Effect of unsaturated fatty acid supplementation on performance and milk fatty acid profile in dairy cows fed a high fibre diet
| Autor: | Severino Segato, Sandro Tenti, Paolo Berzaghi, Anna-Lisa Stefani, Igino Andrighetto, Giorgio Marchesini |
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| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Italian Journal of Animal Science, Vol 8, Iss 3, Pp 391-403 (2010) |
| Druh dokumentu: | article |
| ISSN: | 1594-4077 1828-051X |
| DOI: | 10.4081/ijas.2009.391 |
| Popis: | The influence of unsaturated fatty acid (UFA) supplement on productive performance, physiochemical properties and fatty acid (FA) profile of milk, was investigated in lactating dairy cows fed with high fibre diets. According to a cross-over design, twelve cows were assigned to two experimental settings characterized by different FA profiles. Cows received a high fibre diet (~42% NDF on DM basis) supplemented with soybean based mixtures with these FA compositions: 92.0% of saturated FA (SFA), 2.8% of monounsaturated FA (MUFA) and 5.2% of polyunsaturated FA (PUFA) in the control diet (C-diet); 19.1% of SFA, 20.9% of MUFA and 60.0% of PUFA in the experimental diet (E-diet). The E-diet did not affect dry matter intake nor milk yield. Milk composition and coagulation traits resulted similar between treatments, except for the lactose level, which was lower in the E-diet (5.0 vs 4.8%; P |
| Databáze: | Directory of Open Access Journals |
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