Ruminal infusions of cobalt-EDTA reduce mammary delta9-desaturase index and alter milk fatty acid composition in lactating cows.

@article{Shingfield2008RuminalIO,
  title={Ruminal infusions of cobalt-EDTA reduce mammary delta9-desaturase index and alter milk fatty acid composition in lactating cows.},
  author={Kevin J. Shingfield and Anu Ar{\"o}l{\"a} and Seppo Ahvenj{\"a}rvi and Aila Vanhatalo and Vesa Toivonen and J. Mikko Griinari and P Huhtanen},
  journal={The Journal of nutrition},
  year={2008},
  volume={138 4},
  pages={710-7}
}
Ruminal administration of a triple indigestible marker system comprised of cobalt EDTA (CoEDTA), ytterbium acetate (YbAc), and chromium-mordanted straw (CrS) decreases product:substrate ratios for Delta9-desaturase in bovine milk fat. This experiment was designed to identify the marker(s) responsible and develop an alternative system for simultaneous determination of nutrient flow in the gastro-intestinal tract and milk fatty acid composition. Five lactating dairy cows were used in a 5 x 5… CONTINUE READING
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