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Showing 1 to 8 of 8 for “"trenbolone acetate"”.
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The Environmental Fate and transport of Trenbolone Acetate Metabolites in Agro-Ecosystems
Trenbolone acetate (TBA) is a potent synthetic androgen that is widely used to promote weight gain in beef cattle. A possible consequence of its use is endocrine disruption in aquatic vertebrates, which could occur if trace concentrations (>10 ng/L) reach receiving waters. While the ecotoxicity of …
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Primary Sex Reversal in Female <em>Betta splendens</em> following Treatments with Temperature and Trenbolone Acetate.
… natural conditions or laboratory manipulations. Trenbolone Acetate (TBA), a synthetic anabolic-androgenic steroid used mainly in the cattle industry, was applied to female <em>Betta splendens</em>, a sexually dimorphic fish. Previously, females were analyzed for secondary sex characteristics …
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Occurrence, Fate and Transport of the Primary Metabolites of Trenbolone Acetate in CAFO Soils and Surface Water Runoff
… in fish species to the presence of 17-α trenbolone and 17-β trenbolone, the primary metabolites of the synthetic steroid trenbolone acetate. Therefore, to measure steroid concentrations of these metabolites in feedlot runoff, a series of rainfall simulation experiments were conducted on …
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Characterization of estrogen and glucocorticoid receptors, skeletal muscle protein turnover and tissue growth in lambs treated with trenbolone acetate and estradiol
A study was conducted to determine the effects of trenbolone acetate (TBA) and estradiol-17B (E2) implantation on the characteristics of the glucocorticoid and E2 receptor, skeletal muscle protein turnover and tissue growth. Twenty-four lambs were utilized. Trenbolone acetate did not ,affect …
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Effects of embryonic exposure to androgen-active endocrine disrupting chemicals in Japanese quail
… EDCs, anti-androgenic DDE and androgenic trenbolone acetate, impairs development of the bursa of Fabricius in Japanese quail, providing a possible mechanism for EDC-induced immunosuppression. The bursa is a primary immune organ responsible for development of the humoral part of the immune …
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Effect of Zilpaterol hydrochloride and steroid implantation on yearling steer feedlot performance, carcass characteristics, and skeletal muscle gene expression
… treatments were used to measure the effects of trenbolone acetate (TBA) and estradiol (E[subscript]2) on performance and the amount of MHC mRNA in skeletal muscle of finishing steers. It was determined that anabolic steroid implants improve live animal performance, however there was no …
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IMPACT OF CONVENTIONAL AND PRECISION CATTLE MANURE APPLICATION METHODS ON HORMONE CONCENTRATIONS AND ACTIVITIES IN SURFACE WATER AND SOIL
… in vitro bioassays. Targeted analytes included trenbolone acetate, 17α-trenbolone, 17β-trenbolone, trendione, melengestrol acetate, and melengestrol. No target analyte concentrations were detected in any water, soil, or windrow pile manure. Fresh rectal feces contained 17α-trenbolone and …
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In vitro model of the fathead minnow hypothalamic-pituitary-gonadal axis for toxicological evaluation
… tested by evaluating the effects of a known EDC, trenbolone acetate (TRB), with the hypothesis that the responses would correlate with those of the HPG in an intact fish. Brain (hypothalamus), pituitary, gonad, and liver tissue were removed from euthanized adult male and female fathead minnow and …