Produção de Amônia na Fermentação in Vitro de Rações com Levedura, Uréia ou Farelo de Algodão

• Autor(a) principal: Sampaio, Alexandre Amstalden Moraes
• Data de Publicação: 2000
• Outros Autores: De Figueiredo Vieira, Paulo [UNESP], De Brito, Rodolfo Marques [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/230963
• topic: Ammonia; Cottonseed meal; Dry yeast; Protein sources; Ruminal fermentation; Urea

The objective of this trial was to evaluate the in vitro ammonia (N-NH 3) production in fermentation of diets with different protein sources (dry yeast, urea and cottonseed meal) used for ruminants diets. The data relative to the N-NH 3 production measured in the first hour of incubation, showed differences between diets with cottonseed meal and dry yeast, compared with diets with urea, with values of 7.52; 8.66; and 29.84 mg N-NH 3/100 mL of ruminai fluid, respectively. The same pattern was observed until 12 hours of fermentation, with values of 1.05; 1.57; and 8.57 mg N-NH 3/100 mL. The analysis of data related to the 12 hourly sample of fermentation showed the trend of decreasing N-NH 3/100 mL concentration of ruminal fluid, reaching the lower values on 12 hours of fermentation.