Mixed ensiling of Stylosanthes guianensis and Pennisetum sinese is an alternative method to improve the nutrient composition of feeds for healthy and green ruminant production in the tropics. This method can provide a sustainable solution for the production of high-quality animal feed, reducing the environmental impact of traditional feed production methods. By combining the nutritional benefits of both plants, this approach can promote healthy and green ruminant production, contributing to a more sustainable food system.