Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Influence of gender and castration on growth performance and carcass and meat quality of heavy pigs destined to the dry-cured industry
Year:2008
Research Areas
  • Animal production
Information
Abstract
Crossbred pigs (n = 240) from Pietrain × Large White sires mated to Landrace × Large White dams, with an average age of 100 d (60.5 ± 2.3 kg of BW), were used to investigate the effects of sex and slaughter weight (SW) on growth performance and on carcass and meat quality characteristics. There were 6 treatments arranged factorially, with 3 classes (intact females, IF; castrated females, CF; and castrated males, CM) and 2 slaughter weights (114 and 122 kg of BW). Each of the 6 combinations of treatments was replicated 4 times, and the experimental unit was a pen with 10 pigs. Castrated males and CF ate more feed, grew faster, and had more carcass backfat depth and fat thickness at the gluteus medius muscle but lower loin yield than IF (P < 0.05). In addition, CF and CM had more intramuscular fat (P < 0.05) and less linoleic acid content in the subcutaneous fat (P < 0.01) than IF. Pigs slaughtered at 122 kg of BW had lower ADG (P < 0.05), decreased G:F (P < 0.05), and more gluteus medius fat than pigs slaughtered at 114 kg of BW (P < 0.05). It was concluded that CF and CM had similar productive performance and meat quality characteristics when slaughtered at the same age, and that castration of females improved ADG and increased weight and fat content of primal cuts with respect to IF. Therefore, castration of females is recommended in pigs destined for the dry-cured industry because of the beneficial effects on quality of the primal cuts.
International
Si
JCR
Si
Title
JOURNAL OF ANIMAL SCIENCE
ISBN
0021-8812
Impact factor JCR
2,102
Impact info
Volume
86
Journal number
0
From page
1410
To page
1417
Month
ENERO
Ranking
Participants
  • Autor: Gonzalo Gonzalez Mateos (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Producción Animal
  • Departamento: Producción Animal
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