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Effect of increasing lignin in isoenergetic diets at two soluble fibre levels on digestion, performance and carcass quality of growing rabbits

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Effect of increasing lignin in isoenergetic diets at two soluble fibre levels on digestion, performance and carcass quality of growing rabbits

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dc.contributor.author Caisin, L. es_ES
dc.contributor.author Martinez-Paredes, Eugenio es_ES
dc.contributor.author Ródenas Martínez, Luis es_ES
dc.contributor.author Moya, V.J. es_ES
dc.contributor.author Pascual Amorós, Juan José es_ES
dc.contributor.author Cervera Fras, Mª Concepción es_ES
dc.contributor.author Blas Ferrer, Enrique es_ES
dc.contributor.author Pascual, M. es_ES
dc.date.accessioned 2021-04-21T03:31:37Z
dc.date.available 2021-04-21T03:31:37Z
dc.date.issued 2020-04 es_ES
dc.identifier.issn 0377-8401 es_ES
dc.identifier.uri http://hdl.handle.net/10251/165408
dc.description.abstract [EN] To assess the effect of increasing dietary lignin in isoenergetic diets at two soluble fibre (SF) levels on digestion, performance and carcass quality of growing rabbits, four diets were formulated according a 2 x 2 factorial design: low SF-low lignin (LSF/LL), low SF-high lignin (LSF/HL), high SF-low lignin (HSF/LL) and high SF-high lignin (HSF/HL). On average, in HSF diets SF was increased by 49 g/kg DM, mainly replacing starch ( - 53 g/kg DM), and in HL diets lignin was increased by 40 g/kg, mainly reducing starch (-78 g/kg DM), with increasing EE ( + 31 g/kg DM). Two hundred and sixty crossbred weaned rabbits (35 days old) were assigned to the experimental diets, individually housed and fed ad libitum until 63 days of age. Digestibility (from 49 to 53 days old), growth performance (from 35 to 63 days old), carcass quality (at 63 days old) and caecal environment (at 63 days old) were studied in 12, 65, 45 and 16 rabbits per diet, respectively. High SF diets showed higher CTTAD of fibrous fractions ( + 0.206 +/- 0.011, + 0.207 +/- 0.015, + 0.214 +/- 0.011 and + 0.167 +/- 0.015 for aNDFom, ADFom, hemicelluloses and cellulose, respectively, P < 0.001), OM ( + 0.042 +/- 0.004, P < 0.001) and GE ( + 0.055 +/- 0.005, P < 0.001), resulting in high DE content (10.6 vs. 9.30 MJ/kg DM). In contrast, CTTAD of CP was lower ( - 0.023 +/- 0.009, P = 0.013), as well as the DP content (96.9 vs. 103 g/kg DM). This dietary variation reduced the DM content of caecal digesta ( - 28 +/- 3 g/kg, P < 0.001), besides increasing its VFA concentration ( + 18.0 +/- 4.0 mmol/L, P < 0.001) and reducing its pH ( - 0.28 +/- 0.05, P < 0.001). Feed intake and LW gain decreased, with an improvement of feed to gain ratio ( -13.8 %, - 4.7 %, - 9.4 %, respectively; P < 0.001). The proportion of gastrointestinal tract was increased, with a subsequent reduction in dressing out ( + 19 +/- 2 g/kg LW and -15 +/- 2 g chilled carcass weight/kg LW, respectively, P < 0.001). High lignin diets showed lower CTTAD of OM (-0.055 +/- 0.004, P < 0.001) and GE ( - 0.034 +/- 0.005, P < 0.001) without affecting DE and DP contents. This dietary variation increased DM content of caecal digesta ( +21 +/- 3 g/kg, P < 0.001), but did not affect the other caecal digesta traits. Feed intake was higher ( + 4.9 %, P < 0.001), although differences were dependent on the growth phase and the SF level (maximum difference at 35-49 days with low SF diets, + 11.0 %, P < 0.001; minimum difference at 49-63 days with high SF diets, + 1.0 %, P = 0.689), but did not affect LW gain and consequently impaired the feed to gain ratio ( + 5.1 %, P < 0.001). No effect was observed on dressing out, but the dissectible fat proportion increased ( + 6.7 +/- 1.1 g/kg reference carcass weight, P < 0.001). es_ES
dc.description.sponsorship Financial support was provided by the Spanish Ministry of Education and Science (Project AGL2006-07596). es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Animal Feed Science and Technology es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Lignin es_ES
dc.subject Soluble fibre es_ES
dc.subject Growing rabbits es_ES
dc.subject.classification NUTRICION Y BROMATOLOGIA es_ES
dc.subject.classification PRODUCCION ANIMAL es_ES
dc.title Effect of increasing lignin in isoenergetic diets at two soluble fibre levels on digestion, performance and carcass quality of growing rabbits es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.anifeedsci.2020.114396 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MEC//AGL2006-07596/ES/DESARROLLO DE ESTRATEGIAS GLOBALES DE ALIMENTACION Y MANEJO PARA MEJORAR LA SALUD Y EL BIENESTAR EN LAS GRANJAS CUNICOLAS/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ciencia Animal - Departament de Ciència Animal es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Ciencia y Tecnología Animal - Institut de Ciència i Tecnologia Animal es_ES
dc.description.bibliographicCitation Caisin, L.; Martinez-Paredes, E.; Ródenas Martínez, L.; Moya, V.; Pascual Amorós, JJ.; Cervera Fras, MC.; Blas Ferrer, E.... (2020). Effect of increasing lignin in isoenergetic diets at two soluble fibre levels on digestion, performance and carcass quality of growing rabbits. Animal Feed Science and Technology. 262:1-9. https://doi.org/10.1016/j.anifeedsci.2020.114396 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.anifeedsci.2020.114396 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 9 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 262 es_ES
dc.relation.pasarela S\423569 es_ES
dc.contributor.funder Ministerio de Educación y Ciencia es_ES
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