Effect of vaginal and cervical deposition of semen on the fertility of sheep inseminated with frozen-thawed semen.

@article{Paulenz2005EffectOV,
  title={Effect of vaginal and cervical deposition of semen on the fertility of sheep inseminated with frozen-thawed semen.},
  author={Heiko Paulenz and Lennart S{\"o}derquist and Tormod {\AA}dn\oy and Anne Bang Nordstoga and K Andersen Berg},
  journal={The Veterinary record},
  year={2005},
  volume={156 12},
  pages={372-5}
}
The effect of vaginal and cervical deposition of frozen-thawed semen on the fertility of sheep was tested in a field trial in which 543 Norwegian crossbred ewes aged between six months and five-and-a-half years from 10 farms were inseminated after natural oestrus. Cervical insemination with 200 x 10(6) spermatozoa resulted in 25-day non-return and lambing rates of 75.4 and 72.7 per cent, respectively, and vaginal insemination gave rates of 71.3 and 67.4 per cent; the cervical inseminations… CONTINUE READING

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