Data/hora: 04/06/2024 11:52:11

Biblioteca(s): | Embrapa Caprinos e Ovinos.
Data corrente: | 18/10/2016
Data da última atualização: | 20/10/2016
Autoria: | KUDO, H.; CHENG, K.-J.; MAJAK, W.; HALL, J. W.; COSTERTON, J. W.
Título: | Degradation of mimosine in rumen fluid from cattle and sheep in Canada.
Ano de publicação: | 1984
Fonte/Imprenta: | Canadian Journal of Animal Science, v. 64, n. 4, p. 937-942, Dec. 1984.
DOI: | 10.4141/cjas84-105
Idioma: | Inglês
Conteúdo: | The microbial detoxification of mimosine was detected during in vitro studies with rumen fluid from cattle and sheep in Canada. The toxic amino acid, a component of Leucaena leucocephala (Leguminosae), was degraded rapidly (average rate 2.17 g mL 1 h -1) by rumen inocula from sheep on a concentrate diet but inocula from sheep on cubed hay showed much less activity (0.44 g mL -1 h -1). Mimosine was also metabolized by rumen microorganisms from steers on concentrate rations (2.88 g mL -1 h -1) but rates were lower when inocula originated from cattle fed hay, pasture or silage diets (< 1.87 g mL 1 h -1). Our results show that in Canada, rumen fluid contains microorganisms capable of mimosine degradation and that the rates of detoxification are enhanced by rumen microbiota from sheep and cattle on concentrate diets.
Palavras-Chave: | Detoxification; Mimosina.
Thesagro: | Bovino; Leucaena Leucocephala; Microrganismo; Ovino; Rúmen.
Thesaurus Nal: | Cattle; Mimosine; Rumen microorganisms; Sheep.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
Registro original: | Embrapa Caprinos e Ovinos (CNPC)
Exemplares: | CNPC - (31762-1) - ADD - AP - PP -  -  -  - DIS