Grain and soya are the company's biggest costs in terms of feed for the chickens.
Richard is a pig farmer and feeds his stock on pellets which contain 20% soya.
The economy has been driven by huge hydroelectric schemes and the world's increasing demand for soya.
The variety of soya now being planted there did not exist five years ago.
Nearly 60% of Brazil's exports to China are primary goods, largely soya and iron ore.
And international prices for its wheat and soya crops have recently risen after a long slump.
Earlier this year Lula said farmers could sell, just this once, the soya they had harvested.
There are websites for each of the crops covered: soya, wheat, coffee and aquaculture (shrimp).
Brazil, the world's second-biggest soya producer, is to allow the sale of genetically modified soyabeans .
It all depends on whether products like sugar, soya and cotton are included on the list.
Surprisingly (and gratifyingly), adding a bit of soya to a hamburger may actually improve its flavour.
The alternatives to silicone include saline -salt water - filled pads, or soya-based implants.
Soya beans and corn make oil and animal feed, as well as ethanol, to some controversy.
The same applies to fruit orchards or cattle fences uprooted to make way for soya.
Several hundred thousand Brazilian residents are responsible for much of the biggest export, soya beans.
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By moving northwards into the Amazon basin, soya farmers are also driving ranchers deeper into the rainforest.
In Colombia drought has parched 5, 000 square kilometres of pasture and 2, 000 of maize, sorghum and soya.
DNA. Only a handful of approved genetic foods are selling in Europe, mainly commodity crops like soya.
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She said a study carried out last year had found no difference between soya milk and cow's milk.
Brazil hopes for a record harvest of grain (including soya) of 84m tonnes, up 9% on last year.
That soya is imported - much of it from the US - and so it will be GM.
Much Soya, found in many foods, is modified and much bread is nowadays produced with a genetically-modified yeast.
For soya, some places saw improvements, some saw damage, with no real net effect on the global scale.
And as they munch soya steaks, diners relish new evidence of the health benefits of eating less red meat.
Rising demand in Asia for soya, beef and orange juice offers the scope for producing more without causing gluts.
In addition to being cheaper than meat, soya has (at least in America) the added advantage of being marketable.
The researchers were thus able to determine the precise chemical profiles of the smells of soya-based and beef-based hamburgers.
Brazilian farmers still seethe over last year's rejection by China of soya shipments costing hundreds of millions of dollars.
Heather Payne, of the Infant and Dietetic Food Association, said only a small percentage of UK mothers used soya milk.
This week the wheat and soya crops in the pampa humida, Argentina's breadbasket, west of Buenos Aires, were in danger.
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