Effects of extruded linseed dietary supplementation on milk yield, milk quality and lipid metabolism of dairy cows
Twenty Italian Friesian dairy cows were used in an experimental trial to study the effects of extruded linseed dietary supplementation on milk production, milk quality and fatty acid (FA) percentages of milk fat and total plasma lipids and plasma phospholipids. Control cows were fed a corn silage ba...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2010-04-01
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| Series: | Italian Journal of Animal Science |
| Subjects: | |
| Online Access: | http://www.aspajournal.it/index.php/ijas/article/view/1498 |
| _version_ | 1818906009411780608 |
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| author | N. Brogna G. Vignola M. Giammarco P. Pezzi |
| author_facet | N. Brogna G. Vignola M. Giammarco P. Pezzi |
| author_sort | N. Brogna |
| collection | DOAJ |
| description | Twenty Italian Friesian dairy cows were used in an experimental trial to study the effects of extruded linseed dietary supplementation on milk production, milk quality and fatty acid (FA) percentages of milk fat and total plasma lipids and plasma phospholipids. Control cows were fed a corn silage based total mixed ration (TMR) while treated animals also received 700g/head/d of extruded linseed supplementation. Feed intake was similar between groups. Milk yields was tendentially greater for cows fed extruded linseed. Milk urea content (P<0.05) were reduced by treatment. Results showed a significant increase n-3 FA concentration (particularly alpha linolenic acid) and a significant reduction of n-6/n-3 FA ratio in milk fat, total plasma lipids and plasma phospholipids (P<0.001); moreover a reduction trend (P<0.1) of arachidonic acid concentrations was observed in milk fat, total plasma lipids and plasma phospholipids. At last, treatment enhanced milk fat conjugated linoleic acid (CLA) percentage (P<0.05). |
| first_indexed | 2024-12-19T21:32:25Z |
| format | Article |
| id | doaj.art-8ba3c0b402a64f2184847179cee9c50d |
| institution | Directory Open Access Journal |
| issn | 1594-4077 1828-051X |
| language | English |
| last_indexed | 2024-12-19T21:32:25Z |
| publishDate | 2010-04-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Italian Journal of Animal Science |
| spelling | doaj.art-8ba3c0b402a64f2184847179cee9c50d2022-12-21T20:04:53ZengTaylor & Francis GroupItalian Journal of Animal Science1594-40771828-051X2010-04-0161s33333510.4081/ijas.2007.1s.333Effects of extruded linseed dietary supplementation on milk yield, milk quality and lipid metabolism of dairy cowsN. BrognaG. VignolaM. GiammarcoP. PezziTwenty Italian Friesian dairy cows were used in an experimental trial to study the effects of extruded linseed dietary supplementation on milk production, milk quality and fatty acid (FA) percentages of milk fat and total plasma lipids and plasma phospholipids. Control cows were fed a corn silage based total mixed ration (TMR) while treated animals also received 700g/head/d of extruded linseed supplementation. Feed intake was similar between groups. Milk yields was tendentially greater for cows fed extruded linseed. Milk urea content (P<0.05) were reduced by treatment. Results showed a significant increase n-3 FA concentration (particularly alpha linolenic acid) and a significant reduction of n-6/n-3 FA ratio in milk fat, total plasma lipids and plasma phospholipids (P<0.001); moreover a reduction trend (P<0.1) of arachidonic acid concentrations was observed in milk fat, total plasma lipids and plasma phospholipids. At last, treatment enhanced milk fat conjugated linoleic acid (CLA) percentage (P<0.05).http://www.aspajournal.it/index.php/ijas/article/view/1498Dairy cow, Linseed, N-3 fatty acids, CLA. |
| spellingShingle | N. Brogna G. Vignola M. Giammarco P. Pezzi Effects of extruded linseed dietary supplementation on milk yield, milk quality and lipid metabolism of dairy cows Italian Journal of Animal Science Dairy cow, Linseed, N-3 fatty acids, CLA. |
| title | Effects of extruded linseed dietary supplementation on milk yield, milk quality and lipid metabolism of dairy cows |
| title_full | Effects of extruded linseed dietary supplementation on milk yield, milk quality and lipid metabolism of dairy cows |
| title_fullStr | Effects of extruded linseed dietary supplementation on milk yield, milk quality and lipid metabolism of dairy cows |
| title_full_unstemmed | Effects of extruded linseed dietary supplementation on milk yield, milk quality and lipid metabolism of dairy cows |
| title_short | Effects of extruded linseed dietary supplementation on milk yield, milk quality and lipid metabolism of dairy cows |
| title_sort | effects of extruded linseed dietary supplementation on milk yield milk quality and lipid metabolism of dairy cows |
| topic | Dairy cow, Linseed, N-3 fatty acids, CLA. |
| url | http://www.aspajournal.it/index.php/ijas/article/view/1498 |
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