Identification of polypeptide chains in some rodents—I. Rattus norvegicus, Rattus rattus, Psammomys obesus

Author(s):  
R. Brdička ◽  
S. Carta ◽  
G. Vivaldi ◽  
E. Tentori
2018 ◽  
pp. 47-55 ◽  
Author(s):  
Hakim Drouai ◽  
Mohammed Belhamra ◽  
Fateh Mimeche

Nuestro estudio muestra un inventario de roedores del noroeste de Argelia. Tas especies se capturaron en dos regiones: Taouziant (Montañas Aurès ) y Bouchagroune (oasis de Ziban). El periodo de muestreo duró diez mees en cada lugar: en Taouziant de febrero a nobiembre de 2014 y en Bouchagroune de septiembre de 2013 a junio de 2014. El método de trampeo en línea fue llevado a cabo mediante 40 jaulas-trampas instaladas en las regiones de estudio. Se capturaron ocho especies, que pertenecen a tres subfamilias y seis géneros. Tres especies se distribuyen en las dos regiones Rattus rattus, Mus musculus y Gerbillus amoenus. Tres especies se capturaron en los campos de cereal de Taouziant ( Rattus norvegicus, Meriones shawii y Jaculus jaculus) y dos especies en el palmeral de Bouchagroune (Psammomys obesus y Gerbillus gerbillus) Our study presents an inventory of rodents in Northeast of Algeria. The species were captured at two regions: Taouziant (Aurès Montain) and Bouchagroune (Ziban oasis). The sampling period takes ten months at each site: in Taouziant between February to November 2014 and in Bouchagroune, from September 2013 to June 2014. The method of trapping online was performed using 40 wire traps installed at the studied regions. Eight species were captured. They belong to three subfamilies and six genera. Three species occur in the two regions: Rattus rattus, Mus musculus and Gerbillus amoenus. Three species were captured in Taouziant cereal fields ( Rattus norvegicus, Meriones shawii and Jaculus jaculus) and two species were found in Bouchagroune palm grove (Psammomys obesus and Gerbillus gerbillus)


2021 ◽  
Vol 44 (6) ◽  
pp. 42-48
Author(s):  
Dinka Grubišić ◽  
Ivan Juran ◽  
Mirjana Brmež ◽  
Maja Šurlog ◽  
Viktorija Sever ◽  
...  

Glodavci su važni štetnici uskladištenih poljoprivrednih proizvoda. Uz zadovoljenje osnovnih prehrambenih potreba, štetne vrste u skladištima nalaze povoljne uvjete za razvoj i razmnožavanje te zaštitu od prirodnih neprijatelja. Najštetnije vrste glodavaca u skladištima Republike Hrvatske jesu štakori vrsta Rattus norvegicus i Rattus rattus te domaći miš Mus musculus. Osim što se hrane uskladištenim proizvodima, rasipaju ih, onečišćuju urinom, izmetom, dlakom i slinom, navedene vrste rezervoari su zoonozama koje utječu na zdravlje ljudi, te domaćih i divljih životinja. U Republici Hrvatskoj u populacijama sitnih glodavaca dokazani su uzročnici Lajmske borelioza, trihineloze, leptospiroze, Q groznice i hemoragijske vrućice s bubrežnim sindromom. Utvrđene su i višestruke infekcije glodavaca uzročnicima zoonoza. Redovito praćenje brojnosti glodavaca važno je u svrhu pravovremenog suzbijanja te smanjenja materijalnih gubitaka, ali i u svrhu sprječavanja pojave epidemija zoonoza. Uz preventivne mjere koje podrazumijevaju održavanje higijene prostora te održavanje infrastrukture, čime sprječavamo privlačenje i nastanjivanje glodavaca u skladištima, provodi se i kontinuirana deratizacija koja uključuje primjenu mehaničkih, fizikalnih i kemijskih mjera zaštite.


