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Enzimas exógenas em dietas extrusadas para cães contendo farelo de soja

Authors: Tortola, Letícia;

Enzimas exógenas em dietas extrusadas para cães contendo farelo de soja

Abstract

Soybean meal (SBM) was evaluated as a protein substitute of poultry byproduct meal (PM) in extruded dog foods, as well the effects of exogenous enzymes supplementation on nutrient digestibility, fermentation end products formation, fecal microbiota composition and postprandial urea response. Two kibble isonutritive diets were used in two trials: PM based diet (28,9% of PM; soybean hulls as a fiber source); SBM based diet (29,9% of SBM). On experiment 1, the SBM diet was unfolded into three diets: SBM-0, without enzyme addition; SBM-1, covered after extrusion with 7,500Uprotease/kg and 45Ucelulase/kg; SBM-2, covered with 15,000Uprotease/kg and 90Ucelulase/kg. On experiment 2, the SBM diet was unfolded into three diets: SBM-0; SBM-1, covered with 140Uprotease/kg; 8Ucellulase/kg, 800Upectinase/kg, 60Uphytase/kg, 40Ubetaglucanase/kg and 20Uxylanase/kg; SMB-2, covered with 700Uprotease/kg, 40Ucellulase/kg, 4000Upectinase/kg, 300Uphytase/kg, 200U betaglucanase/kg and 100Uxylanase/kg. Each experiment followed a block design with two blocks of 12 health beagles, and 6 dogs per diet. Data was submitted to analysis of variance and means compared by orthogonal and polynomial contrasts (P0.05). The use of SBM resulted in increased faecal moisture and faecal production (P<0.05). High concentration of propionate, acetate and lactate, and lower amounts of ammonia were found in the feces of dogs fed SBM (P<0.05). In experiment 2 the addition of enzymes increased fecal concentration of propionate, acetate and total SCFA (P<0.05). Postprandial urea pick response and area under the curve were higher for dogs fed SBM diets (P<0.05). Soybean meal resulted in low faecal concentrations of total aerobes and total anaerobes (P<0.05) ... (Complete abstract click electronic access below)

Farelo de soja (FS) foi avaliado como substituto protéico da farinha de vísceras de frango (FVF) em rações extrusadas para cães, bem como a ação de enzimas exógenas sobre a digestibilidade dos nutrientes, formação de produtos de fermentação intestinal, composição da microbiota das fezes e resposta pós-prandiais de ureia. Duas formulações isonutritivas foram usadas em dois ensaios: FVF (28,9% de FVF, casca de soja como fonte de fibra) e dieta a base de FS (29,9% de FS). No experimento A, a dieta FS foi desdobrada em três dietas: FS-0, sem adição de enzimas; FS-1, 7.500U/kg de protease e 45U/kg de celulase; FS-2, 15.000U/kg de protease e 90U/kg de celulase, ambas adicionadas por cobertura após a extrusão. No experimento B, a dieta FS foi desdobrada em três dietas: FS-0, FS-1,140U/kg de protease, 8U/kg de celulase, 800U/kg de pectinase, 60U/kg de fitase, 40U/kg de betaglucanase e 20U/kg de xilanase; FS-2, 700U/kg de protease, 40U/kg de celulase, 4000U/kg de pectinase, 300U/kg de fitase, 200U/kg de betaglucanase e 100U/kg de xilanase, ambas adicionadas por cobertura após a extrusão. Cada experimento seguiu um delineamento em blocos com dois blocos de 12 cães beagle sadios e seis cães por dieta. Os dados foram submetidos à análise de variância e as médias comparadoas por contrastes ortogonais e polinomiais (p0,05). O uso de FS resultou em aumento da umidade fecal e da produção fecal (p<0,05). Altas concentrações de acetato, propionato e lactato e menor quantidade de amônia foram encontrados nas fezes de cães alimentados com FS (p<0,05). No experimento B, a adição de enzimas aumentou a concentração fecal de acetato, propionato e AGCC totais (p<0,05)...

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Pós-graduação em Medicina Veterinária - FCAV

Keywords

Ingrediente, Ingredients, Oligossacarideos, Oligosaccharides, Pets, Animais de companhia

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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