The phthalate ester di-n-butylphthalate (DBP) is used extensively in the manufacture of plastics; its reproductive toxicity was tested in rats by the National Toxicology Program's Reproductive Assessment by Continuous Breeding protocol. Levels of 0.1, 0.5, and 1.0% DBP in the diet were selected, and this dosing design yielded average daily DBP intakes of 52, 256, and 509 mg/kg for males and 80,...

In order to evaluate the safety of CH-19 Sweet extract that contains capsinoids, teratology studies were conducted in pregnant Sprague-Dawley rats (20 rats per group) and pregnant New Zealand white rabbits (17 to 22 animals per group). The test substance was administered to rats by gavage for 11 days on gestation days 7 to 17 at doses of 0 (vehicle), 1.25, 2.5, and 5.0 ml/kg and to rabbits for ...

this study demonstrates the changes in six different pathophysiological parameters such as body weight, body temperature, fecal pellet count, blood-brain barrier (bbb) permeability, plasma corticosterone level and emergence of hemorrhagic peptic ulcer spots due to exposure to high environmental heat in three different age groups of freely moving rats. methods: each age group of rats was sub div...

in order to determination the methionine requirement of arian broilers chickens during the starter period, a trial with 700 broiler chickens in a completely randomized design with 7 treatments, 5 replicates and 20 chicks in each experimental units was performed. experimental groups were consisted of 0.38, 0.43, 0.48, 0.53, 0.58, 0.63 and 0.68  % of methionine. other amino acids provided higher ...

An experiment using 81 crossbred swine was conducted to evaluate quantitative and percentage chemical compositional changes of swine from 1.5 kg (birth) to 145 kg body weight. Groups of eight pigs were sacrificed at 1.5, 6.4 and 18 kg, and then at 18 kg increments to 145 kg. Body composit ion was determined by grinding the entire body, minus digesta, partit ioning the carcass from other body co...