Timed-pregnant Fischer 344 rats and New Zealand White rabbits were exposed to ethylene glycol monobutyl ether vapors by inhalation on gestational days 6 through 15 (rats) or 6 through 18 (rabbits) at concentrations of 0, 25, 50, 100 or 200 ppm. The animals were sacrificed on gestational day 21 (rats) or 29 (rabbits). In rats, exposure to 200 or 100 ppm resulted in maternal toxicity (clinical si...

This article reports the inhibitory effects of phosphonated chitosan (PCH, synthesized from chitosan (CHS) by a Mannich-type reaction) on the in vitro silicic acid condensation. In particular, the ability of PCH to retard silicic acid condensation in aqueous supersaturated solutions at circumneutral pH is studied. Furthermore, the effect of anionic carboxymethyl inulin (CMI) polyelectrolyte on ...

Spinosad (Dow AgroSciences) is a mixture of tetracyclic-macrolide compounds produced by a soil actinomycete and has been classified as a bioinsecticide. Spinosad is highly active against Lepidoptera but is reported to be practically nontoxic to insect natural enemies. We assessed the impact of Spinosad in a granular maize-flour formulation on a selection of insect predators over periods of 2–14...

The effect of feed supplementation with natural α-tocopherol, rosemary, green tea, grape seed and tomato extracts on the oxidative stability of broiler meat was investigated by measuring lipid oxidation, protein oxidation and α-tocopherol content of breast muscle. Supplementation with α-tocopheryl acetate at a dietary concentration of 200 ppm was used as a control. The broilers were fed a diet ...

Maize (Zea mays L.) is among the most cultivated crops in world and can be affected by several diseases, especially those transmitted seeds. The study of alternatives to fungicides used for seed treatment has a promising field essential oils. Thus, this determined phytochemical profile ethanolic extract from Anadenanthera colubrina (Vell.) Brenan evaluate its antifungal activity on sanitary phy...

Abstract Experiments were performed investigating citronella (Cymbopogon winterianus Jowitt) as a repellent to honeybee Apis mellifera (L.) (Hymenoptera: Apidae) in Egypt, it was conducted laboratory the Department of Entomology and Pesticides Science, Faculty Agriculture, Cairo University, check long-term survival when exposed different nano insecticides alone or combined with at same examinat...

The present investigation was carried out during 2018–19 to evaluate the variation in seed dimension and most promising pre-treatments for accelerating germination of Spondias pinnata Linn. various pre-sowing treatments were Control (no treatment); soaking cold water 24 hours; 48 h; 72 100 ppm thiourea 200 400 800ppm 1000 KNO3 12 800 h h. experiment laid randomised block design with 13 control ...

This study proposes the steam reforming of a synthetic biogas stream containing 200 ppm H2S, carried out in non-commercial supported Pd–Au/Al2O3 membrane reactor (7–8 ?m selective layer thickness) at 823 K and 150 kPa over Rh(1%)/MgAl2O4/Al2O3 catalyst. system is able to recover almost 80% total hydrogen produced during reaction shows good resistance H2S contamination, as confirmed by stable me...