Recent studies have suggested that a subset of estrogen responses arise via modulation of triiodothyronine (T3) actions, and depend on T3 for expression: other estrogen responses are not T3-dependent. Moreover, tamoxifen acts as a full estrogen agonist in T3-dependent responses but behaves as an antiestrogen in T3-independent responses. T3 directly induces a variety of metabolic enzymes and pro...

An experiment was conducted to study the effect of different levels cinnamon essential oil (CEO) on oxidative stress indices, immune response and intestinal morphology broiler chickens. Day old chicks (n=180) were randomly allocated six dietary groups. Control group (T0) fed basal diet without antibiotic growth promoter (AGP), Group 2 with AGP (T1) while containing graded level CEO (200, 300, 4...

The in vivo growth hormone (GH) response of immature domestic fowl to thyrotrophin-releasing hormone (TRH) and GH-releasing factor (GRF) was suppressed in birds fed diets supplemented (1 ppm) with triiodothyronine (T3) or given bolus intraperitoneal (ip) injections (100 micrograms/kg for 10 d) of T3. Supplementation (ppm) of the diet with T4 had no effect on secretagogue- induced GH release. Ex...

Background: Silver nano-particles have anti-fungal properties. In the present study, silver nano-particles were synthesized by electrochemical method and its effects on the serum levels ofT3 and T4 hormones were investigated in adult male rats. Methods: In this experimental study, 28 adult male Wistar rats weighing approximately 180-220g were divided into 4 groups of 7 rats. The control grou...

ABSTRACTObjective(s): Silver-cobalt nanoparticles have anti-fungal properties and are used in medicine. In the present study, the effect of silver-cobalt nanoparticles on serum levels of T3 and T4 hormones was investigated. Silver-cobalt nanoparticles were synthesized by chemical reduction.Methods: In this experimental study, 28 male adult Wistar rats (approximately 180-220 gr...

An experiment was conducted to determine the minimum levels of nonphytate P (NPP) with and without phytase that can be continuously and safely used during the growing and laying periods for diminishing P excretion to the environment. The experiment consisted of a 2 x 8 factorial arrangement of the treatments with two strains (Babcock B-300 and Hy-Line W-98) and eight diets. The birds of the con...

The present study was carried out on broilers to study the effect of oral administration of vitamin E and selenium (E-care Se) on growth performance, haematological and biochemical parameters for a period of 42 days (6 weeks). A total of 90 oneday-old broiler chicks were divided into three equal groups: T1, T2 and T3. Group T1 was maintained as control and was fed only with the basal diet throu...