Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.5/8512
Título: Suplementação com xilanase de regimes alimentares à base de milho e soja para frangos de carne
Autor: Mendes, Ana Rita Almeida
Orientador: Lordelo, Maria Madalena dos Santos
Palavras-chave: broilers
maize
soya
non-starch polysaccharides
enzyme supplementation
xylanase
Data de Defesa: 2015
Editora: ISA/UL
Citação: Mendes, A.R.A. - Suplementação com xilanase de regimes alimentares à base de milho e soja para frangos de carne. Lisboa: ISA, 2015, 78 p.
Resumo: Maize and soya, feeds considerer of low viscosity and high quality, contain some non-starch polysaccharides and these may slightly raise the digesta’s viscosity and decrease broiler performance. Enzyme supplementation may attenuate these effects. In the present study four treatments were used (AE – High Energy; AEX – High Energy + Enzyme; BE – Low Energy; BEX – Low Energy + Enzyme) in maize-soya diets with 3040 kcal and 2941 kcal of metabolizable energy per kg of feed, to evaluate the effect of the use of a commercial xylanase. Mortality, amount of feed ingestion, body weight, average body weight gain and dimensions of the digestive tract organs were registered. An improvement in body weight and in body weight gain was observed for the animals of the BEX treatment. There was a decrease in the feed conversion ratio for the animals of the BEX treatment when compared to the animals of the BE treatment. Results indicate that this enzyme may have a positive effect in broilers fed maize-soya diets, mainly in low energy treatments.
Descrição: Mestrado em Engenharia Zootécnica - Produção Animal - Instituto Superior de Agronomia / Faculdade de Medicina Veterinária
URI: http://hdl.handle.net/10400.5/8512
Aparece nas colecções:BISA - Dissertações de Mestrado / Master Thesis

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