When it comes to selecting what type of forage sorghum to grow there are many different options to choose from. The most commonly available are sorghum x sudan grass hybrids which are lower in prussic acid than traditional straight sorghum varieties. This creates a plant with a higher stem to leaf ratio and lower prussic acid levels allowing it to be grazed at 650 to 800mm high for optimum quality. This is earlier than original varieties, which were suitable for grazing at 800 to 1200mm high.
Other aspects to consider are the maturity of the variety and whether or not it carries the Brown Mid Rib (BMR) gene.