Recent genetic advances on boar taint reduction as an alternative to castration: a review.
Androstenone
Castration alternatives
Genetic selection
Pigs
Skatole
Journal
Journal of applied genetics
ISSN: 2190-3883
Titre abrégé: J Appl Genet
Pays: England
ID NLM: 9514582
Informations de publication
Date de publication:
Feb 2021
Feb 2021
Historique:
received:
01
06
2020
accepted:
23
11
2020
revised:
17
11
2020
pubmed:
7
1
2021
medline:
19
8
2021
entrez:
6
1
2021
Statut:
ppublish
Résumé
Boar taint is an unpleasant odor in male pig meat, mainly caused by androstenone, skatole, and indole, which are deposited in the fat tissue. Piglet castration is the most common practice to prevent boar taint. However, castration is likely to be banished in a few years due to animal welfare concerns. Alternatives to castration, such as genetic selection, have been assessed. Androstenone and skatole have moderate to high heritability, which makes it feasible to select against these compounds. This review presents the latest results obtained on genetic selection against boar taint, on correlation with other traits, on differences in breeds, and on candidate genes related to boar taint. QTLs for androstenone and skatole have been reported mainly on chromosomes 6, 7, and 14. These chromosomes were reported to contain genes responsible for synthesis and degradation of androstenone and skatole. A myriad of work has been done to find markers or genes that can be used to select animals with lower boar taint. The selection against boar taint could decrease performance of some reproduction traits. However, a favorable response on production traits has been observed by selecting against boar taint. Selection results have shown that it is possible to reduce boar taint in few generations. In addition, modifications in diet and environment conditions could be associated with genetic selection to reduce boar taint. Nevertheless, costs to measure and select against boar taint should be rewarded with incentives from the market; otherwise, it would be difficult to implement genetic selection.
Identifiants
pubmed: 33405214
doi: 10.1007/s13353-020-00598-w
pii: 10.1007/s13353-020-00598-w
pmc: PMC7822767
doi:
Substances chimiques
Indoles
0
indole
8724FJW4M5
Skatole
9W945B5H7R
Androsterone
C24W7J5D5R
Types de publication
Journal Article
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
137-150Subventions
Organisme : Service Publique de Wallonie
ID : D31-1396
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