QUALITY INDICATORS OF BEEF FROM YOUNG BULLS OF VARIOUS DAIRY AND BEEF BREEDS
In terms of safety, it corresponds to all parameters standardized in SanPiN 188.8.131.528-01.
The biological value of meat from beef bulls is higher compared to dairy bulls by 3.7% and 0.9%. In all groups, the essential amino acid content in meat proteins exceeds the values recommended by FAO/WHO for humans.
Oleic acid had the highest concentration in the intramuscular fat (38.71, 39.02, 40.16% in Groups I, II and III, respectively). Palmitic acid content in the sample of intramuscular fat from red steppe bulls was 26.40%, in black-and-white bulls — 25.86%, and in Kalmyk bulls — 25.07%. Stearic acid concentration was 21.09%, 21.95% and 20.41% in Groups I, II and III, respectively. Thus, the intramuscular fat of Kalmyk bulls is characterized by a lower content of saturated fatty acids compared to herdmates from Groups I and II: palmitic acid by 1.33% and 0.79%, stearic acid by 0.68% and 1, 54% and myristic acid by 0.37% and 0.15%, respectively. The content of saturated fatty acids (palmitic and myristic) in intramuscular fat samples from Group I was higher than in Groups II and III, and the content of stearic acid was the lowest. Polyunsaturated
fatty acid (PUFA) concentration in the intramuscular fat of all breeds is sufficiently high. Thus, total PUFA content in Group I was 5.64%, in Group II — 6.42% and in Group III — 7.18%. While differences in PUFA content were insignificant, animals in Group III had a higher PUFA level compared to Groups I and II by 1.54 and 0.76%, respectively.
Ecologically pure food product has been obtained in the Southern
Urals with its increased anthropogenic burden on natural and agricultural ecosystems. In Group III, lead content is lower than in Groups I and II by 15.8 and 30.4%, copper content is lower by 54.5 and 60.0% and cadmium content is lower by 50.0%. The content of cesium, as a radionuclide, does not exceed the specifications and is equal to 3.0 Bq/kg.
About the AuthorsS. A. Miroshhikov
doctor of biological sciences, professor, corresponding member to the Russian Academy of Sciences, Director
A. V. Kharlamov
doctor of agricultural sciences, professor, head of the Department of beef cattle technology and beef production
I. V. Markova
candidate of biological sciences, research scientist of the Department of beef cattle technology and beef production
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For citation: Miroshhikov S.A., Kharlamov A.V., Markova I.V. QUALITY INDICATORS OF BEEF FROM YOUNG BULLS OF VARIOUS DAIRY AND BEEF BREEDS. Theory and practice of meat processing. 2017;2(2):14-22. https://doi.org/10.21323/2414-438X-2017-2-2-14-22
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