Influence of hexamine and sodium nitrite in combination with sodium benzoate and sodium propionate on fermentation and hygienic quality of wilted and long cut grass silage

acide formique acide lactique acido formico additif aux aliments des animaux aditivos de piensos agent de conservation ammonia ammoniac buffering capacity calidad carbohidratos carbohydrates clostridium deterioration deterioro ensilado ensilage (produit) ensilage (traitement) ensilaje feed additives fermentation festuca festuca pratensis formic acid glucide lactic acid lolium lolium perenne nitrite nitrites nitritos phleum phleum pratense preservadores preservatives propionate propionates propionatos quality silage silage making sodio sodium