Effect of ante-mortem stress on post-mortem changes of titin I (α-connection) into titin II (β-connection) and nebulin in the light and dark muscle of Taiwan country chicken

Lin, L. C.

doi:1994.7.3.405

Article

Animal Reproduction and Physiology

Asian-Australasian Journal of Animal Sciences 1994;7(3): 405-411.
https://doi.org/10.5713/ajas.1994.405 Published online September 1, 1994.

Effect of ante-mortem stress on post-mortem changes of titin I (α-connection) into titin II (β-connection) and nebulin in the light and dark muscle of Taiwan country chicken

L. C. Lin

Abstract

Purified myofibrils were prepared from ante-mortem stress and control lots of Taiwan country chicken breast and thigh muscles at death and after storage at 4째C for 0, 1, 2, 3, and 7 days post-mortem. Sodium dodecyl sulfate polycrylamide gel electrophoresis (3.2%) and densitometer were used to examine the effect of ante-mortem stress and control storage of muscle on titin and nebulin. Results indicated that titin and nebulin were more rapidly degraded in the control and the ante-mortem stress light muscles than in the control and ante-mortem dark muscles of Taiwan country chicken. In contrast, nebulin was shown to be more resistance to degradation in the ante-mortem stress dark muscle than in the control light muscle.

Keywords: Ante-Mortem Stress; Titin; Nebulin; Taiwan Country Chicken