ABSTRACT Two experiments were performed to evaluate snaplage ensiling additives and determine the effects of feeding snaplage to lambs. In Exp. 1, grains, ears and husk from maize harvested at the R4 phenological stage were ensiled (65.3% DM content) in 30 min-silos in a completely randomised design with the following treatments: control (CON); microbial inoculant (INO), (Lactobacillus plantarum and Propionibacterium acidipropionici) at 4 g/ton of ensiled material; and organic acids (OA), a blend of organic acids at 2 g/kg of ensiled material. In Exp. 2, nine lambs were used in a 3 × 3 Latin square design. Lambs were randomly assigned to the following diets: control (CON); rehydrated maize silage (RHC), diet containing 380 g/kg RHC; or snaplage (SNAP), diet containing 770 g/kg of SNAP. Snaplage with OA exhibited greater DM recovery, lactic acid bacteria count and DM content than other treatments. Snaplage with INO had the lowest counts of aerobic bacteria and mould. Lambs-fed SNAP had greater nutrient intake and digestibility, ruminal short-chain fatty acid concentrations, and N retention compared to other groups. Incorporating OA to snaplage decreased DM losses and improved microbiological quality and chemical composition. Feeding snaplage to lambs may improve DM intake and apparent digestibility.