Estimation of breeding value in pigs. Report of a working group of the commission on animal genetics

Lindhé, B.; Averdunk, G.; Brascamp, E.W.; Duniec, H.; Gajić, Igor; Legault, Christian; Steane, D. E.

doi:10.1016/0301-6226(80)90114-1

Cited by 6 publications

(2 citation statements)

References 2 publications

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“…this study indicate that there is sufficient genetic variation to allow improvement in meat quality by selection. Although eating quality characteristics could not, practically, be measured as part of swine improvement (testing and selection) programs, muscle color, and(or1 other technological traitk) could be measured on carcasses of relatives and included in selection indices designed to hold constant or to improve eating quality at the same time as genetically improving lean tissue growth rate and feed conversion efficiency, as has been practiced for some time in Europe (Lindhe et al, 1980). Meat color, for example, is included in the aggregate genotype in several European countries (Austria, Finland, France, Germany, the Netherlands, Norway, Sweden, and Switzerland; Lundstrom, 1990).…”

Section: Conclusion Heritability Estimates Obtained Inmentioning

confidence: 99%

Genetic analyses of growth, real-time ultrasound, carcass, and pork quality traits in Duroc and Landrace pigs: II. Heritabilities and correlations

McLaren

McKeith

et al. 1992

Journal of Animal Science

121

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Knowledge of the genetic control of pork quality traits and relationships among pork quality, growth, and carcass characteristics is required for American swine populations. Data from a 2 x 2 diallel mating system involving Landrace and Duroc pigs were used to estimate heritabilities and genetic correlations among growth (ADG), real-time ultrasonic (US) measures of backfat thickness (BF) and longissimus muscle area (LMA), carcass characteristics, and various pork quality traits. Data were collected from 5,649 pigs, 960 carcasses, and 792 loin chops representing 65, 49, and 49 sires, respectively. Genetic parameters were estimated by REML assuming animal models. Heritability estimates were moderate to high for ADG, USBF, USLMA, carcass BF, and LMA, percentage of LM lipid (IMF), pork tenderness, and overall acceptability. Estimates were low to moderate for percentage of cooking loss, pH, shear force, percentage of LM water, water-holding capacity (WHC), pork flavor, and juiciness. Genetic correlations between US and carcass measures of BF and LMA indicate that selection based on US data will result in effective improvement in carcass characteristics. Selection for increased LMA and(or) decreased BF using US is, however, expected to result in decreased IMF and WHC, increased percentage of LM water and shear value, and in decreased juiciness, tenderness, and pork flavor. Average daily gain was favorably correlated with IMF and unfavorably correlated with shear force. Selection for increased ADG is expected to improve WHC but to decrease the percentage of LM water, with an associated decrease in juiciness. The results of this study suggest the feasibility of including meat quality in selection objectives to improve product quality. Favorable genetic correlations between IMF and eating quality traits suggest the possible merit of including IMF in the selection objective to improve, or restrict change in, pork eating quality.

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Section: Conclusion Heritability Estimates Obtained Inmentioning

confidence: 99%

Genetic analyses of growth, real-time ultrasound, carcass, and pork quality traits in Duroc and Landrace pigs: II. Heritabilities and correlations

McLaren

McKeith

et al. 1992

Journal of Animal Science

121

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show abstract

“…While these ultrasonic devices can be used to assess the depths of backfat on finished pigs, they are mainly used in the selection of breeding stock, both boars and gilts (Lindhé et al, 1980) since the heritability of backfat thickness is high (between 0.4 and 0.6) (Whittemore, 1993). Within a breeding program it is important that these ultrasonic instruments also consistently and accurately measure backfat depth in order to maximise the economic productivity of the progeny.…”

Section: Introductionmentioning

confidence: 99%

A comparison of pig backfat measurements using ultrasonic and optical instruments

Magowan¹,

McCann²

2006

Livestock Science

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Genotype × Environment interactions in pig breeding programmes. II. Environmental effects and genetic parameters in central test

Merks¹

1987

Livestock Production Science

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Estimation of breeding value in pigs. Report of a working group of the commission on animal genetics

Cited by 6 publications

References 2 publications

Genetic analyses of growth, real-time ultrasound, carcass, and pork quality traits in Duroc and Landrace pigs: II. Heritabilities and correlations

Genetic analyses of growth, real-time ultrasound, carcass, and pork quality traits in Duroc and Landrace pigs: II. Heritabilities and correlations

A comparison of pig backfat measurements using ultrasonic and optical instruments

Genotype × Environment interactions in pig breeding programmes. II. Environmental effects and genetic parameters in central test

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