Intravascular metabolism of a fish oil-supplemented lipid emulsion in an experimental dog model: Effects on plasma and liver lipids, lipoproteins and incorporation of long-chain n3 fatty acids into plasma lipids

1993 ◽  
Vol 12 (2) ◽  
pp. 118-120 ◽  
Author(s):  
C. Rössle ◽  
Y.A. Carpentier
2011 ◽  
Vol 159 (1) ◽  
pp. 33-38.e1 ◽  
Author(s):  
Rita D’Ascenzo ◽  
Sabrina D’Egidio ◽  
Lorena Angelini ◽  
Maria Paola Bellagamba ◽  
Marco Manna ◽  
...  

2010 ◽  
Vol 104 (1) ◽  
pp. 56-66 ◽  
Author(s):  
K. J. Shingfield ◽  
M. R. F. Lee ◽  
D. J. Humphries ◽  
N. D. Scollan ◽  
V. Toivonen ◽  
...  

Based on the potential benefits to human health, there is interest in developing sustainable nutritional strategies to enhance the concentration of long-chainn-3 fatty acids in ruminant-derived foods. Four Aberdeen Angus steers fitted with rumen and duodenal cannulae were used in a 4 × 4 Latin square experiment with 21 d experimental periods to examine the potential of fish oil (FO) in the diet to enhance the supply of 20 : 5n-3 and 22 : 6n-3 available for absorption in growing cattle. Treatments consisted of total mixed rations based on maize silage fed at a rate of 85 g DM/kg live weight0·75/d containing 0, 8, 16 and 24 g FO/kg diet DM. Supplements of FO reduced linearly (P < 0·01) DM intake and shifted (P < 0·01) rumen fermentation towards propionate at the expense of acetate and butyrate. FO in the diet enhanced linearly (P < 0·05) the flow oftrans-16 : 1,trans-18 : 1,trans-18 : 2, 20 : 5n-3 and 22 : 6n-3, and decreased linearly (P < 0·05) 18 : 0 and 18 : 3n-3 at the duodenum. Increases in the flow oftrans-18 : 1 were isomer dependent and were determined primarily by higher amounts oftrans-11 reaching the duodenum. In conclusion, FO alters ruminal lipid metabolism of growing cattle in a dose-dependent manner consistent with an inhibition of ruminal biohydrogenation, and enhances the amount of long-chainn-3 fatty acids at the duodenum, but the increases are marginal due to extensive biohydrogenation in the rumen.


2008 ◽  
Vol 138 (5) ◽  
pp. 889-896 ◽  
Author(s):  
Eun J. Kim ◽  
Sharon A. Huws ◽  
Michael R. F. Lee ◽  
Jeff D. Wood ◽  
Stefan M. Muetzel ◽  
...  

2018 ◽  
Vol 15 (30) ◽  
pp. 696-703
Author(s):  
H. D. CHIRINOS ◽  
J. A. BARRA ◽  
D. D. CRUZ ◽  
G. M. HUALLPAMAYTA

To improve the parameters of the transesterification process by the basic route for the production of biodiesel, crude fish oil (AP), obtained from the viscera of fish, and residual vegetable oils (AR) blenders were used. Because the AP contains high percentages of long chain polyunsaturated fatty acids that are responsible for its instability is that it was mixed with increasing percentages of AR. This translated into a higher conversion performance to biodiesel by the basic route, also depending on the level of free fatty acids. The index of methyl esters obtained from the blends and the original oils was analyzed. The calculation of the performance of each reaction is made based on the produced esters. The analysis is complemented by measuring the kinematic viscosity of the blends and the pure oils, as well as the biodiesel produced. The results showed yields higher than 90% when using the process of transesterification of the blends by the basic route. The standardization of blends by its acidity index is of great importance reaching a maximum value of 3.5 mg KOH/g. On the other hand, the viscosity of the biodiesel produced, from the blends, is kept within international standards; In addition, the process conditions are improved.


1999 ◽  
Vol 1999 ◽  
pp. 115-115 ◽  
Author(s):  
A.M. Wachira ◽  
L.A. Sinclair ◽  
R.G. Wilkinson ◽  
G. Demirel ◽  
M. Enser ◽  
...  

The benefits of long chain polyunsaturated fatty acids (PUFA) to human health, especially those of the n-3 series are now widely recognised. In a previous experiment (Wachira et al. 1998) supplementing diets with whole linseed or fish oil increased n-3 fatty acid levels in lamb muscle. To raise these further the whole linseed can be treated with formaldehyde to increase protection in the rumen. Dietary antioxidants such as vitamin E can control lipid oxidation but information on their effects on lamb performance and fatty acid composition is limited. The current experiments investigated the effects of different dietary PUFA sources and vitamin E levels on growth and fatty acid composition in two sheep breeds. Detailed results of the effects of vitamin E are presented in the accompanying abstract by Enser et al.


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