Effects of age and mannanoligosaccharides supplementation on production of volatile fatty acids in the caecum of rabbits

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dc.contributor.authorGuedes, Cristina
dc.contributor.authorMourão, José Luís
dc.contributor.authorSilva, Severiano
dc.contributor.authorGomes, Maria José
dc.contributor.authorRodrigues, M. M.
dc.contributor.authorPinheiro, Victor
dc.date.accessioned2013-08-19T15:28:13Z
dc.date.available2013-08-19T15:28:13Z
dc.date.issued2009
dc.description.abstractThis trial studied the effect of including mannanoligosaccharides (MOS, Bio-Mos®, Alltech Inc., USA) in the diet on the caecal volatile fatty acids (VFA) and pH of rabbits from 34 to 90 days of age. Three experimental diets were compared: control diet, zinc bacitracin (ZnBac) diet (control diet with 0.1 g ZnBac/kg feed) and MOS diet (control diet with 2.0 g MOS/kg feed). Rabbits were slaughtered at 34, 48, 69 and 90 days of age and caecal contents were collected and analyzed for dry matter, pH and VFA concentration. The empty caecum and caecal contents weights relative to live weight were also determined. Age affected (P<0.0001) VFA concentration and pH values in the caecum. The pH decreased with age whereas VFA concentration increased. Rabbits fed MOS had higher (P<0.05) VFA and tended (P=0.098) to had lower pH in the caecum than rabbits fed ZnBac and control diets. Acetic, propionic and butyric acids concentrations in the caecum increased with MOS but its molar proportions were similar among diets. Diet had no effect on empty caecum weight and caecal contents weight and dry matter concentration. There was no interaction effect between diet and age. From 34 to 90 days of age, VFA production was higher (P<0.05) in the caecum of rabbits fed MOS than in those fed ZnBac diet and control diet. The addition of MOS to the diet increased the VFA concentration in the caecum of growing rabbits from 34 to 90 days of age.por
dc.identifier.urihttp://hdl.handle.net/10348/2577
dc.language.isoengpor
dc.peerreviewedyespor
dc.relation.ispartofCECAV - Centro de Ciência Animal e Veterináriapor
dc.rightsrestricted accesspor
dc.subjectMannanoligosaccharidespor
dc.subjectVolatile fatty acidspor
dc.subjectCaecumpor
dc.subjectRabbitspor
dc.titleEffects of age and mannanoligosaccharides supplementation on production of volatile fatty acids in the caecum of rabbitspor
dc.typejournal articlepor
degois.publication.firstPage330por
degois.publication.issue3-4por
degois.publication.lastPage336por
degois.publication.titleAnimal Feed Science and Technologypor
degois.publication.volume150por
dspace.entity.typePublicationen
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