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Toxicological studies for some agricultural waste extracts on mosquito larvae and experimental animals

Asian Pacific Journal of Tropical Biomedicine 2012年第7期2卷 558-563页

作者： Somia El-Maghraby Galal A Nawwar reda fa bakr Nadia Helmy Omnia MHM Kamel Applied organic chemistry Department National Research Centre Department of Entomology Faculty of ScienceAin-Shams University

Objective:To evaluate some agricultural waste extracts as insecticide and their effects on enzyme activities in liver and kidney of male ***:The insecticidal activity of five tested compounds(one crude extract and 4 waste compounds) was bioassay against the 3rd instars of the Culex pipiens(***) larvae in the *** LC_(50) values of eucalyptol,apricot *** bran,corn,black liquor and white liquor are 91.45.1166.1,1203.3.21449.65.4025.78 and 6343.18 ppm,*** of the compounds for the subsequent studies was not only dependent on LC_(50) values but also on the persistence of these wastes products on large ***:White and black liquor did not produce any gross effect at 200 mg/Kg body *** apparent toxic symptoms were observed in tested animals during the whole period of the experimenl which run out for 14 *** statistically significance was observed in the enzyme choliuesterase activity,the activities of liver enzymes and kidney function in treated mice with black and while ***,no and slighl inhibition was observed after the 2weeks ol treatment period with deltamethrin and lenilrothion reached to about 24%in plasma cholinesterase enzyme *** increase in the activities ol liver enzymes and kidney function in treated mice with deltamethrin and ***:Black liquor can be used efficiently In control *** larvae under laboratory *** problem caused by rice straw can be solved by converting the waste material to beneficial natural selective insecticide.

关键词： Agricultural wastes Insecticides Mosquito Biological studies

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Studying the effect of formic acid and potassium diformate on performance,immunity and gut health of broiler chickens

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Animal Nutrition 2016年第4期2卷 296-302页

作者： Naela M.Ragaa reda M.S.Korany Nutrition and Clinical Nutrition Dept. Fac.Vet.Med. Cairo University Pathology Dept. Fac.Vet.Med. Cairo University

Our trial was conducted to study the effects of formic acid(fa) and potassium di-formate(KDF) in broiler ration on performance, carcass traits, blood biochemical, intestinal microbial load, histological picture of intestine and immune parameters of broilers. In this study 360 one-day-old broiler chicks were divided to 3 groups with 3 replicates of 40 chicks each. The trial continued for 35 days. The control group was fed only basal diet(G1). Group 2(G2) were fed basal diet supplemented with fa(5 g/kg diet), and group 3(G3) received basal diet supplemented with KDF(5 g/kg diet). The results showed that both fa and KDF significantly increased body weight gain(BWG), dressing percentage of broilers and significantly decreased feed conversion ratio(FCR)(P fa or KDF in broiler feeds have significant effects on performance, immune parameters, and gut health without having any significant effects on blood biochemical. However, KDF is more effective than fa as little amount of fa reaches the small intestine due to metabolism and absorption, whereas KDF permits a proportion of fa to pass through the fore-gut intact and enter the small intestinal tract. In addition, fa has a strong odor and corrosiveness to gastrointestinal tract which limits its use.

关键词： Acidifiers Broiler Growth parameters Gut health

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