Milk fatty acid profiles in Holstein dairy cows fed diets based on corn stover or mixed forage

R. Han, N. Zheng, Y. Zhang, X. Zhao, D. Bu, P. An, X. Xu, Shimin Liu, J. Wang

    Research output: Contribution to journalArticle

    9 Citations (Scopus)

    Abstract

    In this study the influence of modulated concentrate-to-roughage ratio on the fatty acid profile of milk fat was investigated in dairy cows. Therefore, corn stover was compared with better-quality roughages. Two groups of in total 24 Holstein dairy cows (136 ± 37 days in milk) received either a high-forage diet (Diet MF, forage-to-concentrate ratio [F:C] = 60:40) with alfalfa hay, corn silage and Chinese wild rye as forage sources, or a low-forage diet with corn stover as forage source (Diet CS, F: C = 40:60) for an experimental period of nine weeks. During the study, milk yield as well content and fatty acid profiles of milk fat were examined. Dietary treatments had no effect on milk yield and milk fat content, whereas dry matter intake (p <0.01) and milk fat yield (p <0.05) were higher for Diet MF than for Diet CS. Compared with Diet CS, feeding Diet MF increased the daily intake of total unsaturated fatty acids and the C18:0 and C18:3 contents (p <0.01) in milk fat, whereas the total content of fatty acids
    Original languageEnglish
    Pages (from-to)63-71
    JournalArchives of Animal Nutrition
    Volume68
    Issue number1
    DOIs
    Publication statusPublished - 2014

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