Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Effect of exercise on skeletal muscle proteolytic enzyme activity and meat quality characteristics in Iberian pigs.
Year:2008
Research Areas
  • Animal production
Information
Abstract
The effects of physical activity on performance, carcass traits, Psoas major lysosomal and exoprotease acitivies and meat quality were studied in 24 castrated male Iberian pigs during the last fattening period (from 111.1 ± SD: 5.2 kg). Pigs were randomly distributed in three groups. Two groups receiving the same diet were reared in confinement, one housed in individual pens of 8 m2 (sedentary group) and the other was housed outdoor with daily (up to 2 km) forced walking (exercise group). And one group was reared under the traditional production system walking daily several km and fed mostly with acorn from Quercus ilex and Quercus rotundifolia and grass (freerange group). No differences were found in performance and carcass traits. In exercised pigs a lower activity of cathepsin B + L and total cathepsins (P < 0.05) was observed. Exercise induced the inhibition of dipeptidyl peptidases II and III and arginyl aminopeptidase and the activation of dipeptidyl peptidases IV and leucyl aminopeptidase (P < 0.05). Although no effects on total free amino acids in Psoas major muscle were observed the concentration of branched chain amino acids decreased in the free-range pig group probably related to an increase in physical activity. Exercise had no effects in Psoas major postmortem tenderness and water holding capacity.
International
Si
JCR
No
Title
Meat science
ISBN
0309-1740
Impact factor JCR
0
Impact info
Volume
79
Journal number
1
From page
71
To page
76
Month
ENERO
Ranking
Participants
  • Autor: David Menoyo Luque (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Producción Animal
  • Departamento: Producción Animal
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