Thyroxine, triiodothyronine, reverse-triiodothyronine, and other physiological characteristics of periparturient cows fed restricted energy.

@article{Pethes1985ThyroxineTR,
  title={Thyroxine, triiodothyronine, reverse-triiodothyronine, and other physiological characteristics of periparturient cows fed restricted energy.},
  author={Gy{\"o}rgy Pethes and J Bokori and P{\'e}ter Rudas and Vilmos L{\'a}szl{\'o} Freny{\'o} and S. Gy. Fekete},
  journal={Journal of dairy science},
  year={1985},
  volume={68 5},
  pages={1148-54}
}
Eighty-six cows were assigned to two equal groups with group A fed according to National Research Council recommendations for total digestible nutrients for the 8 wk before parturition and group B was fed 21% higher energy in the first 6 wk and 15% higher in the last 2 preparturient wk. Thyroxine in blood serum decreased in both groups 14 days before and on the day of delivery. It was significantly lower in group A. Findings were similar with triiodothyronine. Blood serum concentrations of… CONTINUE READING

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