Influence of calf removal on the serum luteinizing hormone response to naloxone in the postpartum beef cow.

@article{Whisnant1986InfluenceOC,
  title={Influence of calf removal on the serum luteinizing hormone response to naloxone in the postpartum beef cow.},
  author={Carol Whisnant and Tim Kiser and Frederick N. Thompson and C Richard Barb},
  journal={Journal of animal science},
  year={1986},
  volume={63 2},
  pages={561-4}
}
Twelve anestrous, postpartum beef cows were used to determine the effect of calf removal on the effect of naloxone on serum luteinizing hormone (LH) concentrations. On d 1, six cows were injected iv with saline and six with 200 mg naloxone dissolved in saline. Blood samples were taken at 15-min intervals for 2 h before and 2 h after naloxone or saline administration. At the beginning of blood sampling, calves were removed from three cows in each treatment. At 48 h after calf removal (d 3), all… CONTINUE READING

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