2008
DOI: 10.1590/s0100-204x2008000600012
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Enzimas exógenas no desempenho e na digestibilidade ileal de nutrientes em frangos de corte

Abstract: Resumo -O objetivo deste trabalho foi avaliar o efeito da combinação de fitase e do complexo amilase, protease e xilanase, em dietas de milho e soja, formuladas com redução e sem redução dos níveis de energia, cálcio e fósforo sobre o desempenho e a digestibilidade ileal de nutrientes, em frangos de corte. Foi utilizado o delineamento inteiramente casualizado, com esquema fatorial 2x2, com duas dietas-controle: com redução e sem redução dos nutrientes, e duas suplementações das enzimas (sem adição e com adição… Show more

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Cited by 17 publications
(17 citation statements)
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References 15 publications
(14 reference statements)
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“…Although no statistical difference was observed among treatments for final weight, total length, biomass and specific growth rate, it was observed that the inclusion of 0.2% protease led to a slight improvement in the cited variables, possibly because the additive used acted by supplementing the action of endogenous enzymes, releasing more tripeptides, dipeptides and free amino acids, favoring the absorption of these nutrients and thus animal performance, as suggested for fish (OLIVEIRA et al, 2007), birds (BARBOSA et al, 2008), swine (NERY et al, 2000) and ruminants (FAGUNDES et al, 2008).…”
Section: Exogenous Protease In Dietmentioning
confidence: 84%
See 1 more Smart Citation
“…Although no statistical difference was observed among treatments for final weight, total length, biomass and specific growth rate, it was observed that the inclusion of 0.2% protease led to a slight improvement in the cited variables, possibly because the additive used acted by supplementing the action of endogenous enzymes, releasing more tripeptides, dipeptides and free amino acids, favoring the absorption of these nutrients and thus animal performance, as suggested for fish (OLIVEIRA et al, 2007), birds (BARBOSA et al, 2008), swine (NERY et al, 2000) and ruminants (FAGUNDES et al, 2008).…”
Section: Exogenous Protease In Dietmentioning
confidence: 84%
“…There are three basic reasons for using enzymes in animal feeding: 1 -eliminate anti-nutritional factors present in several feed ingredients; 2 -provide enzymes that animals are unable to synthesize at the required rates; 3 -supplement enzymes naturally produced by animals, particularly in young animals with immature digestive systems, in which endogenous enzyme production may be inadequate (BEDFORD;PARTRIDGE, 2001).…”
Section: Introductionmentioning
confidence: 99%
“…aves (10,24 e 8,64%, nas fases inicial e total, respectivamente) quando comparado ao grupo do CN sem enzimas. A melhora no desempenho das aves com o uso de enzimas nas dietas tem sido evidenciada em vários estudos (ZANELLA et al, 1999;COWIESON & ADEOLA, 2005;OLUKOSI et al, 2007;BARBOSA et al, 2008;SANTOS et al, 2008). Entretanto, os benefícios no desempenho das aves com a utilização da combinação de enzimas é reflexo não apenas da melhoria no aproveitamento dos nutrientes, mas também da melhora no equilíbrio da microbiota bacteriana intestinal das aves.…”
Section: Resultsunclassified
“…According to Barbosa et al (2008), ADCDM reflects nutrient digestibility, i.e., higher coefficients indicate a higher rate of nutrient absorption from the diet. Thus, the lower ADCDM obtained in the diets without antibiotics may be explained by the fact that the broilers were not able to metabolize the nutrients present in the feed and, therefore, continued to ingest feed to meet their needs.…”
Section: Resultsmentioning
confidence: 99%