Production of beef meat with functional food properties
2011
Sretenović, Lj., Institute for Animal Husbandry, Belgrade-Zemun (Serbia) | Pantelić, V., Institute for Animal Husbandry, Belgrade-Zemun (Serbia) | Novaković, M., Institute for Animal Husbandry, Belgrade-Zemun (Serbia) | Novaković, Ž., Institute for Animal Husbandry, Belgrade-Zemun (Serbia) | Ostojić-Andrić, D., Institute for Animal Husbandry, Belgrade-Zemun (Serbia)
In this study the effects of Tradi-Lin as a source of omega-3 fatty acids (FA) in diets for fattening cattle were presented. Tradi-Lin produced from flax seed had 58% omega-3 and 15% omega-6 fatty acids of total polyunsaturated fatty acids (PUFA). Trial was carried out on three groups of finishing beef cattle (C, T1 and T2) with 15 heads in each and was lasted 60 days. The diets used based on maize silage and concentrate mixture. Cattle received 0, 300 and 700 g of Tradi-Lin per day, respectively. At the end of trial heads were slaughtered and major parameters of the chemical composition and meat quality were determined. The results indicated that were no differences in saturated (50.85; 50.21; 50.34%) and unsaturated (49.15; 49.79; 49.66%) FA between treatments in intramuscular fat of the m. longissimus dorsi but Tradi-Lin influenced the changes in structure of intramuscular fat and increased PUFA from 4.91 (C) to 5.54 (T1) and 7.31% (T2) ( P is less than 0.05). The increase of omega-3 FA from 0.36 (C) to 0.60 (T1) and 0.76% (T2) must be pointed out, ( P is less than 0.05). The omega-6 FA were also increased from 4.51 (C) to 4.94 (T1) and 6.22% (T2) (Pis greater than 0.05) but omega-6: omega- 3 ratio was reduced from 12.25 (C) to 8.22 (T1) (P is less than 0.05) and 8.62(T2), (P is less than 0.01). Trans unsaturated FA which are undesirable were decreased from 3.37% (C) to 2.43% (T1) and 2.36% (T2)(P is less than 0.05). From nutritional aspect those results have a great importance, having in mind that omega-3 FA have a vital role in human health.
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