One of the top "frequently asked questions" is what forages might grow well in silvopastures. Much has already been posted on this forum (dig around a bit) on this topic. The short answer is: "it depends", and "more research is needed". But fortunately, many cool-season forages - particularly grasses, can do quite well in lightly-shaded silvopasture conditions. But there are many variables that will ultimately influence forage production in silvopastures. Soil health, site quality, tree species, rainfall, and of course - solar energy reaching the ground level, are just a few examples. Grazing management will also have a significant influence on forage production in silvopastures, and the manager should keep in mind that more rest and recovery time may be needed between grazings due to lower light & photosynthesis levels.
Plant breeders and seed dealers are starting to take note of the potential for more shade tolerant varieties. Below is an article recently shared by Kings Agriseed Inc.