Pregled bibliografske jedinice broj: 306174
Blood lipids and proportion of fatty acids, especially CLA in milk of Simmental cows fed with unprotected sunflower oil
Blood lipids and proportion of fatty acids, especially CLA in milk of Simmental cows fed with unprotected sunflower oil // Oils, Fats and Lipids: from Science to Applications / Amoneit, Frank (ur.).
Frankfurt: Euro Fed Lipid, 2007. (poster, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 306174 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Blood lipids and proportion of fatty acids, especially CLA in milk of Simmental cows fed with unprotected sunflower oil
Autori
Marenjak, Terezija Silvija ; Poljičak-Milas, Nina ; Delaš, Ivančica
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Oils, Fats and Lipids: from Science to Applications
/ Amoneit, Frank - Frankfurt : Euro Fed Lipid, 2007
Skup
5th Euro Fed Lipid Congress
Mjesto i datum
Göteborg, Švedska, 16.09.2007. - 19.09.2007
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
fatty acids; lipid profile; milk; cows; vegetable oil
Sažetak
The main objective of our research was to determine an effect of unrifined and unprotected sunflower oil on the fatty acid composition and blood lipid profile in Simmental cows. Ten Simmental cows in mid-lactation were appointed for changeover feeding trial over the 35-d period. Cows were allocated to basal diet (BD) ; 41% concentrate, 33% perennial ryegrass haylage, 26% corn silage in dry matter, or basal diet supplemented with 200g of unprotected sunflower oil (SO) per cow daily. The total blood cholesterol concentration increased significantly in SO diet (5.58 mmol/L vs. 4.58 mmol/L) and triacilglycerol concentration did not change between the treatments. The SO diet significantly and rapidly elevate ratio of cis-9, trans-11 CLA (1.25% vs. 0.80%) and linoleic acid (3.56% vs. 2.75%) in milk, and simultaneously significantly decrease palmitic acid ratio (25.14% vs. 29.99%). High individual variations in blood cholesterol concentration and milk CLA proportions were determined, especially after the introduction of sunflower oil in the diet. Highly positive correlation between the linoleic acid and CLA proportions were determined (r = 0.80), and negative correlation between the total blood cholesterol concentration and milk fat content, during the SO treatment, were observed. In conclusion, relative small quantity of unprotected high linoleic sunflower oil in the diet significantly modified the fatty acid composition of Simmental cows’ milk, with the individual differences in the response to the diet changes.
Izvorni jezik
Engleski
Znanstvena područja
Veterinarska medicina
POVEZANOST RADA
Projekti:
053-0531854-1850 - Hranidbeno metaboličke osnove podizanja kvalitete animalnih namirnica (Poljičak Milas, Nina, MZOS ) ( CroRIS)
053-0531854-1866 - Antioksidansi u očuvanju zdravlja životinja i kvalitete animalnih namirnica (Milinković-Tur, Suzana, MZOS ) ( CroRIS)
Ustanove:
Veterinarski fakultet, Zagreb
