Original ResearchPublished 29 September 2026Nutrient and energy digestibility, mineral status and antioxidant defense in goat wethers and periparturient does supplemented with poplar and willow leavesKaja Helffenstein · Jessica Schwerdtfeger · Solvig Görs · Maciej Durkalec · Janine Kowalczyk · Anja Eggert · Mirja R. Wilkens · Björn KuhlaFrontiers in Animal Sciencedoi 10.3389/fanim.2026.1861647