Genetic approaches for rearing entire males
| Autor: | Larzul, Catherine, Fontanasi, L., Tholen, E., van Son, M. |
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| Přispěvatelé: | ProdInra, Migration, Génétique Physiologie et Systèmes d'Elevage (GenPhySE ), École nationale supérieure agronomique de Toulouse [ENSAT]-Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Vétérinaire de Toulouse (ENVT), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Department of Agricultural and Food Sciences, University of Bologna, Animal Genetics, Teagasc - The Agriculture and Food Development Authority (Teagasc), Topigs Norsvin Research Center B.V., Schoenaker, Partenaires INRAE, Institute of Animal Sciences, Norsvin |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Proceedings of meetings held by the Cost action CA15215 IPEMA Innovative Approaches for Pork Production with Entire Males and Immunocastrates . (9 (S1))2018; IPEMA Innovative Approaches for Pork Production with Entire Males and Immunocastrates,,, 2018-07-06-2018-07-06, Non paginé Annual Meeting of the European Association for Animal Production 69. Annual Meeting of the European Federation of Animal Science (EAAP) 69. Annual Meeting of the European Federation of Animal Science (EAAP), Aug 2018, Dubrovnik, Croatia. 705 p www.eaap2018.org Advances in Animal Biosciences IPEMA Innovative Approaches for Pork Production with Entire Males and Immunocastrates IPEMA Innovative Approaches for Pork Production with Entire Males and Immunocastrates, Jul 2018, Cambridge |
| DOI: | 10.1017/S2040470018000183 |
| Popis: | International audience; Boar taint in the pork meat from entire male pigs results from the presence of two molecules: androstenone and skatole. The genetic determinism of androstenone and skatole has been studied for a few decades. It is well known that the heritability values are moderate to high and the genetic correlation between both levels is moderately positive. Nevertheless, application of selecting against boar taint has been limited in breeding schemes to obtain low boar taint lines. An important topic is the relationships between boar taint risk and other trait of economic interest. The genetic correlations with production traits such as growth rate, feed efficiency or carcass quality are mostly favourable, and selection applied in sire lines should tend to decrease boar taint. In dam lines, the genetic relationships with reproductive traits still need to be further explored. Some studies showed low correlations between boar taint risk and litter traits or fertility, but other evidences led to the conclusion that selection against boar taint would unfavourably impact female reproductive traits. Several issues have been addressed regarding potential criteria to predict boar taint at slaughter. One of the most promising has been human nose scoring at slaughter house, but relevant predictors are still needed that can directly be measured on live animals. New instrumental methods have to be developed for breeding purposes. In that respect, genomic information and a better understanding of genes involved in boar taint metabolism will provide useful tools for breeding entire males. |
| Databáze: | OpenAIRE |
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