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Use of near infrared spectroscopy for intramuscular fat selection in rabbits

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Use of near infrared spectroscopy for intramuscular fat selection in rabbits

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dc.contributor.author ZOMEÑO, CRISTINA es_ES
dc.contributor.author HERNÁNDEZ, PILAR es_ES
dc.contributor.author BLASCO, AGUSTÍN es_ES
dc.date.accessioned 2012-01-11T11:48:17Z
dc.date.issued 2011
dc.identifier.issn 1257-5011
dc.identifier.uri http://hdl.handle.net/10251/14333
dc.description.abstract [EN] The potential use of near infrared spectroscopy (NIRS) for the determination of intramuscular fat (IMF) content in rabbit selection programmes was evaluated. One hundred and thirty seven rabbits from three different synthetic lines slaughtered between 5 and 61 weeks of age were used for NIR calibration. Longissimus muscles (LM) were homogenised, freeze-dried and scanned by NIRS reflectance and total lipid content was chemically analysed. Calibration equation parameters reported appropriate results for IMF (cross-validation standard error, SECV=0.07g/100g muscle; cross-validation coefficient of determination, R2=0.98 and residual predictive deviation of cross-validation, RPD=7.57). Another 88 rabbits were used to study the suitability of NIR spectroscopy in selection programmes. Intramuscular fat was measured in LM using chemical and NIRS analyses. Descriptive statistics showed that NIRS could be a proper technique to average comparison, but regression analyses (R2=0.92) and rank correlation measures, especially Kendall's tau-b correlation coefficient (0.83), indicated that NIRS may not be accurate enough to predict individual genetic values and produce ranking of animals. However, NIRS technique could be applied in truncated selection where the efficiency of the method is measured by the response to selection. Selection can be done on second parities using the IMF value of two full sibs of first parities. Ten females and 5 males can be selected as parents to establish a new population of 40 females and 5 males. The IMF values were similar between animals selected on the basis of chemically-determined IMF and NIRS-predicted IMF content. Results of the experiment confirmed the potential of NIRS for the determination of IMF content in rabbit selection programmes instead of using laborious chemical methods es_ES
dc.description.sponsorship This work was supported by projects AGL2008-05514-C02-01 from the Spanish National Research Plan and PROMETEO/2009/125 from the Generalitat Valenciana. C. Zomeno acknowledges a Formacion de Profesorado Universitario (FPU) grant from the Ministerio de Ciencia y Educacion (MEC), Spain. The authors thank Veronica Juste and Federico Pardo for their technical assistance. en_EN
dc.language Inglés es_ES
dc.publisher Editorial Universitat Politècnica de València es_ES
dc.relation MINECO/AGL2008-05514-C02-01
dc.relation GV/PROMETEO/2009/125
dc.relation.ispartof World Rabbit Science
dc.rights Reserva de todos los derechos es_ES
dc.subject Intramuscular fat es_ES
dc.subject Nir spectroscopy es_ES
dc.subject Selection es_ES
dc.subject Rabbit es_ES
dc.title Use of near infrared spectroscopy for intramuscular fat selection in rabbits es_ES
dc.type Artículo es_ES
dc.date.updated 2012-01-09T13:58:50Z
dc.identifier.doi 10.4995/wrs.2011.939
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Zomeño, C.; Hernández, P.; Blasco, A. (2011). Use of near infrared spectroscopy for intramuscular fat selection in rabbits. World Rabbit Science. 19(4). doi:10.4995/wrs.2011.939 es_ES
dc.relation.publisherversion http://doi.org/10.4995/wrs.2011.939
dc.description.volume 19
dc.description.issue 4
dc.identifier.eissn 1989-8886
dc.contributor.funder Ministerio de Economía y Competitividad (MINECO)
dc.contributor.funder Generalitat Valenciana (GV)


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