ISSN:
1745-4573
Quelle:
Blackwell Publishing Journal Backfiles 1879-2005
Thema:
Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
Notizen:
Intramuscular collagen and meat texture were measured in 23 female and 23 entire male pigs, subjected to one of three treatments: individual housing in pens of 2.5 m2 (confined; C), individual housing and regular treadmill training (trained; T) and group housing equal to 0.9 m2/animal (free; F).Treatment T tended (P = 0.13) to increase the activity of citrate synthase (CS) in M. biceps femoris (BF) from female pigs. Moreover, the heat stability of collagen and the mechanical resistance to 60 and 80% compression were increased (P〈0.03) in BF from female pigs in treatments T and F as compared to C. In BF from male pigs, treatment T decreased (P = 0.03) the heat stability of collagen when compared to C and F. Sensory tenderness was not affected (P〉0.05) by physical activity, however. In BF from female pigs, CS activity, collagen content and resistance to compression were lower (P〈0.01) than in male pigs. In M. longissimus thoracis et lumborum, there was no effect of either physical activity or sex. Depending on muscle type and sex, physical activity affects meat texture.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1111/j.1745-4573.1997.tb00377.x
