Genetic determinism of sexual development and boar taint in Pietrain and Pietrain × Large White pigs
| Autor: | Larzul, Catherine, Prunier, Armelle, Muller, Nelly, Jaguelin, Sandrine, Comte, Raphaël, Hassenfratz, Claire, Mercat, Marie-José |
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| Přispěvatelé: | Génétique Animale et Biologie Intégrative (GABI), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Physiologie, Environnement et Génétique pour l'Animal et les Systèmes d'Elevage [Rennes] (PEGASE), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Unité expérimentale de testage de porcs, Institut National de la Recherche Agronomique (INRA), Institut du Porc (IFIP), ANR, AgroParisTech-Institut National de la Recherche Agronomique (INRA), AGROCAMPUS OUEST-Institut National de la Recherche Agronomique (INRA), UE 0450 Unité Expérimentale de Testage de Porcs, Institut National de la Recherche Agronomique (INRA)-Génétique animale (G.A.)-Unité Expérimentale de Testage de Porcs (UETP), Institut du Porc |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Annual Meeting of the European Association for Animal Production 64th Annual Meeting European Association for Animal Production (EAAP) 64th Annual Meeting European Association for Animal Production (EAAP), Aug 2013, Nantes, France Book of Abstracts of the 64th Annual Meeting of the European Federation of Animal Science. 2013; 64. Annual Meeting of the European Association for Animal Production (EAAP), Nantes, FRA, 2013-08-26-2013-08-30, 313 |
| Popis: | The European pig industry is engaged in a voluntary abandonment of surgical castration ofmale piglets by 2018. A condition of this abandonment is to solve different problems relatedto breeding boars, especially meat quality. One of the best ways is that of genetics, includinggenomic selection. A resource population has been implemented using French Pietrain pigsraised in a control animal testing station. About 1500 Pietrain type or cross-type Pietrain ×Large White boars were raised and slaughtered to determine the characteristics of sexualdevelopment, body composition and above all meat quality traits. Plasma testosteroneconcentration differed from one genetic type to another, but the differences were generallysmall. This concentration was not affected by the batch or by the weight of the animals or bytheir age at measurement. Androstenone content in backfat was not affected by the batch butthe average almost doubled from one genetic type to another, the highest levels beingobserved both in one Pietrain type and in one crossbred type. Androstenone content increasedwith slaughter weight and plasma testosterone concentration. The effect of slaughter agedepended on the genetic type. Skatole content in backfat was little affected by theconcentration of testosterone, but varied from one batch to another, from one genetic type toanother and decreased with age at slaughter. Genetic parameters were estimated in thedifferent populations. They were estimated within the range of values usually observed forthese traits. |
| Databáze: | OpenAIRE |
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