Materials and methods: In Experiment One, a total of 224 nursery pigs were used in a 28-day trial. Dietary treatments included a control (without ORG or antimicrobial), the control diet containing neomycin and oxytetracycline (154 mg per kg of each; NT), ORG, or both NT and ORG. In Experiment Two, the fi ve dietary treatments included the control, control diet plus NT, and control diet with ORG...

Diethylstilbestrol (DES) has been associated with vaginal neoplasia and malformations in humans. We have studied a test population of 504 female Wistar rats given diethylstilbestrol at from 0.0 to 0.5 mg/kg maternal body weight on days 18, 19, and 20 of gestation. Animals were euthanized in extremis, or at 2 years of age. The incidence of vaginal epithelial tumors was dose related. The types of...

effect of adding hibiscus sabdariffa (hs) in diet on performance and immune response of broilers was examined during aflatoxicosis using a total of 192 day-old ross 308 male chicks in a completely randomized design with four treatments, four replicates and 12 chicks per each replicate. treatments were include: 1. negative control (without additives), 2. positive control (2.5 mg aflatoxin b1/kg)...

Background and objectives: This study was designed to investigate the effect of ethanol extract of Allium ampeloprasum (Leek) leaves on blood lipid profile in rats. Due to the side effects of chemical drugs and social tendency toward herbal medicines, it’s justified to propose new herbal remedies for prevention of cardiovascular disease. Methods: Thirt...

In the present study we investigated the effect of a two-year treatment period with a diet containing 3.2g, 0.8 g and 0.15 g Mg/kg, on the rat liver transcriptome. At the end of the study, a treatment-dependent decrease in plasmatic Mg concentration was found (0.86 +/- 0.02 mmol/L, 0.70 +/- 0.02 mmol/L and 0.52 +/- 0.03 mmol/L for groups receiving 3.2g, 0.8 g and 0.15 g Mg/kg diet, respectively...

The aims of this work were to quantify the requirements of Zn for wool growth in growing male Merino lambs, and to describe the histological lesions of Zn deficiency in skin and wool follicles. Four groups of male Merino lambs (n 4) weighing 22 kg were fed ad lib. for 96 d on diets that contained 4 (basal diet), 10, 17 or 27 mg Zn/kg. Sheep in a fifth group were fed on the diet containing 27 mg...

The purpose of this study was to investigate the effect of dietary magnesium (Mg) supplementation on bone loss in rats fed a high phosphorus (P) diet. Weanling Wistar strain rats were randomly divided into four dietary groups of 6 rats each and fed their respective diets; a diet containing 0.3% P and 0.05% Mg (C), a diet containing 1.5% P and 0.05% Mg (HP), a diet containing 0.3% P and 0.15% Mg...

The effect of four dose levels of piroxicam administered during different stages of colon tumor development was studied in male F344 rats to obtain a data base on the efficacy of piroxicam as an inhibitor of colon carcinogenesis. Piroxicam was added at levels of 25, 50, 75, and 150 ppm to the NIH-07 open-formula diet and fed to male F344 rats starting 1, 13, and 23 wk after the carcinogen admin...