title: The effect of slaughter season on the Fatty Acid profile in four types of fat deposits in crossbred beef bulls.
abstract: The objective of this study was to determine the effect of slaughter season on the fatty acid profile in four types of fat deposits in crossbred (Polish Holstein Friesian Black-and-White×Limousine) beef bulls. The percentage share of fatty acids was determined by gas chromatography and were divided into the following categories of fatty acids: saturated (SFAs), unsaturated (UFAs), monounsaturated (MUFAs), polyunsaturated (PUFAs), desirable hypocholesterolemic (DFAs) and undesirable hypercholesterolemic (OFAs), n-3 and n-6. Perinephric fat was characterized by the highest SFA concentrations (59.89%), and subcutaneous fat had the highest MUFA content (50.63%). Intramuscular fat was marked by a high percentage share of PUFAs and the highest PUFA/SFA ratio. The slaughter season had a significant effect on the levels of C18:3, C20:4 (p≤0.01) and conjugated linoleic acid (p≤0.05). There was an interaction between the slaughter season and fat type for the content of C20:4 (p≤0.01) and C20:5 (p≤0.05). The results of this study show that beef from cattle slaughtered in the summer season has a higher nutritional value and more health-promoting properties.
authors: University of Warmia and Mazury, Faculty of Animal Bioengineering, Department of Cattle Breeding and Milk Quality Evaluation, ul. Oczapowskiego 5, 10 - 719 Olsztyn, Poland.
authors: Monika
authors: M
authors: Sobczuk-Szul
authors: University of Warmia and Mazury, Faculty of Animal Bioengineering, Department of Cattle Breeding and Milk Quality Evaluation, ul. Oczapowskiego 5, 10 - 719 Olsztyn, Poland.
authors: Marek
authors: M
authors: Wroński
authors: University of Warmia and Mazury, Faculty of Animal Bioengineering, Department of Cattle Breeding and Milk Quality Evaluation, ul. Oczapowskiego 5, 10 - 719 Olsztyn, Poland.
authors: Zofia
authors: Z
authors: Wielgosz-Groth
authors: University of Warmia and Mazury, Faculty of Animal Bioengineering, Department of Cattle Breeding and Milk Quality Evaluation, ul. Oczapowskiego 5, 10 - 719 Olsztyn, Poland.
authors: Magdalena
authors: M
authors: Mochol
authors: University of Warmia and Mazury, Faculty of Animal Bioengineering, Department of Cattle Breeding and Milk Quality Evaluation, ul. Oczapowskiego 5, 10 - 719 Olsztyn, Poland.
authors: Arkadiusz
authors: A
authors: Rzemieniewski
authors: University of Warmia and Mazury, Faculty of Animal Bioengineering, Department of Cattle Breeding and Milk Quality Evaluation, ul. Oczapowskiego 5, 10 - 719 Olsztyn, Poland.
authors: Zenon
authors: Z
authors: Nogalski
authors: University of Warmia and Mazury, Faculty of Animal Bioengineering, Department of Cattle Breeding and Milk Quality Evaluation, ul. Oczapowskiego 5, 10 - 719 Olsztyn, Poland.
authors: Paulina
authors: P
authors: Pogorzelska-Przybyłek
authors: University of Warmia and Mazury, Faculty of Animal Bioengineering, Department of Cattle Breeding and Milk Quality Evaluation, ul. Oczapowskiego 5, 10 - 719 Olsztyn, Poland.
authors: Cezary
authors: C
authors: Purwin
keywords: Beef; Fat Deposit; Fatty Acids; Gas Chromatography; Slaughter Season