Date of Graduation
Davis College of Agriculture, Natural Resources and Design
Animal and Nutritional Sciences
The objectives of this study were to determine the effect of the crosslink breaker ALT-711 on the concentration of soluble collagen, as well as its effectiveness on meat tenderness.;Final body weights were not affected by treatments. Muscle tenderness was higher (p < 0.05) for TB, SS, BF, ST, and LT (p < 0.10) for A-maturity animals compared to control and ALT-711 treated animals. No consistent ALT-711 effect on shear force measurements was found. Shear force increased linearly with age BF, R2 = 0.94; SM, R2 = 0.81; LL, R 2 = 0.77; SS, R2 = 0.63; LT, R2 = 0.32; TB, R2 = 0.37; ST, R2 = 0.40. Total collagen content was not different (p > 0.10) between A-maturity, control and ALT-711 treated animals. However, the concentration of soluble collagen was higher (P < 0.05) for A-maturity group. Insoluble collagen content was higher (p < 0.05) for longissimus thoracis, biceps femoris, and (p < 0.10) for supraspinatus of control animals. Muscle soluble collagen content decreased linearly as chronological age increased LT R2 = 0.98; LL R 2 = 0.92; TB R2 = 0.99; BF R2 = 0.99; ST R2 = 0.95; SM R2 = 0.99; SS R2 = 0.36. The soluble collagen percentage was higher for ALT-711 treated animals compared to control animals.;ALT-711 tended to increase muscle soluble collagen content of aged cattle. ALT-711 may be an effective age-related collagen crosslink breaker. However, ALT-711 may not be used to improve meat quality of aged cattle.
Pacurari, Maricica, "Factors influencing crosslink formation in muscle tissue" (2001). Graduate Theses, Dissertations, and Problem Reports. 1336.