"Livestock producers in southern Brazil are concerned that rising domestic corn prices could cut into their profit margins...Since there is not enough full-season corn produced in southern Brazil to meet the needs of livestock producers, most of the corn utilized by livestock producers in Santa Catarina must be imported from central Brazil, primarily the state of Mato Grosso. All the corn produced in Mato Grosso is grown as safrinha corn and corn supplies should start to improve only after the start of the safrinha corn harvest in June and July...Livestock producers in Santa Catarina utilize 6 million tons of corn annually to produce more than a billion chickens and 12 million hogs, but the state only produces 2.5 million tons of corn..."
http://soybeansandcorn.com/news/Jan14_16-Strong-Corn-Exports-Worry-Livestock-Prodcuers-in-Southern-Brazil


"94% of the safrinha corn was produced in the center-west, southeast, and southern regions of Brazil with Mato Grosso being the number producer followed by Parana...Brazil's first crop of corn is consumed domestically by the livestock industry in southern Brazil while most of Brazil's corn exports come from the safrinha production."
http://soybeansandcorn.com/news/Jan14_16-Safrinha-Corn-Planting-to-Start-in-Brazil-Later-this-Week

The articles seem to imply simultaneously that safrinha crop dominates exports, and that South Brazilian livestock producers rely on the the safrinha crop.