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Effects of different variants of the FASN gene on production performance and milk fatty acid composition in Holstein × Simmental dairy cows

Author

Listed:
  • Maja Mauric

    (Department of Animal Husbandry, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia)

  • Tomislav Masek

    (Department of Animal Nutrition and Dietetics, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia)

  • Darija Bendelja Ljoljic

    (Department of Dairy Science, Faculty of Agriculture, University of Zagreb, Zagreb, Croatia)

  • Jozo Grbavac

    (Faculty of Agricultural and Foodbiotechnology, University of Mostar, Mostar, Bosnia and Hercegovina)

  • Kristina Starcevic

    (Department of Forensic and Judicial Veterinary Medicine, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia)

Abstract

Crossbreeding of Holstein cattle with bulls of other breeds has garnered increasing interest with respect to efforts to improve performance traits and to decrease problems with fertility and health. Therefore, the objective of this study was to compare the effects of the fatty acid synthase (FASN) gene on milk production traits and fatty acid composition of Simmental and first-generation Holstein × Simmental crossbred cows. A total of 105 cows (72 Simmental and 33 crossbred Holstein) were genotyped using the PCR-RFLP method and their fatty acid profiles were analysed. The crossbred Holstein cows with diplotype TW/AR had significantly higher fat content and yield compared to the purebred Simmental cows of the same diplotype. The Holstein × Simmental cows with the diplotype AR/AR were also characterised by significantly lower content of C16:0 and saturated fatty acids, but higher C18:1n9, monounsaturated fatty acid and monounsaturated fatty acid/saturated fatty acid content compared to the same diplotype of the Simmental cattle. These results indicate that with accurate breeding plans, crossbreeding Holstein cows with Simmental bulls could be directed towards a more desirable fatty acid composition of milk and dairy products.

Suggested Citation

  • Maja Mauric & Tomislav Masek & Darija Bendelja Ljoljic & Jozo Grbavac & Kristina Starcevic, 2019. "Effects of different variants of the FASN gene on production performance and milk fatty acid composition in Holstein × Simmental dairy cows," Veterinární medicína, Czech Academy of Agricultural Sciences, vol. 64(3), pages 101-108.
    • Handle: RePEc:caa:jnlvet:v:64:y:2019:i:3:id:73-2018-vetmed
    DOI: 10.17221/73/2018-VETMED
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