ORIGINAL PAPER
Dietary selenite and conjugated linoleic acid isomers influence fatty acid concentrations in the liver and femoral muscles of rats
 
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The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, 05-110 Jabłonna, Poland
 
 
Publication date: 2009-06-24
 
 
Corresponding author
M. Czauderna   

The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, 05-110 Jabłonna, Poland
 
 
J. Anim. Feed Sci. 2009;18(3):564-581
 
KEYWORDS
ABSTRACT
The aim of the study was to determine the influence of diets containing 1.5% conjugated linoleic acid isomers (CLAmix) and/or a high or low level of selenite (0.2 ppm Se (LSe) or 0.5 ppm Se (HSe)) on the body weight gain (BWG), feed conversion efficiency (FCE), and concentrations of CLA isomers and other fatty acids (FA) in the liver and femoral muscle of female rats fed ad libitum these experimental diets for 6 weeks. It was found that the diet containing the CLAmix and 0.5 ppm Se (HSe) resulted in the highest increase in BWG and FCE compared with values for BWG and FCE of all other groups. This diet most efficiently increased the concentration of Se in the liver and muscles. The content of CLA isomers in muscles was ~20-fold higher than in the liver. There were usually no differences in the concentrations of c9t11CLA, t10c12CLA and the sum of CLA isomers in the liver and muscles of rats fed the diet with CLAmix with or without HSe, whereas these values in the liver and muscles were usually lower for rats fed the diet enriched in CLAmix and 0.2 ppm Se (LSe) compared with those fed the diet with CLAmix. The diets enriched in CLAmix and/or Se (as LSe or HSe) caused a decrease in the Δ9-desaturase index only in the liver. The current study shows that the highest values of the Δ4-, Δ5- and Δ6-desaturase indexes were in muscles of rats fed the diet enriched in CLAmix. This diet most efficiently increased the value of the Δ4-desaturase index in the liver, the desaturase responsible for the most efficient increase in the content of c4c7c10c13c16c19C22:6n-3 in the liver. Our study indicates that dietary CLAmix stimulated β-oxidation of FA in skeletal muscles, while promoting the accumulation of FA, particularly n-3 polyunsaturated fatty acids (PUFA), in the liver. The diet enriched in CLAmix and HSe assured satisfactory ratios of PUFA to saturated FA and PUFA to the sum of all assayed FA in the liver and muscles. These findings are valuable information for nutritionists carrying out research to improve the nutritive value of food for human health. Further studies are necessary to thoroughly investigate the effects of dietary CLA isomers as well as interactions of CLA isomers and Se compounds on the human health.
 
CITATIONS (12):
1.
The effect of different forms of sunflower products in diets for lambs and storage time on meat quality
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2.
Seleno-methionine decreases biohydrogenation of C18 unsaturated fatty acids in ovine ruminal fluid incubated in vitro with α-linolenic acid
Marian Czauderna, Agnieszka J. Rozbicka-Wieczorek, Edyta Więsyk, Katarzyna A. Krajewska-Bienias
European Journal of Lipid Science and Technology
 
3.
The effect of supplementing sheep with rapeseed and linseed oils on the activity of pancreatic digestive enzymes
Barbara Kowalik, Małgorzata P. Majewska, Renata Miltko, Grzegorz Bełżecki
Journal of Animal Physiology and Animal Nutrition
 
4.
Punica granatum (Pomegranate) Seed Oil and Momordica charantia (Bitter Melon) Extract Affect the Lipid's Profile and Oxidative Stability of Femoral Muscles of Rats
Małgorzata Białek, Agnieszka Białek, Tomasz Lepionka, Paweł Paśko, Agnieszka Galanty, Andrzej Tokarz, Marian Czauderna
European Journal of Lipid Science and Technology
 
5.
Growth performance, carcass and meat quality of lambs supplemented different vegetable oils
Renata Miltko, Małgorzata Majewska, Grzegorz Bełżecki, Katarzyna Kula, Barbara Kowalik
Asian-Australasian Journal of Animal Sciences
 
6.
Chemical Form of Dietary Selenium Affects the Fatty Acids Profile and Oxidative Stability of Muscles of Broilers Supplemented with Lycopene and Oils
Marian Czauderna, Małgorzata Białek, Agnieszka Białek, Bogdan Śliwiński, Franciszek Brzóska
European Journal of Lipid Science and Technology
 
7.
Maternal and Early Postnatal Diet Supplemented with Conjugated Linoleic Acid Isomers Affect Lipid Profile in Hearts of Offspring Rats with Mammary Tumors
Małgorzata Białek, Agnieszka Białek, Marian Czauderna
Animals
 
8.
Rapeseed and linseed oil supplementation affects hydrolytic activities in the rumen of sheep
Małgorzata Majewska, Renata Miltko, Agata Krawczyńska, Grzegorz Bełżecki, Barbara Kowalik
Livestock Science
 
9.
Changes in the content and intensity of oxidation of lipid compounds in the kidneys of lambs fed diets with rapeseed and fish oils – effect of antioxidant supplementation
M. Białek, M. Czauderna, K. Zaworski, M. Karpińska, M. Marounek
Journal of Animal and Feed Sciences
 
10.
Comparison of the Effect of Synthetic (Tannic Acid) or Natural (Oak Bark Extract) Hydrolysable Tannins Addition on Fatty Acid Profile in the Rumen of Sheep
Małgorzata Majewska, Renata Miltko, Grzegorz Bełżecki, Aneta Kędzierska, Barbara Kowalik
Animals
 
11.
Enrichment of lamb rations with carnosic acid and seleno-compounds affects the content of selected lipids and tocopherols in the pancreas
M. Białek, M. Karpińska, M. Czauderna
Journal of Animal and Feed Sciences
 
12.
A new internal standard for HPLC assay of conjugated linoleic acid in animal tissues and milk
M. Czauderna, J. Kowalczyk, M. Marounek, J.P. Michalski, A.J. Rozbicka-Wieczorek, K.A. Krajewska
Czech Journal of Animal Science
 
ISSN:1230-1388
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