Consulta: subjectFacets:"Ussing chamber"
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Absorption and metabolism of volatile fatty acids by rumen and omasum
Provedor de dados: 64
Autores: Daniel,João Luiz Pratti; Resende Júnior,João Chrysostomo de.
Volatile fatty acids (VFA) absorption and metabolic capacity of rumen and omasum were compared, in vitro. Fragments of rumen wall and omasum laminae were taken from eight adult crossbred bovines. An isolated fragment of the mucosa was fitted in a tissue diffusion chamber. Valeric acid and CrEDTA were added to ruminal fluid and placed on the mucosal side and buffer solution was placed on the serosal side. Fractional absorption rates were measured by exponential VFA:Cr ratio decay over time. Metabolism rate was determined as the difference between VFA absorbed and VFA which appeared on the serosal side over time. Mitotic index was higher in omasum (0.52%) than in rumen epithelium (0.28%). VFA fractional absorption rate was higher in omasum (4.6%/h.cm²) than...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Morphology; Physiology; Bovine; Ussing chamber; Forestomach.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000100012