نتایج جستجو برای: rattus ratus

تعداد نتایج: 3702  

Journal: :FASEB journal : official publication of the Federation of American Societies for Experimental Biology 2005
Imad Shams Eviatar Nevo Aaron Avivi

Blind subterranean mole rats of the Spalax ehrenbergi superspecies in Israel have evolved multiple adaptive strategies to face underground hypoxia. Hypoxia-inducible factor-1alpha (HIF-1alpha) and erythropoietin (Epo) are key factors in the development of normal erythropoiesis and angiogenesis. Here, we demonstrate via real-time polymerase chain reaction (PCR) quantification that Spalax fetal l...

2011
Arijana Barun Daniel Simberloff Nikola Tvrtković Michel Pascal

The small Indian mongoose (Herpestes auropunctatus) is one of the world’s 100 worst invasive species (IUCN 2000). It has negative impacts on several small mammals on islands where it was introduced. We assess the abundance of small mammal populations and the activity time of introduced ship rats (Rattus rattus) on three mongoose-infested and three mongoose-free islands in the Adriatic Sea, Croa...

سحابی , زهره, شریف , مهدی, صداقت , محمدمهدی, غلامی , شیرزاد, متولی حقی , فرزاد, موبدی , ایرج, نجف پور , علی اصغر,

Background and Purpose : Çonsidering the role of rodents ectoparasites in transmission of different diseases such as, plaque, relapsing fever, typhus mureium, etc. Â study was done in different areas of mazandaran province in order to identify rodents ectoparasites. Materials and methods : This was a descriptive study done on the rodents hunted from different areas of Sari, Behshar, Gaemsh...

Journal: :The Journal of parasitology 2002
M Adela Valero Miroslava Panova Ana M Comes Roger Fons Santiago Mas-Coma

Using samples collected on the island of Corsica, a comparative study was done of the morphometry of Fasciola hepatica eggs shed by cattle and by naturally and experimentally infected murid rodents (wild Mus musculus and Rattus rattus and Rattus norvegicus Wistar laboratory strain). Eggs shed by murids are smaller in size than those shed by naturally infected cattle. A second study analyzed the...

Journal: :The Southeast Asian journal of tropical medicine and public health 1997
C Namue C Wongsawad

An investigation of helminths in the Norway (brown) rat, Rattus norvegicus, and roof rat, Rattus rattus, from Chiang Mai Moat during May to August 1995, was done. Thirty-three out of thirty-eight trapped rats were infected (86.84%); 16 R. norvegicus (100%) and 17/22 R. rattus (77.27%). The rat was infected with 10 helminth species: 4 trematodes, Centrocestus sp (2.63%), Echinostoma ilocanum (10...

2014
Neena Singla Swati Challana

The aim of study was to investigate the toxic effect of triptolide fed in bait on reproduction of male house rat, Rattus rattus. Feeding of cereal based bait containing 0.2% triptolide to male R. rattus for 5 days in no-choice feeding test, leading to mean daily ingestion of 20.45 mg/kg bw of triptolide, was found effective in significantly (P ≤ 0.05) reducing sperm motility and viability in ca...

Journal: :The Southeast Asian journal of tropical medicine and public health 2014
Xiaokang Sun Yuling Shi Ping Huang Yuanling Deng De Wu Lijun Liang Jinyan Lin

Hemorrhagic fever with renal syndrome (HFRS) is a zoonotic disease, which threatens public health and its incidence has increased sharply up to the present time in southern China. A survey of HFRS including in both the natural hosts and humans conducted in Qingyuan, southern China, during 2011-2013 revealed that one, two and seven confirmed cases of HFRS occurred in 2011, 2012 and 2013, respect...

Journal: :Journal of the Egyptian Society of Parasitology 2016
Salwa M A Dahesh Micheal W Mikhail

A new public health problem arises from animal trypanosomes that afflict human by a disease called atypical human trypanosomiasis. Although humans have an innate protection against most Trypanosoma species, nineteen cases of atypical human trypanosomiasis caused by the animal trypanosome as T. b. brucei, T. vivax, T. congolense, T. evansi and T. lewisi have been recorded. Some of theserecorded ...

Journal: :Genes & genetic systems 2014
Shumpei P Yasuda Chandika D Gamage Nobuo Koizumi Sanae Nishio Rie Isozumi Kenta Shimizu Takaaki Koma Takako Amada Hitoshi Suzuki Kumiko Yoshimatsu Jiro Arikawa

We examined genetic variation in black rats (the Rattus rattus complex) from Kandy District, Sri Lanka using mitochondrial cytochrome b (cytb, 1140 bp) and nuclear melanocortin 1 receptor (Mc1r, 954 bp) gene sequences together with database sequences. We confirmed the existence of two divergent mitochondrial lineages in Sri Lankan black rats, with genetic distance of 2.2% and estimated divergen...

Journal: :Genetics 1983
P R Baverstock M Adams L R Maxson T H Yosida

The black rat, Rattus rattus, consists of five karyotypic forms-2n = 42 (high C-banding); 2n = 42 (low C-banding); 2n = 40; 2n = 38; 2n = 42 Mauritius. Here, we use isozyme electrophoresis and microcomplement fixation to elucidate the genetic distance and phylogenetic relationship among each of the various karyotypic forms of R. rattus and R. norvegicus . The results show that (1) the 2n = 42 M...

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