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PREDICTION OF NUTRITIVE VALUE OF DIETS FOR RABBITS USING AN IN VITRO GAS PRODUCTION TECHNIQUE

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PREDICTION OF NUTRITIVE VALUE OF DIETS FOR RABBITS USING AN IN VITRO GAS PRODUCTION TECHNIQUE

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dc.contributor.author Stanco, G.
dc.contributor.author Di Meo, C.
dc.contributor.author Calabrò, C.
dc.contributor.author Nizza, A.
dc.date.accessioned 2011-02-23T08:24:38Z
dc.date.available 2011-02-23T08:24:38Z
dc.date.issued 2003
dc.identifier.issn 1257-5011
dc.identifier.uri http://hdl.handle.net/10251/9935
dc.description.abstract [EN] Thirty-one mixed diets for rabbits (DE concentration from 8.44 to 12.29 MJ/kg) were used to predict the digestibility of dry matter (dDM), organic matter (dOM), gross energy (dGE) and digestible energy concentration (DE) from some in vitro gas production parameters, using frozen caecal content from rabbits. Step-wise multiple regression analysis showed that the most significant contribution to the variation expressed by dDM, dOM, dGE and DE arises from crude fibre content (CF). Multiple regression analysis considered more than one independent variable, but it gave only marginally improvements in terms of the accuracy of digestibility prediction. The best equations in terms of R2 and residual standard deviation (RSD) values were: DE (MJ/kg DM) = 0.75 - 0.291 CF - 0.208 ADL + 0.856 GE (R2 = 0.895, RSD 0.279) and dOM (%) = 91.8 - 1.756 CF - 1.283 ADL (R2 = 0.849, RSD 1.655) where CF = crude fibre (%DM), ADL = acid detergent lignin (%DM), GE = gross energy (MJ/kg DM). Dry matter loss (DMl, %) was the in vitro gas production parameter which correlated most closely with dDM, dOM, dGE and DE. The best prediction equations were: DE (MJ/kg DM) = -3.14 + 0.217 DMl + 0.114 B (R2 = 0.734, RSD 0.437) and dOM (%) = - 6.80 + 1.078 DMl + 0.456 B (R2 = 0.691, RSD 2.368), where B is the incubation time (h) at half potential gas. When data of the chemical composition and from fermentation parameters were included concurrently in the model, the most significant contribution to the variation explained of dDM, dOM, dGE and DE still arose from CF. These results suggest that in vitro gas production could be an interesting method of predicting the nutritive value of rabbit diets, but further investigations are required to increase caecal inoculum standardisation and its prediction ability. es_ES
dc.language Inglés es_ES
dc.publisher World Rabbit Science. ICTA. UPV es_ES
dc.relation.ispartof World Rabbit Science
dc.rights Reconocimiento - No comercial (by-nc) es_ES
dc.subject Rabbits es_ES
dc.subject Compound diets es_ES
dc.subject Gas production es_ES
dc.subject Digestibility prediction es_ES
dc.title PREDICTION OF NUTRITIVE VALUE OF DIETS FOR RABBITS USING AN IN VITRO GAS PRODUCTION TECHNIQUE es_ES
dc.type Artículo es_ES
dc.date.updated 2011-02-23T08:12:33Z
dc.identifier.doi 10.4995/wrs.2003.508
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Stanco, G.; Di Meo, C.; Calabrò, C.; Nizza, A. (2003). PREDICTION OF NUTRITIVE VALUE OF DIETS FOR RABBITS USING AN IN VITRO GAS PRODUCTION TECHNIQUE. World Rabbit Science. 11(4):199-210. doi:10.4995/wrs.2003.508 es_ES
dc.relation.publisherversion https://doi.org/10.4995/wrs.2003.508
dc.description.upvformatpinicio 199
dc.description.upvformatpfin 210
dc.description.volume 11
dc.description.issue 4
dc.identifier.eissn 1989-8886 es_ES


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