Morbos, C. E., Bantugan, S. C., & Bestil, L. C. (2018). Dried Poultry Manure as Non-Protein Nitrogen Additive of Napier Grass (Pennisetum purpureum Schumach) Silage Fed to Sheep. Annals of Tropical Research, 39(2), 67–77. https://doi.org/10.32945/atr3926.2017