamine contamination levels in feed that fall below 100 ppm would not result in potential hazards for food safety.

Michael Bernstein@ American Chemical Society

[Photo above by Catherine Bulinski / CC BY-ND 2.0]

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  • Charles Keisler

    While win7x86 supports 4 GB of memory only 3.33 GB gets allocated to the windows kernel, the rest is used for graphics processing, ect. through a process called four gig tuning or 4GT.

    This is like overclocking you CPU, i highly advise against it, most pepped don’t need 600 Mb or more of video memory. and the fact of the matter is when you buy windows 7 you product key is not tied to 32 or 64 bit, so you can barrow a friend’s widows disk and install windows 7 64 with your 32 bit product key.

    I recommend to all of my clients that they upgrade their OS at 3GB to allow for “future growth” which includes moving the hard drive into a new system.

  • Brandon Paddock

    @Charles There’s no process called “four gig tuning.” The reason only ~3GB of physical memory can be used on 32-bit systems is that the 32-bit address space is used for things besides physical memory. This is true regardless of the OS you use. Note it isn’t that the memory is being used by other things, it’s that the *addresses* are being used. When you run out of address space, the remaining physical memory is not addressable, so goes completely unused.

    If you have 4GB or higher, you’re generally going to want a 64-bit OS.