Genetic parameters between slaughter pig efficiency and growth rate of different body tissues estimated by computed tomography in live boars of Landrace and Duroc

Animal : an International Journal of Animal Bioscience
E Gjerlaug-EngerO Vangen


In this study, computed tomography (CT) technology was used to measure body composition on live pigs for breeding purposes. Norwegian Landrace (L; n = 3835) and Duroc (D; n = 3139) boars, selection candidates to be elite boars in a breeding programme, were CT-scanned between August 2008 and August 2010 as part of an ongoing testing programme at Norsvin's boar test station. Genetic parameters in the growth rate of muscle (MG), carcass fat (FG), bone (BG) and non-carcass tissue (NCG), from birth to ∼100 kg live weight, were calculated from CT data. Genetic correlations between growth of different body tissues scanned using CT, lean meat percentage (LMP) calculated from CT and more traditional production traits such as the average daily gain (ADG) from birth to 25 kg (ADG1), the ADG from 25 kg to 100 kg (ADG2) and the feed conversion ratio (FCR) from 25 kg to 100 kg were also estimated from data on the same boars. Genetic parameters were estimated based on multi-trait animal models using the average information-restricted maximum likelihood (AI-REML) methodology. The heritability estimates (s.e. = 0.04 to 0.05) for the various traits for Landrace and Duroc were as follows: MG (0.19 and 0.43), FG (0.53 and 0.59), BG (0.37 and 0.58)...Continue Reading


May 1, 1977·The Proceedings of the Nutrition Society·A J Webster
Jan 1, 1992·Journal of Animal Science·G L Bennett
Jan 1, 1981·The Proceedings of the Nutrition Society·A J Webster
Nov 1, 1950·Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character·J HAMMOND
Dec 21, 2006·Journal of Animal Science·F KöhnH Simianer
Jun 7, 2007·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·M A HoqueT Oikawa
Mar 24, 2012·Animal : an International Journal of Animal Bioscience·E Gjerlaug-EngerO Vangen
Mar 1, 2007·Animal : an International Journal of Animal Bioscience·M Chimonyo, K Dzama
Nov 1, 2010·Animal : an International Journal of Animal Bioscience·E Gjerlaug-EngerO Vangen

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