Effects of ractopamine and protein source on growth performance and carcass characteristics of feedlot heifers.

@article{Walker2006EffectsOR,
  title={Effects of ractopamine and protein source on growth performance and carcass characteristics of feedlot heifers.},
  author={Donald K Walker and Evan C. Titgemeyer and James S. Drouillard and E. R. Loe and B. E. Depenbusch and A. S. Webb},
  journal={Journal of animal science},
  year={2006},
  volume={84 10},
  pages={2795-800}
}
An experiment was conducted to determine the relationship between feeding ractopamine and different amounts of MP on growth and carcass characteristics of feedlot heifers. Seventy-two crossbred heifers (475 kg of initial BW) were fed individually a diet based on steam-flaked corn for ad libitum intake for 29 d. Heifers were implanted with 140 mg of trenbolone acetate and 14 mg of estradiol-17beta 60 d before the experiment. Treatments were arranged as a 2 x 3 factorial and included 0 or 200 mg… CONTINUE READING
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