The researchers studied how feeding cattle supplements affects their growth in deferred pastures. They tested different supplement doses and grazing periods on the grass structure and cattle production. They found that as the grazing period increased, the amount of grass and its quality decreased. However, the protein content remained constant. Cattle gained more weight and had higher stocking rates when given higher doses of supplements. Overall, supplementing cattle with concentrates can improve their production in deferred pastures, especially during winter when grass quantity and quality decrease.