White Leghorn hens were fed diets containing 0, 300, 600, or 1200 ppm technical grade DDT for three 28-day periods. The 1200 ppm diet caused tremors and 33% mortality in the final period, but no gross toxicity symptoms were seen in birds fed the other diets. Egg production was decreased during the third period by 600 or 1200 ppm. Egg weight was decreased during the third period by 600 or 1200 p...

Cattle, fat (of which no more than 0.1 ppm is tetrachlorvinphos per se) ..................................................................... 0 .2 8/18/13 Cattle, kidney (of which no more than 0.05 ppm is tetrachlorvinphos per se) ............................................................. 1 .0 8/18/13 Cattle, liver (of which no more than 0.05 ppm is tetrachlorvinphos per se) ...................

Less than 0.4 part per million (ppm) arsenic, 0.13 ppm cadmium, 0.2 ppm lead, 0.05 ppm mercury, 0.09 ppm selenium, and 10 ppm zinc. (c) The viable microbial content of the finished ingredient is: (1) Less than 10,000 organisms/gram by aerobic plate count. (2) Less than 10 yeasts and molds/ gram. (3) Negative for Salmonella, E. coli, coagulase positive Staphylococci, Clostridium perfringens, Clo...

OBJECTIVE This study evaluated the effects of three post-brushing mouthwashes containing 0 ppm F, 225 ppm F, and 500 ppm F, respectively, on salivary fluoride retention after brushing with 1450 ppm fluoride (as NaF) toothpaste and rinsing with water immediately after brushing. METHODS In this three-phase, randomized, cross-over study, an ion-specific electrode was used to measure salivary F l...

OBJECTIVE To evaluate the larvicidal and pupicidal potential of the methanolic extracts from Moringa oleifera (M. oleifera) plant seeds against malarial vector Anopheles stephensi (A. stephensi) mosquitoes at different concentrations (20, 40, 60, 80 and 100 ppm). METHODS M. oleifera was collected from the area of around Bharathiar University, Coimbatore. The dried plant materials were powdere...

BACKGROUND The aim of this study was to investigate the incidence and immediate and mid-term effects of heart valve prosthesis-patient mismatch (PPM) after mitral valve replacement using the GK bileaflet mechanical valve. MATERIAL AND METHODS A total of 493 cases of mechanical mitral valve replacement were performed in the departments of cardiac surgery in 7 hospitals from January 2000 to Jan...

First, the developmental toxic potential of n-butyl acetate (BA) was examined in SpragueDawley rats following whole body inhalation exposure, 6 h day-1, from day 6 to 20 of gestation, at concentrations of 0, 500, 1000, 2000 and 3000 ppm. Maternal toxicity was evidenced by significant decreases in body weight gain at 2000 and 3000 ppm, and by reduced food consumption at 1000 ppm and higher conce...

Acute and Subchronic Inhalation Toxicity of Chloroform in Rats and Mice: Tatsuya KASAI, et al. Japan Bioassay Research Center—In order to better characterize acute and subchronic toxicities of chloroform and to provide its basic toxicity data for risk assessment of humans exposed to chloroform in work and living environments, mice and rats of both sexes were exposed by inhalation to chloroform ...