Abstract
The aim of this research was to compare fat quality of three categories of the Aosta cattle breeds by fatty acid composition. Samples of longissimus thoracis et lumborum from 12 calves, 11 young bulls and 11 cows of Aosta Red Pied and Black Pied were bought at retail. Fatty acids content showed in most cases, except for C18:1, significant differences between the three categories. Veal calves had the lowest proportion of SFA and highest of PUFA, therefore they had the best PUFA/SFA ratio but the worst n-6/n-3 ratio due to the highest proportion of C18:2n-6. Besides veal calves was healthier by having best atherogenicity and thrombogenicity indices. Black Pied young bulls, in comparison to Red Pied young bulls, showed a significant lower proportion of C10:0, C18:1, and a significant higher proportion of C18:2n-6, C18:3n-3 and C20:4n-6. Consequently they had a significant lower MUFA content but a higher PUFA content therefore a significant better PUFA/SFA ratio.
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