ZURICH, Nov 14 (Reuters) - Agrochemicals and seeds

company Syngenta is working with fast food giant McDonald's Corp

and one of its meat suppliers to supply a type of corn

which it says will reduce the gaseous emissions from cattle.

Syngenta's Enogen corn, a genetically modified crop,

contains an enzyme which quickly converts starch to useable

sugars.

This allows the cattle to reach market weight quicker and so

reduces the greenhouse gases they produce before they are

slaughtered and their meat is made into burgers.

Syngenta said a herd of 1,000 animals using the corn as feed

would produce 196 less tons of CO2, the same as removing 35 cars

from the road for a year.