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NIRS of body and tissues in growing rabbits fed diets with different fat sources and supplemented with Curcuma longa

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NIRS of body and tissues in growing rabbits fed diets with different fat sources and supplemented with Curcuma longa

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dc.contributor.author Peiretti, Pier Giorgio es_ES
dc.contributor.author Meineri, Giorgia es_ES
dc.contributor.author Masoero, Giorgio es_ES
dc.date.accessioned 2013-07-11T09:55:07Z
dc.date.available 2013-07-11T09:55:07Z
dc.date.issued 2013-07-01
dc.identifier.issn 1257-5011
dc.identifier.uri http://hdl.handle.net/10251/31039
dc.description.abstract [EN] A portable Near Infrared Reflectance Spectroscopy (NIRS) instrument was applied to 40 growing rabbits to determine body and tissue differences induced by experimental factors. The rabbits were examined at 2 live sites, in 7 warm carcass tissues and in longissimus dorsi muscle samples prepared in ethanol. For this purpose, the method was applied in a bi-factorial experiment concerning the dietary oil source (O) (maize vs. palm oil) and Curcuma longa (C) supplementation (0 and 3 g/kg, respectively). Significant chemical differences emerged for palmitic, oleic and linoleic acids in the longissimus dorsi muscle due to the O factor and for linolenic acid due to the C factor. The NIRS spectra and chemical analyses were elaborated by the Partial Least Squares (PLS) method, and the rsquares in cross-validation (R2cv) were retained as measure of the unoriented differentiation between the levels of the planned factor for each landmark and fatty acid (FA) profile. Multivariate PLS analysis of the FA muscular fat showed that the O factor induced strong differentiation (R2cv: 0.96), while less influence (0.33) was observed for the C factor. The model based on the NIRS radiation of the landmarks clearly shows the O factor effects, not only in the perirenal (0.90) and scapular (0.85) fats, but also in the belly (0.76), liver (0.73) and hind legs (0.72). Whereas the C effects were only expressed in the live animals (ears: 0.66 and abdominal wall: 0.58) and in post-mortem (liver: 0.60). It was concluded that a preliminary NIRS scan of the carcass and of live rabbits can point out the presence of intrinsic experimental effects concerning the lipid metabolism of polyunsaturated FA of the n-6 series (O factor) and n-3 series (C factor). es_ES
dc.language Inglés es_ES
dc.publisher Editorial Universitat Politècnica de València
dc.relation.ispartof World Rabbit Science
dc.rights Reserva de todos los derechos es_ES
dc.subject NIRS es_ES
dc.subject Rabbits es_ES
dc.subject Tissues es_ES
dc.subject Dietary oil es_ES
dc.subject Curcuma longa es_ES
dc.title NIRS of body and tissues in growing rabbits fed diets with different fat sources and supplemented with Curcuma longa es_ES
dc.type Artículo es_ES
dc.date.updated 2013-07-11T07:21:10Z
dc.identifier.doi 10.4995/wrs.2013.1148
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Peiretti, PG.; Meineri, G.; Masoero, G. (2013). NIRS of body and tissues in growing rabbits fed diets with different fat sources and supplemented with Curcuma longa. World Rabbit Science. 21(2):85-90. doi:10.4995/wrs.2013.1148. es_ES
dc.relation.publisherversion https://doi.org/10.4995/wrs.2013.1148 es_ES
dc.description.upvformatpinicio 85 es_ES
dc.description.upvformatpfin 90 es_ES
dc.description.volume 21
dc.description.issue 2
dc.identifier.eissn 1989-8886


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