Materia de http://agriperfiles.agri-d.net/individual/AS-pub-E4264EE35AED802A3958766D56FCFA04 Artículo académico Nitrogen and phosphorous balance of cows offered different amounts of kikuyu (Pennisetum clandestinum) and suplemented with oats (Avena sativa) silage Artículo académico