SHORT COMMUNICATION
The fatty acid profle of M. thoracis
and M. semitendinosus intramuscular fat
1
Warsaw Agricultural University, Department of Animal Nutrition and Feed Management,
Ciszewskiego 8, 02-786 Warszawa, Poland
2
National Research Institute of Animal Production,
Department of Animal Nutrition and Feed Management,
32-083 Balice, Poland
3
Warmia and Mazury University in Olsztyn, Department of Cattle Breeding,
Oczapowskiego 5, 10-718 Olsztyn, Poland
Publication date: 2005-06-21
Corresponding author
M. Dymnicka
Warsaw Agricultural University, Department of Animal Nutrition and Feed Management, Ciszewskiego 8, 02-786 Warszawa, Poland
Warsaw Agricultural University, Department of Animal Nutrition and Feed Management, Ciszewskiego 8, 02-786 Warszawa, Poland
J. Anim. Feed Sci. 2005;14(Suppl. 1):247-250
KEYWORDS
ABSTRACT
The experiment was performed on 33 young beef bulls of the following breeds: 16, Limousine
(L), 9, Hereford (H), and 8, Charolaise, aged 7 to 14 months. The bulls were fed grass silage, maize
silage and a concentrate, according to IZ-INRA standards (2001), assuming body weight gains of
1100-1200 g/d. At the end of the fattening period the bulls were slaughtered and samples of M.
thoracis (MT) and M. semitendinosus (MS) were taken for fatty acid analysis. The intramuscular fat
of MS, compared with MT, contained a significantly higher percentage of UFA, especially PUFA
with 20 or 22 carbon atoms, and a lower concentration of SFA (P≤0.01). MS contained more n-6 and
n-3 PUFA (P≤0.03), and was characterized by a slightly lower n-6/n-3 ratio (P= 0.07).
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| ISSN: | 1230-1388 |
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