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| Poulsen, Nina Aagaard; Hein, Lisa; Gregersen, Sandra Beyer; Sørensen, Lars Peter; Larsen, L.B.; Kargo, Morten; Buitenhuis, Albert Johannes. |
| Abstract Milk fatty acid (FA) composition can be manipulated through feeding, and especially effects of grazing have been shown to promote a healthier milk FA profile due to increasing contents of beneficial FAs, like conjugated linoleic acid (CLA) and α-linolenic acid (C18:3, the main n3 FA in milk). In addition to diet-based manipulations, selective breeding for specific FA could also be a strategy for altering the FA profile as milk FA display low to moderate heritabilites (0.07-0.34 in Danish Holstein). Since 2015, milk samples from all Danish dairy cows under yield control have been analyzed using mid infrared spectroscopy. The FOSS Application Note 64 has subsequently been used to predict content of seven FA groups (short-chain FA (SCFA),... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding and genetics; Health and welfare. |
| Ano: 2017 |
URL: http://orgprints.org/32173/1/Poulsen%20et%20al%20SobCows%20poster_2.pdf |
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| Holmquist, Dino Demirovic; Buitenhuis, Albert Johannes; Nielsen, Niels Henning; Poulsen, Nina Aagaard; Munk, Arne; Kargo, Morten. |
| The aim was to quantify the factors influencing the detailed milk fatty acid profile. The results of large scale screening of the Danish dairy cattle population for a detailed milk fat composition revealed profound effects of breed, production system, parity, lactation stage and genetics. This opens up the possibility to differentiate the milk at farm level, by management and breeding strategies. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health Breeding and genetics. |
| Ano: 2018 |
URL: http://orgprints.org/35388/1/Holmquist_2018_MilkFattyAcid.pdf |
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| Strudsholm, Finn; Gregersen, Sandra Beyer; Larsen, Lotte Bach; Poulsen, Nina Aagaard; Hein, Lisa; Sørensen, Lars Peter; Buitenhuis, Albert Johannes; Kargo, Morten; Munk, Arne. |
| Projektet SOBcows har i samarbejde med RYK gennem 16 måneder i 2015/16 analyseret for indholdet af 11 fedtsyrer/fedtsyregrupper i kontrolmælken fra alle ydelseskontrollerede køer i Danmark. Dataanalyser af godt 3,5 mio. mælkeprøver viser, at det er muligt at påvirke sammensætning af mælkefedtet gennem avl. En foreløbig beregning af arvbarheden hen over laktationen viser, at alle fedtsyrekategorier har en genetisk variation og enkeltfedtsyrerne har arvbarheder på højde med den samlede fedtydelse. Det betyder arvbarheder i intervallet 0,25-0,44 afhængig af race og paritet. De genetiske sammenhænge varierer betydeligt gennem laktationen og er påvirket af den øgede kropsmobilisering i de første måneder efter kælvning. En anvendelse af fedtstyrebestemmelserne i... |
| Tipo: Report |
Palavras-chave: Dairy cattle Food security; Food quality and human health Feeding and growth Breeding and genetics Health and welfare. |
| Ano: 2016 |
URL: http://orgprints.org/30986/1/Kargo_2016_MaelkensFedtsyreprofil.pdf |
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