Item


A compositional genetic analysis of oleic acid content in pig meat

Intramuscular fat (IMF) content and composition, particularly the oleic fatty acid content (OL),are major quality characteristics of pork fresh and dry-cured products. They are known to be relatedto nutritional, manufacturing and organoleptic properties, as well as to human health. It is knownthat IMF content is under genetic control but little evidence is available for IMF composition,namely OL. There are very few estimates in the literature regarding genetic parameters for OL(Suzuki et al., 2006) and, besides, most of them are based on small data sets from experimentsdesigned for other purposes (Ntawubizi et al., 2010; Sellier et al., 2010). However, geneticparameters associated to IMF and OL (i.e. heritability and genetic correlations with other relevanttraits) are needed for developing selection criteria and optimum breeding strategies andprogrammes.IMF content is usually expressed in percent of dry or wet matter and OL in percent of total fattyacids in IMF. However, all research done in this field was not aware of the compositional nature ofthese data (Aitchison, 1986). The purpose of the present contribution is to compare results fromstandard linear with compositional data analyses for IMF and OL. Analyses were compared interms of genetic parameter estimates, selection efficiency, and predictive capacity.

Universitat de Girona. Departament d’Informàtica i Matemàtica Aplicada

Other contributions: Universitat de Girona. Departament d’Informàtica i Matemàtica Aplicada
Author: Estany, J.
Ros, R.
Tor, M.
Reixach, J.
Abstract: Intramuscular fat (IMF) content and composition, particularly the oleic fatty acid content (OL),are major quality characteristics of pork fresh and dry-cured products. They are known to be relatedto nutritional, manufacturing and organoleptic properties, as well as to human health. It is knownthat IMF content is under genetic control but little evidence is available for IMF composition,namely OL. There are very few estimates in the literature regarding genetic parameters for OL(Suzuki et al., 2006) and, besides, most of them are based on small data sets from experimentsdesigned for other purposes (Ntawubizi et al., 2010; Sellier et al., 2010). However, geneticparameters associated to IMF and OL (i.e. heritability and genetic correlations with other relevanttraits) are needed for developing selection criteria and optimum breeding strategies andprogrammes.IMF content is usually expressed in percent of dry or wet matter and OL in percent of total fattyacids in IMF. However, all research done in this field was not aware of the compositional nature ofthese data (Aitchison, 1986). The purpose of the present contribution is to compare results fromstandard linear with compositional data analyses for IMF and OL. Analyses were compared interms of genetic parameter estimates, selection efficiency, and predictive capacity.
Document access: http://hdl.handle.net/2072/273648
Language: eng
Publisher: Universitat de Girona. Departament d’Informàtica i Matemàtica Aplicada
Rights: Tots els drets reservats
Subject: Estadística matemàtica -- Congressos
Mathematical statistics -- Congresses
Anàlisi multivariable -- Congressos
Mathematical statistics -- Congresses
Carn de porc -- Qualitat -- Mètodes estadístics -- Congressos
Pork -- Quality -- Statistical methods -- Congresses
Àcids grassos -- Mètodes estadístics -- Congressos
Fatty acids -- Statistical methods -- Congresses
Title: A compositional genetic analysis of oleic acid content in pig meat
Type: info:eu-repo/semantics/conferenceObject
Repository: Recercat

Subjects

Authors


Warning: Unknown: write failed: No space left on device (28) in Unknown on line 0

Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/lib/php5) in Unknown on line 0