Indicators and collection methodology evaluations to estimate the nutrients digestibility on Buffaloes / Avaliação de indicadores e metodologia de coleta para estimativa da digestibilidade de nutrientes em bubalinos
AUTOR(ES)
Luciana Felizardo Pereira Soares
DATA DE PUBLICAÇÃO
2010
RESUMO
Dry fecal matter production has been estimated from neutral detergent indicators on indigestible fiber (iNDF), acid detergent fiber (iADF), indigestible dry matter (DMi), that were incubated for 144 hours and 288 hours, as well as chromium oxide (Cr2O3) and purified isolated lignin and enriched (LIPE) in two sampling schemes (3 and 5 days) on buffaloes. Five geldings animals were used with average weight of 300 kg and feed with Cameroon grass(Pennisetum purpureum Schumacher). The experimental design was completely randomized (splitplot). The production of fecal dry matter (PFDM) was overestimated using Cr2O3, iADF 144 h, iNDF 144 h, iNDF 288 h and MSi144, while the iADF 288 h, DMi 288 h and LIPE do not differ from the total sampling. The same result was observed for dry matter digestibility (DMD). When comparing sampling periods (3 or 5 days) no differences were found to DMS and PFDM, which demonstrate that the sampling period of 3 dayscan be used to estimate the production of dry fecal matter. The use of LIPE, iADF and DMi as indicators (the last incubated for 288 h on rumen) are more adequate for the dry fecal matter estimation, as the digestibility determination of nutrients using a three-day fecal sampling strategy.
ASSUNTO(S)
time of collection digestibilidade lipe nutrição animal buffalo zootecnia iadf lipe tempo de coleta bubalino fdai
ACESSO AO ARTIGO
http://200.17.137.108/tde_busca/arquivo.php?codArquivo=590Documentos Relacionados
- Assessment of indicators and collection methodology to estimate nutrient digestibility in buffaloes
- Período de coleta de urina e de fezes para avaliação da excreção de creatinina, produção microbiana e digestibilidade aparente dos nutrientes em Nelore
- Comparação de diferentes indicadores com método de coleta total para determinação da digestibilidade aparente de diferentes dietas para eqüinos
- Estimativa da digestibilidade aparente de nutrientes em dietas para eqüinos, com o uso de óxido crômico e indicadores internos
- Indicadores para estimativa da digestibilidade parcial em bovinos