Dietary linseed oil and selenate affect the concentration of fatty acids in selected tissues of sheep
The aim of the study was to determine the influence of the addition of 5% linseed oil (LO) and 2 µg Se as selenate (SeVI) per g of diet on body mass gain (BMG), feed conversion efficiency (FCE), and concentrations of fatty acids (FA), especially conjugated linoleic acid (CLA) isomers, in the liver,...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2012-09-01
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| Series: | Czech Journal of Animal Science |
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| Online Access: | https://cjas.agriculturejournals.cz/artkey/cjs-201209-0001_dietary-linseed-oil-and-selenate-affect-the-concentration-of-fatty-acids-in-selected-tissues-of-sheep.php |
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| author | M. Czauderna J. Kowalczyk M. Marounek |
| author_facet | M. Czauderna J. Kowalczyk M. Marounek |
| author_sort | M. Czauderna |
| collection | DOAJ |
| description | The aim of the study was to determine the influence of the addition of 5% linseed oil (LO) and 2 µg Se as selenate (SeVI) per g of diet on body mass gain (BMG), feed conversion efficiency (FCE), and concentrations of fatty acids (FA), especially conjugated linoleic acid (CLA) isomers, in the liver, heart, m. longissimus dorsi (MLD), m. biceps femoris (MBF), subcutaneous fat (SF), perirenal fat (PF), and intermuscular fat (IF) of sheep. Each group comprised 5 lambs with an average initial body weight of 25 ± 2 kg. For 35 days the sheep were fed the control or experimental diets enriched with 5% LO, SeVI, or LO and SeVI combined. The diets with LO, regardless of the presence of SeVI, increased BMG, FCE, and the mass of MBF, MLD, and the liver. The LO treatment increased the concentration of total CLA isomers in the liver, SF, PF, and MLD in comparison with the control. Dietary LO with or without SeVI resulted in negligible changes in the concentration of total CLA isomers in MBF. The diet enriched with LO, irrespective of the presence of SeVI, increased the concentrations of cis- monounsaturated fatty acids (cis-MUFA), polyunsaturated fatty acids (PUFA), as well as unsaturated fatty acids (UFA) in the liver, heart, and especially in SF and PF (i.e. energy storage tissues) compared with the control group and SeVI-fed sheep. Dietary SeVI more effectively increased the capacity of ∆9-desaturation in all adipose tissues as the concentration of cis9,trans11CLA increased in these tissues. The addition of SeVI to the diet decreased the yield of the catabolism of fatty acids in these adipose tissues and both muscles compared with the control sheep or other experimental groups. The diets enriched with LO with or without SeVI increased the nutritional value of MBF, MLD, and adipose tissues as the ratio of unsaturated FA/saturated FA increased. Our results of a short-term study provide useful information for nutritionists carrying out further investigations to improve the nutritional quality of feed for ruminants as well as humans. |
| first_indexed | 2024-04-10T08:26:17Z |
| format | Article |
| id | doaj.art-922383aba776401b83571f3ed11d33c5 |
| institution | Directory Open Access Journal |
| issn | 1212-1819 1805-9309 |
| language | English |
| last_indexed | 2024-04-10T08:26:17Z |
| publishDate | 2012-09-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Czech Journal of Animal Science |
| spelling | doaj.art-922383aba776401b83571f3ed11d33c52023-02-23T03:33:00ZengCzech Academy of Agricultural SciencesCzech Journal of Animal Science1212-18191805-93092012-09-0157938940110.17221/6313-CJAScjs-201209-0001Dietary linseed oil and selenate affect the concentration of fatty acids in selected tissues of sheepM. Czauderna0J. Kowalczyk1M. Marounek2The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jabłonna, PolandThe Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jabłonna, PolandInstitute of Animal Science, Prague-Uhříněves, Czech RepublicThe aim of the study was to determine the influence of the addition of 5% linseed oil (LO) and 2 µg Se as selenate (SeVI) per g of diet on body mass gain (BMG), feed conversion efficiency (FCE), and concentrations of fatty acids (FA), especially conjugated linoleic acid (CLA) isomers, in the liver, heart, m. longissimus dorsi (MLD), m. biceps femoris (MBF), subcutaneous fat (SF), perirenal fat (PF), and intermuscular fat (IF) of sheep. Each group comprised 5 lambs with an average initial body weight of 25 ± 2 kg. For 35 days the sheep were fed the control or experimental diets enriched with 5% LO, SeVI, or LO and SeVI combined. The diets with LO, regardless of the presence of SeVI, increased BMG, FCE, and the mass of MBF, MLD, and the liver. The LO treatment increased the concentration of total CLA isomers in the liver, SF, PF, and MLD in comparison with the control. Dietary LO with or without SeVI resulted in negligible changes in the concentration of total CLA isomers in MBF. The diet enriched with LO, irrespective of the presence of SeVI, increased the concentrations of cis- monounsaturated fatty acids (cis-MUFA), polyunsaturated fatty acids (PUFA), as well as unsaturated fatty acids (UFA) in the liver, heart, and especially in SF and PF (i.e. energy storage tissues) compared with the control group and SeVI-fed sheep. Dietary SeVI more effectively increased the capacity of ∆9-desaturation in all adipose tissues as the concentration of cis9,trans11CLA increased in these tissues. The addition of SeVI to the diet decreased the yield of the catabolism of fatty acids in these adipose tissues and both muscles compared with the control sheep or other experimental groups. The diets enriched with LO with or without SeVI increased the nutritional value of MBF, MLD, and adipose tissues as the ratio of unsaturated FA/saturated FA increased. Our results of a short-term study provide useful information for nutritionists carrying out further investigations to improve the nutritional quality of feed for ruminants as well as humans.https://cjas.agriculturejournals.cz/artkey/cjs-201209-0001_dietary-linseed-oil-and-selenate-affect-the-concentration-of-fatty-acids-in-selected-tissues-of-sheep.phpseleniumlinseed oilfatty acidlambliverheartmuscleadipose tissue |
| spellingShingle | M. Czauderna J. Kowalczyk M. Marounek Dietary linseed oil and selenate affect the concentration of fatty acids in selected tissues of sheep Czech Journal of Animal Science selenium linseed oil fatty acid lamb liver heart muscle adipose tissue |
| title | Dietary linseed oil and selenate affect the concentration of fatty acids in selected tissues of sheep |
| title_full | Dietary linseed oil and selenate affect the concentration of fatty acids in selected tissues of sheep |
| title_fullStr | Dietary linseed oil and selenate affect the concentration of fatty acids in selected tissues of sheep |
| title_full_unstemmed | Dietary linseed oil and selenate affect the concentration of fatty acids in selected tissues of sheep |
| title_short | Dietary linseed oil and selenate affect the concentration of fatty acids in selected tissues of sheep |
| title_sort | dietary linseed oil and selenate affect the concentration of fatty acids in selected tissues of sheep |
| topic | selenium linseed oil fatty acid lamb liver heart muscle adipose tissue |
| url | https://cjas.agriculturejournals.cz/artkey/cjs-201209-0001_dietary-linseed-oil-and-selenate-affect-the-concentration-of-fatty-acids-in-selected-tissues-of-sheep.php |
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