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Journal

Kansas Agricultural Experiment Station Research Reports

2003

2003; Kansas Agricultural Experiment Station contribution; no. 03-272-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 908; Beef; Flax; Revalor-S implant; Growth factor 1 (IGF-1); Muscle IGF-1 mRNA; Finishing cattle

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Effects Of Flax Supplementation And A Revalor-S Implant On Circulating Insulin-Like Growth Factor 1 (Igf-1) And Muscle Igf-1 Mrna Levels In Finishing Cattle, J.D. Dunn, J.P. Kayser, A.T. Waylan, E.K. Sissom, B.J. Johnson, James S. Drouillard Jan 2003

Effects Of Flax Supplementation And A Revalor-S Implant On Circulating Insulin-Like Growth Factor 1 (Igf-1) And Muscle Igf-1 Mrna Levels In Finishing Cattle, J.D. Dunn, J.P. Kayser, A.T. Waylan, E.K. Sissom, B.J. Johnson, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Sixteen crossbred steers weighing 875 lb were used to evaluate the effects of a 5% ground flaxseed supplement and a combined trenbolone acetate/estradiol (TBA/E2) growth promoting implant, Revalor-S®, on both circulating insulin-like growth factor-1 (IGF-1) and local muscle IGF-1 mRNA concentrations. Steers were randomly assigned to one of four treatments: . 1) Flax/Implant, 2) No Flax/ Implant, 3) Flax/No Implant, 4) No Flax/No Implant. Serum was harvested from blood collected via jugular venipuncture on day 0 (before implantation or flax addition), 14, and 28. Muscle biopsy samples were obtained from the longissimus muscle on days 0, 14, and 28. Implanted …