CHANGES IN COLOUR AND LIPID OXIDATION IN M. LONGISSIMUS DORSI DURING REFRIGERATED STORAGE IN CALVES OF LIMOUSIN CROSSBREEDS
T. Popova, V. Vasileva, K. Lidji, P. Marinova, Y. Gorinov
Abstract: The changes in colour and lipid oxidation in m. Longissimus dorsi during refrigerated storage (+4°C) are studied in crossbred Brown х Limousin and Black and White х Limousin calves. The changes in colour are determined by reflectance measurements (525 nm), and the lipid oxidation - by the mounts of the malondialdehyde at the 1-st, 2-nd, 4th and 6th days of storage.
The duration of the refrigerated storage has significant influence (Р<0.001) on the changes in colour and lipid oxidation in m. LD in the animals of both groups. The reflectance values decrease till the end of the storage period as the differences between the intervals are significant unless between 2-nd and 4-th day in Brown x Limousin and the 4-th and 6-th day in both groups. Maximal values of MDA amounts are measured on the 6-th day of the storage, as the differences with the rest of the intervals are significant (P<0.001) for both groups. No significant difference in the studied parameters is found when comparing the two crossbreeds.
The duration of the refrigerated storage has significant influence (Р<0.001) on the changes in colour and lipid oxidation in m. LD in the animals of both groups. The reflectance values decrease till the end of the storage period as the differences between the intervals are significant unless between 2-nd and 4-th day in Brown x Limousin and the 4-th and 6-th day in both groups. Maximal values of MDA amounts are measured on the 6-th day of the storage, as the differences with the rest of the intervals are significant (P<0.001) for both groups. No significant difference in the studied parameters is found when comparing the two crossbreeds.
Keywords: calves; colour; lipid oxidation
Date published: 2018-03-09
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