Plasma progesterone, luteinizing hormone concentrations, and granulosa cell responsiveness in heat-stressed hens.

@article{Novero1991PlasmaPL,
  title={Plasma progesterone, luteinizing hormone concentrations, and granulosa cell responsiveness in heat-stressed hens.},
  author={Rafael Novero and Mary M. Beck and Earl W. Gleaves and Alexander Lawrence. Johnson and J. A. Deshazer},
  journal={Poultry science},
  year={1991},
  volume={70 11},
  pages={
          2335-9
        }
}
Plasma progesterone and luteinizing hormone (LH) profiles were obtained during the first ovulatory cycle of heat-stressed (HS, 35 C; n = 24) and unstressed (US, 17 to 27 C; n = 24) hens using 30-min sampling intervals beginning approximately 6 h prior to ovulation. Progesterone levels from HS hens were lower from 6 h [.07 +/- .01 (SE) versus 1.66 +/- .25 ng/mL; P = .008] to predicted ovulation (.06 +/- .006 versus .70 +/- .18 ng/mL; P = .07). Likewise, LH levels from HS hens were lower from 6 h… CONTINUE READING
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