The effect of ram exposure on uterine involution and luteal function during the postpartum period of hair sheep ewes in the tropics.

@article{Godfrey1998TheEO,
  title={The effect of ram exposure on uterine involution and luteal function during the postpartum period of hair sheep ewes in the tropics.},
  author={Robert W. Godfrey and M. L. Gray and James R. Collins},
  journal={Journal of animal science},
  year={1998},
  volume={76 12},
  pages={
          3090-4
        }
}
St. Croix White hair sheep ewes lambing in July (n = 20) or November (n = 26) were used to evaluate the effect of ram exposure on uterine involution and postpartum luteal function. Ewes were exposed to an epididymectomized ram (EXPOSED) beginning on d 7 after lambing (d 0) or kept isolated from rams (CONTROL) through d 63. The width of each uterine horn was measured using transrectal ultrasonography at 3.5-d intervals beginning within 3 d after lambing. Jugular blood samples were also collected… 

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