PART 573 FOOD ADDITIVES PERMITTED IN FEED AND DRINKING WATER OF ANIMALSSubpart BFood Additive Listing Sec. 573.220 Feed-grade biuret.
Biuret
.. 55 minimum.
Urea
. 15 maximum.
Cyanuric acid and triuret
. 30 maximum.
Mineral oil
0.5 maximum.percent
Total nitrogen (equivalent to 218.75 pct 35 minimum.
crude protein).Percent
Biuret
.. 55 minimum.(cyanuric Acid)
Urea
. 15 maximum.
Cyanuric acid and triuret
. 30 maximum.
Mineral oil
0.5 maximum.
Total nitrogen (equivalent to 218.75 pct 35 minimum.
(crude protein).
This site has alot of good info.
http://lethaldose.wordpress.com/2007/05/02/fda-allows-biuret-cyanuric-acid-triuret-as-food-additive-in-feed-and-water-of-animals/A patent you should check out.
Process for the production of technical grade biuret,(A.K.A.cyanuric acid)
readily in a form suitable for use as animal feed, by the controlled pyrolysis of urea in two stages, the first stage involving the partial pyrolysis of urea at a temperature above the melting point of urea to produce a first stage intermediate reaction product containing from about 20% to about 60% urea, and not more than about 25% cyanuric acid by weight, such reaction product being then cooled and comminuted, the comminuted product then being subjected, in solid form and in the absence of a liquid carrier, to a temperature at or slightly below the softening point of the solid particulate
** (suitable at a temperature of from about 100.degree. C. to about 140.degree. C.)
http://www.freepatentsonline.com/4654441.html...At the rendering plant, slaughterhouse material, restaurant and supermarket refuse, dead stock, road kill, and euthanized companion animals are dumped into huge containers. A machine slowly grinds the entire mess. After it is chipped or shredded, it is cooked at temperatures of between 220 degrees F. and 270 degrees F.
(104.4 to 132.2 degrees C.) http://www.veggieboards.com/boards/showthread.php?t=1925On a Monday morning, Cameron had to shout above the noise of routine facility maintenance. Two 60-foot blue silos at the front of the plant hold processed meal, he said. To the left, in a large ventilation structure, air-scrubbers wash vapor with chlorinated water. A thermal oxidizer burns additional odors at 1,200 degrees Fahrenheit, he said. With a hose, Cameron sprayed a
chlorinated, mint-smelling foam that also reduced odor.
http://planet.wwu.edu/winter05/invisible.htmIn the rendering process, she says, no testing is conducted to detect drugs, pathogens, heavy metals or pesticides. As well, she says there are now serious concerns that pets are at risk of dying from mad cow disease and various forms of cancer from eating rendered foods. Martin says most commercial pet food is garbage.
http://www.jordemm.com/article5.htmTo prevent condemned meat from being rerouted and used for human consumption, government regulations require that meat be "denatured" before removal from the slaughterhouse and shipment to rendering facilities. In my time as a veterinary meat inspector, we denatured with carbolic acid (a potentially corrosive disinfectant) and/or creosote (used for wood-preservation or as a disinfectant). Both substances are highly toxic. According to federal meat inspection regulations, fuel oil, kerosene, crude carbolic acid and citronella (an insect repellent made from lemon grass) are all approved denaturing materials.
Condemned livestock carcasses treated with these chemicals can become meat and bone meal for the pet food industry. Because rendering facilities are not government-controlled, any animal carcasses can be rendered;even dogs and cats. As Eileen Layne of the CVMA told the Chronicle, "When you read pet food labels, and it says "meat and bone meal", that's what it is: cooked and converted animals, including some dogs and cats."
http://www.frrhealthypet.com/id35.html