Variance components estimation for body length and area traits derived from image analysis of live pigs

N R Sarker; B J Walmsley; Susanne Hermesch

doi:10.1016/j.anscip.2021.09.149

Abstract

Introduction: Body conformation of an animal has traditionally been used in the commercial industry as an indicator of carcase value. Pig body conformation can vary in different genotypes because of fat levels, muscularity and stage of maturity Doeschl et al. (2004). Attention to carcase conformation is becoming more widespread as its effects on total meat yield and the weight of individual retail cuts are being recognised. Linear body measurements on live animals offer advantages over ubjective methods of judging carcase conformation and as predictors of primal cut distribution. In order to implement linear or area measurements in genetic evaluations, genetic variation must exist in these traits. This study aimed to estimate variance components and to derive heritabilities for length and area measures of live pigs that were obtained from digital images.

Original language	English
Pages	266-266
DOIs	https://doi.org/10.1016/j.anscip.2021.09.149
Publication status	Published - Nov 2021
Event	APSA 2021: 18th Biennial Conference of the Australasian Pig Science Association - Hotel X, Brisbane, Australia Duration: 15 Nov 2021 → 18 Nov 2021

Conference

Conference	APSA 2021: 18th Biennial Conference of the Australasian Pig Science Association
City	Brisbane, Australia
Period	15/11/21 → 18/11/21

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10.1016/j.anscip.2021.09.149

https://hdl.handle.net/1959.11/53399

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Cite this

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title = "Variance components estimation for body length and area traits derived from image analysis of live pigs",

abstract = "Introduction: Body conformation of an animal has traditionally been used in the commercial industry as an indicator of carcase value. Pig body conformation can vary in different genotypes because of fat levels, muscularity and stage of maturity Doeschl et al. (2004). Attention to carcase conformation is becoming more widespread as its effects on total meat yield and the weight of individual retail cuts are being recognised. Linear body measurements on live animals offer advantages over ubjective methods of judging carcase conformation and as predictors of primal cut distribution. In order to implement linear or area measurements in genetic evaluations, genetic variation must exist in these traits. This study aimed to estimate variance components and to derive heritabilities for length and area measures of live pigs that were obtained from digital images.",

author = "Sarker, \{N R\} and Walmsley, \{B J\} and Susanne Hermesch",

note = "Paper presented by N R Sarker; APSA 2021: 18th Biennial Conference of the Australasian Pig Science Association ; Conference date: 15-11-2021 Through 18-11-2021",

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doi = "10.1016/j.anscip.2021.09.149",

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AU - Walmsley, B J

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N2 - Introduction: Body conformation of an animal has traditionally been used in the commercial industry as an indicator of carcase value. Pig body conformation can vary in different genotypes because of fat levels, muscularity and stage of maturity Doeschl et al. (2004). Attention to carcase conformation is becoming more widespread as its effects on total meat yield and the weight of individual retail cuts are being recognised. Linear body measurements on live animals offer advantages over ubjective methods of judging carcase conformation and as predictors of primal cut distribution. In order to implement linear or area measurements in genetic evaluations, genetic variation must exist in these traits. This study aimed to estimate variance components and to derive heritabilities for length and area measures of live pigs that were obtained from digital images.

AB - Introduction: Body conformation of an animal has traditionally been used in the commercial industry as an indicator of carcase value. Pig body conformation can vary in different genotypes because of fat levels, muscularity and stage of maturity Doeschl et al. (2004). Attention to carcase conformation is becoming more widespread as its effects on total meat yield and the weight of individual retail cuts are being recognised. Linear body measurements on live animals offer advantages over ubjective methods of judging carcase conformation and as predictors of primal cut distribution. In order to implement linear or area measurements in genetic evaluations, genetic variation must exist in these traits. This study aimed to estimate variance components and to derive heritabilities for length and area measures of live pigs that were obtained from digital images.

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