Effects of feeding ponderosa pine needles during pregnancy: comparative studies with bison, cattle, goats, and sheep.

@article{Short1992EffectsOF,
  title={Effects of feeding ponderosa pine needles during pregnancy: comparative studies with bison, cattle, goats, and sheep.},
  author={Rebecca E. Short and L. Ferguson James and Kip E. Panter and R. B. Staigmiller and Robert A. Bellows and Janine Malcolm and Stephen P. Ford},
  journal={Journal of animal science},
  year={1992},
  volume={70 11},
  pages={
          3498-504
        }
}
Four experiments were conducted to determine the effect of feeding dried pine needles (Pinus ponderosa; PN) on the abortion rate of ruminants. In Exp. 1, cattle were fed 5.4 kg of PN daily for 21 d starting at 116, 167, 215, or 254 d of pregnancy. The PN did not cause abortions when started at 116 d; thereafter, the percentage of cows that aborted increased linearly, and the interval to abortion decreased linearly (both P < .01); all cows fed PN beginning at 254 d aborted. In Exp. 2, cattle… CONTINUE READING

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