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"Experientia docet" - Experience is the best teacher

The effect of dietary energy and the inclusion of a β-adrenergic agonist in the diet on the meat quality of feedlot lambs

  • 2013
  • Issue: 5
  • Volume: 43
T.S. Brand, M.P. Genis, L.C. Hoffman, W.F.J. van de Vyver, R. Swart & G.F. Jordaan Page: 140 - 145

β-adrenergic agonists are commonly used in livestock production to enhance meat production and decrease the fat content of the body. β-adrenergic agonists normally improve growth performance. Recent increases in meat prices and the change in consumer preference towards leaner meat…

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Effects of ractopamine and gender on protein turnover in skeletal muscle of implanted steers and heifers

  • 2011
  • Issue: 1
  • Volume: 41
D.K. Walker, E.C. Titgemeyer, D.E. Johnson, S.B. Laudert & B.J. Johnson Page: 16 - 23

Effects of the β-agonist, ractopamine-HCl (ractopamine), on skeletal muscle protein turnover were evaluated in 16 steers (512 kg) and 16 heifers (473 kg).  Treatments were arranged in a 2 × 2 factorial design and included gender (steer vs. heifer) and…

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Interactive effect of dietary protein level and zilpaterol hydrochloride on feedlot performance and meat quality of steers

  • 2010
  • Issue: 3
  • Volume: 40
H.A. O’Neill, N.H. Casey and E.C. Webb Page: 185 - 189

Bonsmara type steers were used to determine the effect of dietary zilpaterol hydrochloride (ZH) in combination with different dietary crude protein (CP) levels (100, 120 and 140 g CP/kg) on growth performance and meat quality. Treatment groups (T) consisted of…

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