Data/hora: 05/06/2024 18:58:58

Provedor de dados: | 42
País: | Brazil
Título: | Evaluation of methods for the quantification of ether extract contents in forage and cattle feces
Autores: | BARBOSA,MARCÍLIA M.; DETMANN,EDENIO; VALADARES FILHO,SEBASTIÃO C.; DETMANN,KELLY S.C.; FRANCO,MARCIA O.; BATISTA,ERICK D.; ROCHA,GABRIEL C.
Data: | 2017-06-01
Ano: | 2017
Palavras-chave: | Crude fat; Feed analysis; Filter bags; Non-polar compounds.
Resumo: | ABSTRACT The objective of this study was to compare the estimates of ether extract (EE) contents obtained by the Randall method and by the high-temperature method of the American Oil Chemist's Society (AOCS; Am 5-04) in forages (n = 20) and cattle feces (n = 15). The EE contents were quantified by using the Randall extraction or AOCS method and XT4 filter bags or cartridges made of qualitative filter paper (80 g/m²) as containers for the samples. It was also evaluated the loss of particles, and concentration of residual chlorophyll after extraction and the recovery of protein and minerals in the material subjected to extraction. Significant interaction was observed between extraction method and material for EE contents. The EE estimates using the AOCS method were higher, mainly in forages. No loss of particles was observed with different containers. The chlorophyll contents in the residues of cattle feces were not affected by the extraction method; however, residual chlorophyll was lower using the AOCS method in forages. There was complete recovery of the protein and ash after extraction. The results suggest that AOCS method produces higher estimates of EE contents in forages and cattle feces, possibly by providing greater extraction of non-fatty EE.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000301295
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/0001-3765201720160708
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.89 n.2 2017
Fonte: | info:eu-repo/semantics/openAccess