Reduced response to an estrous induction program in postpartum beef cows treated with zilpaterol and gaining body weight.

@article{Guzmn2012ReducedRT,
  title={Reduced response to an estrous induction program in postpartum beef cows treated with zilpaterol and gaining body weight.},
  author={A{\'i}da Guzm{\'a}n and Everardo Gonz{\'a}lez-Padilla and P Garc{\'e}s-Y{\'e}pez and Jorge V{\'i}ctor Rosete-Fern{\'a}ndez and Ren{\'e} Carlos Calder{\'o}n-Robles and C. Rodr{\'i}guez Murcia and Carlos Gutierrez Gutierrez},
  journal={Animal reproduction science},
  year={2012},
  volume={130 1-2},
  pages={1-8}
}
In beef cows, reduced energy intake delays first ovulation postpartum and is associated with lesser insulin, IGF-I and leptin concentrations. However, the close relationship among these hormones mask their individual roles in the reinitiation of ovarian activity. A β-adrenergic receptor agonist (βAR) was used to increase body condition score (BCS) and yet reduce body fat and leptin serum concentration to determine the specific role of leptin in the postpartum ovarian activity. Beef cows (n=77… CONTINUE READING