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Provedor de dados:  R. Bras. Zootec.
País:  Brazil
Título:  Evaluation of ruminal degradation profiles of forages using bags made from different textiles
Autores:  Valente,Tiago Neves Pereira
Detmann,Edenio
Queiroz,Augusto César de
Valadares Filho,Sebastião de Campos
Gomes,Daiany Iris
Figueiras,Janderson Florêncio
Data:  2011-11-01
Ano:  2011
Palavras-chave:  F57
In situ method
Non-woven textile
Nylon
Resumo:  The objective of this study was to evaluate the in situ degradation profiles of dry matter (DM) and neutral detergent fiber (NDF) of different forages using nylon (50 µm), F57 (Ankom®) and non-woven textile (NWT - 100 g/m²) bags. Eight forage samples were used: sugarcane, corn silage, elephant grass cut at 50 and 250 days of regrowth, corn straw, signal grass hay, coast cross hay, and fresh alfalfa. Samples were incubated for 0, 3, 6, 12, 18, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, and 312 hours. Two bags of each textile were used at each incubation time, totaling 768 bags, using two crossbred Holstein × Zebu steers fitted with ruminal canullae. There was difference in the common rate of lag and degradation (λ) of DM for all forages, except for sugarcane. In general, higher λ estimates were obtained using nylon, followed by NWT and F57. Concerning NDF degradation profiles, differences in λ were observed for all forages. Greater estimates were obtained using nylon. Degradation profiles of DM and NDF must not be evaluated using F57 and NWT. These textiles underestimate the degradation rate due to constraints regarding exchange between bags' content and rumen environment.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100039
Editor:  Sociedade Brasileira de Zootecnia
Relação:  10.1590/S1516-35982011001100039
Formato:  text/html
Fonte:  Revista Brasileira de Zootecnia v.40 n.11 2011
Direitos:  info:eu-repo/semantics/openAccess
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