Strategies to Meet Nutritional Requirements and Reduce Boar Taint in Meat from Entire Male Pigs and Immunocastrates.
energy
management
nutrition
pork quality
protein
Journal
Animals : an open access journal from MDPI
ISSN: 2076-2615
Titre abrégé: Animals (Basel)
Pays: Switzerland
ID NLM: 101635614
Informations de publication
Date de publication:
23 Oct 2020
23 Oct 2020
Historique:
received:
24
09
2020
revised:
14
10
2020
accepted:
17
10
2020
entrez:
29
10
2020
pubmed:
30
10
2020
medline:
30
10
2020
Statut:
epublish
Résumé
This paper reviews the current knowledge on the nutritional requirements of entire male and immunocastrated pigs to obtain an efficient growth, low boar taint level, and good carcass and meat quality. We present the reasons for offering entire males ad libitum access to the diets in order to optimize their protein deposition potential. Boar taint is one of the major issues in the production of entire males; therefore, the impact of various skatole- and indole-reducing feed ingredients is discussed regarding their efficiency and the possible mechanism affecting skatole and indole production in the hindgut. Entire males have lean carcasses, so their intramuscular fat content can be lower than that of surgical castrates or females and the adipose tissue can be highly unsaturated. The possible nutritional strategies to counteract these effects are summarized. We conclude that immunocastrates can be fed similarly to entire males until the second vaccination. However, due to the metabolic changes occurring shortly after the second vaccination, the requirements for essential amino acids are markedly lower in immunocastrates than in entire males.
Identifiants
pubmed: 33114075
pii: ani10111950
doi: 10.3390/ani10111950
pmc: PMC7690666
pii:
doi:
Types de publication
Journal Article
Review
Langues
eng
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