- -

Dietary effect of short-chain organic acids on growth performance, mortality and development of intestinal lymphoid tissues in young non-medicated rabbits

RiuNet: Institutional repository of the Polithecnic University of Valencia

Share/Send to

Cited by

Statistics

Dietary effect of short-chain organic acids on growth performance, mortality and development of intestinal lymphoid tissues in young non-medicated rabbits

Show simple item record

Files in this item

dc.contributor.author Romero, Carlos es_ES
dc.contributor.author García Rebollar, Pilar es_ES
dc.contributor.author Dal Bosco, Alessandro es_ES
dc.contributor.author Castellini, Cesare es_ES
dc.contributor.author Cardinali, Raffaella es_ES
dc.date.accessioned 2011-10-19T12:49:54Z
dc.date.issued 2011
dc.identifier.issn 1257-5011
dc.identifier.uri http://hdl.handle.net/10251/12208
dc.description.abstract [EN] This work aimed to test the effect of a dietary inclusion of formic and citric acids on growth performance, mortality, jejunal histology and development of intestinal lymphoid tissues in growing non-medicated rabbits. For that purpose, a diet including the acids (diet A) was compared to a control diet (diet C). Sixty rabbits weaned at 28 days were submitted to each diet. At 56 and 77 days, ten rabbits were slaughtered to assess caecal traits, jejunal histology and follicular development in the caudal ileal Peyer's patch and in the appendix. In the 56-77 d period, average daily gain of rabbits fed diet A was greater than that of control rabbits (48.0 vs. 43.9 g, P=0.019). Mortality rate was not affected by the diet (6.12% on average). Caecal pH was lower at 77 than at 56 days (6.02 vs. 6.19, P=0.016). The concentration of ammonia in the caecal contents increased from 9.62 to 14.2 mmol/l (P=0.003) when rabbits reached 77 days of age. The appendix was heavier (9.75 vs. 4.30 g, P<0.001), longer (13.3 vs. 10.4 cm, P<0.001) and wider (1.74 vs. 1.45 cm, P=0.006) at 77 than at 56 days. Rabbits of 56 days of age fed diet C had shorter villi than the mean value of the other three treatments (662 vs. 807 µm, P<0.001). In the Peyer`s patch, the average follicle area was greater at 77 than at 56 days of age (118 vs. 88.4 x 103 µm2, P<0.001) and was also greater in rabbits fed diet C than in those fed diet A (109 vs. 97.5 x 103 µm2, P=0.049). In the appendix, no differences on the average follicle area were found at 56 days of age (115 x 103 µm2) whereas, at 77 days, the area increase was higher for rabbits fed diet C than for those fed diet A (95.5 vs. 50.8%, P<0.001). In conclusion, including formic and citric acids in growing rabbit diets improves weight gain, has a trophic effect on the jejunal mucosa and controls the development of gut-associated lymphoid tissues. es_ES
dc.language Inglés es_ES
dc.publisher Editorial Universitat Politècnica de València es_ES
dc.relation.ispartof World Rabbit Science
dc.rights Reserva de todos los derechos es_ES
dc.subject Fattening rabbits es_ES
dc.subject Growth performance es_ES
dc.subject Gut histology es_ES
dc.subject Health status es_ES
dc.subject Lymphoid tissue es_ES
dc.subject Organic acids es_ES
dc.title Dietary effect of short-chain organic acids on growth performance, mortality and development of intestinal lymphoid tissues in young non-medicated rabbits es_ES
dc.type Artículo es_ES
dc.date.updated 2011-10-18T13:13:11Z
dc.identifier.doi 10.4995/wrs.2011.866
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Romero, C.; García Rebollar, P.; Dal Bosco, A.; Castellini, C.; Cardinali, R. (2011). Dietary effect of short-chain organic acids on growth performance, mortality and development of intestinal lymphoid tissues in young non-medicated rabbits. World Rabbit Science. 19(3):133-142. doi:10.4995/wrs.2011.866 es_ES
dc.description.accrualMethod SWORD es_ES
dc.relation.publisherversion http://doi.org/10.4995/wrs.2011.866
dc.description.upvformatpinicio 133
dc.description.upvformatpfin 142
dc.description.volume 19
dc.description.issue 3
dc.identifier.eissn  1989-8886
dc.identifier.eissn 1989-8886 es_ES


This item appears in the following Collection(s)

Show simple item record