As the seasons of the year change, so does the veld. This means that what is lacking in veld in winter, is different from what is lacking in summer. Supplements help to provide animals with only what is lacking. This is why it is vital for producers to know what is lacking in that particular season, so that they can give their animals the right supplements at the right time. Dr Josef van Wyngaard from Voermol talks about lick supplementation for summer rainfall areas in this instalment of AgriOnAir.