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
| Autor: | James S. Drouillard, A.T. Waylan, Bradley J. Johnson, J.P. Kayser, J.D. Dunn, E. K. Sissom |
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| Rok vydání: | 2003 |
| Předmět: |
Longissimus muscle
medicine.medical_specialty Muscle biopsy Growth promoting medicine.diagnostic_test Computer Networks and Communications business.industry medicine.medical_treatment Trenbolone acetate Insulin-like growth factor chemistry.chemical_compound Endocrinology Animal science chemistry Mrna level Hardware and Architecture Internal medicine medicine Implant business Software |
| Zdroj: | Kansas Agricultural Experiment Station Research Reports. :199-202 |
| ISSN: | 2378-5977 |
| Popis: | 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 steers had 52 and 84% higher (P |
| Databáze: | OpenAIRE |
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