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Effect of diet supplementation with live yeast Saccharomyces cerevisiae on growth performance, caecal ecosystem and health of growing rabbits

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Effect of diet supplementation with live yeast Saccharomyces cerevisiae on growth performance, caecal ecosystem and health of growing rabbits

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dc.contributor.author Belhassen, T. es_ES
dc.contributor.author Bonai, A. es_ES
dc.contributor.author Gerencsér, ZS. es_ES
dc.contributor.author Matics, ZS. es_ES
dc.contributor.author Tuboly, T. es_ES
dc.contributor.author Bergaoui, R. es_ES
dc.contributor.author Kovacs, M. es_ES
dc.date.accessioned 2016-10-21T09:38:14Z
dc.date.available 2016-10-21T09:38:14Z
dc.date.issued 2016-09-28
dc.identifier.issn 1257-5011
dc.identifier.uri http://hdl.handle.net/10251/72563
dc.description.abstract [EN] The aim of this study was to determine the effect of the live yeast Saccharomyces cerevisiae on the growth performance, caecal ecosystem and overall health of growing rabbits. A control diet was formulated (crude protein: 15.9%; neutral detergent fibre: 31.6%) and another diet obtained by supplementing the control diet with 1 g of Saccharomyces cerevisiae (6.5×109 colony-forming units) per kg of diet. Ninety 35-d old rabbits were allotted into 3 groups: TT (rabbits offered the supplemented diet from 17 d of age onwards), CT (rabbits offered supplemented diet from 35 d) and CC (rabbits fed non-supplemented diet). Body weight (BW) and feed intake were measured weekly and mortality was controlled daily. At 35, 42 and 77 d of age, 6 rabbits from each group were slaughtered and digestive physiological traits, serum clinical chemistry parameters, fermentation traits, and the composition of caecal microbiota examined. At 42 and 56 d of age, 10 rabbits from each group were injected intraperitoneally with 100 μg/animal of ovalbumin and blood samples were collected for examination of plasma immunological parameters. Throughout the experiment (5-11 wk), weight gain and feed intake (37.8 and 112.6 g/d, on av.) were not affected by yeast, except for weight gain in the first week after weaning, which was the highest in TT animals among the 3 groups (48.1 vs. 43.9 and 44.2 g/d for TT, CC and CT, respectively; P=0.012). This may be due to the increased trend in feed intake (P=0.072) in the TT group (96.4 g/d) compared to the others. Mortality (5/90) was low and did not differ among the 3 groups. Treatments had no effect on slaughter traits at the 3 sampling dates (35, 42 and 77 d). Only the weight of the empty caecum (% BW) was higher (P=0.02) in CC (2.2%) and CT (2.3%) than in TT group (1.8%) at 77 d of age. Treatments did not overtly affect the caecal microbiota, although the number of total anaerobic bacteria and Bacteroides were lower (108 and 107/g caecal digesta, respectively) in rabbits from CC group compared to those of CT and TT groups at 42 d of age (P=0.03). No difference between groups was observed for caecal short chain fatty acids profile, blood traits, or IgG and cytokine profile. In conclusion, supplementation of feed with yeast did not modify growth traits and resulted in only a temporary increase in weight gain and a slightly altered caecal microbiota after weaning. es_ES
dc.language Inglés es_ES
dc.publisher Universitat Politècnica de València
dc.relation.ispartof World Rabbit Science
dc.rights Reserva de todos los derechos es_ES
dc.subject Live yeast es_ES
dc.subject Digestive physiology es_ES
dc.subject Growth es_ES
dc.subject Fattening rabbit es_ES
dc.title Effect of diet supplementation with live yeast Saccharomyces cerevisiae on growth performance, caecal ecosystem and health of growing rabbits es_ES
dc.type Artículo es_ES
dc.date.updated 2016-09-30T12:40:30Z
dc.identifier.doi 10.4995/wrs.2016.3991
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Belhassen, T.; Bonai, A.; Gerencsér, Z.; Matics, Z.; Tuboly, T.; Bergaoui, R.; Kovacs, M. (2016). Effect of diet supplementation with live yeast Saccharomyces cerevisiae on growth performance, caecal ecosystem and health of growing rabbits. World Rabbit Science. 24(3):191-200. doi:10.4995/wrs.2016.3991. es_ES
dc.relation.publisherversion https://doi.org/10.4995/wrs.2016.3991 es_ES
dc.description.upvformatpinicio 191 es_ES
dc.description.upvformatpfin 200 es_ES
dc.type.version info:eu repo/semantics/publishedVersion es_ES
dc.description.volume 24
dc.description.issue 3
dc.identifier.eissn 1989-8886


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