2002 ◽  
Vol 55 (3) ◽  
pp. 55-3 ◽  
Author(s):  
Stefan Rothenburg ◽  
Maike Eiben ◽  
Friedrich Koch-Nolte ◽  
Friedrich Haag

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
J. Saki ◽  
S. Khademvatan

Toxoplasma gondiiis obligate coccidian zoonotic parasite. Felidae family is definitive and wide ranges of warm-blooded vertebrates are intermediate hosts for the parasite. Rodents are measured as an important source ofT. gondiiinfection for the definitive host. Thus, this study aimed to investigateToxoplasminfection in rodents of Ahvaz district, southwest of Iran. A total of 100 rodents (73Rattus norvegicus, 21Rattus rattus, and 6Mus musculus) were collected and studied by GRA6PCR and mouse bioassay. The finding indicated that 6 out of 100 (6%) and 2 out of 100 (2%) samples were positive by PCR and mouse bioassay, respectively. The results show notable chronic infection in the rodent and potential transmission of the infection among animal and men in the region. Accordingly, this study recommended investigating of theT. gondiiinfection in definitive and other intermediate hosts in other points of Khuzestan province, Southwest, Iran.


2003 ◽  
Vol 30 (2) ◽  
pp. 187 ◽  
Author(s):  
Sophie Rouys ◽  
Jörn Theuerkauf

We studied the distribution of introduced mammals in six nature reserves of New Caledonia's southern province. Polynesian rats (Rattus exulans) were common in both rainforest and shrubland but their abundance decreased with increasing altitude. Ship rats (Rattus rattus) were abundant in rainforest but less numerous in shrubland and their abundance did not increase with altitude. We found no Norway rats (Rattus norvegicus) or house mice (Mus musculus domesticus) in reserves. Feral pigs (Sus scrofa) used mainly rainforest but also shrubland and preferred foraging in valleys with alluvial soils. Rusa deer (Cervus timorensis) selected shrubland over rainforest. Feral cats (Felis catus) were widely distributed in the reserves, whereas dogs (Canis familiaris) strayed into reserves but did not form feral populations.


2002 ◽  
Vol 7 (2) ◽  
Author(s):  
M. A. SILVA ◽  
L. E. KOZICKI ◽  
P. R. DALSENTER

Na presente pesquisa objetivou-se estudar os efeitos do gossipol (C30H30O8) na gestação e consequente lactação, de 40 ratas com idade média de 120 dias e peso variando entre 200 e 250 gramas, oriundas do Biotério Central da Universidade Federal do Paraná. Os animais foram acompanhados diariamente até a confirmação da cobertura através de esfregaço de lavado vaginal (esfregaço positivo - presença de espermatozóides) e separados em quatro grupos de dez animais: G I - controle, G II – gossipol 20 mg.kg-1, G III – gossipol 40 mg.kg-1, G IV - gossipol 80 mg.kg-1 respectivamente de acordo com a concentração de gossipol presente na suspensão utilizada (gossipol 20 mg.mL-1, gossipol 40 mg.mL-1 e gossipol 80 mg.mL-1). O gossipol ácido acético (GAA 97,8 % de pureza) diluído em óleo vegetal de canola (veículo) foi administrado oralmente para todos os animais no volume de 1 mL de suspensão para cada quilo de peso vivo. A administração da droga iniciou-se no 5o dia de gestação estendendo-se até o 20º. O peso das ratas foi aferido diariamente, do dia da cobertura até o dia do parto, a fim de se observar possíveis efeitos tóxicos durante a gestação. Durante a lactação as ratas e os filhotes eram pesados a cada 3 dias para acompanhar o desenvolvimento dos filhotes e recuperação materna. No desmame (21o dia pós-parto) todas as fêmeas foram sacrificadas para a observação dos pontos uterinos de implantação, comparando-se o número de fetos nascidos com o número de fetos gerados. Durante o experimento sete ratas do grupo G IV e uma do G III morreram, além de abortos e sinais de canibalismo na parturição. Observou-se como sinais de toxicidade: diarréia, inapetência, pelos eriçados, taquipnéa e perda de peso. Nenhum filhote apresentou alterações morfológicas macroscópicas. Concluiu-se que o gossipol (GAA) causou intoxicação grave nos animais que receberam maior dosagem, bem como interferiu no ganho de peso das ratas durante a gestação, peso ao nascimento e peso à desmama dos filhotes. Contudo não interferiu no processo de manutenção da gestação e no número de filhotes nascidos quando administrado entre o 5o e 20º dia de gestação. Gossypol toxicity in pregnant and nursing rats – Rattus rattus norvegicus Abstract In order to study the effects of gossypol (C30H30O8) in pregnancy and lactation, 40 female rats (120 days old) weighing between 200 and 250 grams, were used in this experiment. The animals were divided in four different group GI (n = 10), GII (n = 10), GIII (n = 10) and GIV (n = 10). The daily oral dose administered by gavage to the animals of each group was of 0, 20, 40 and 80 mg.kg-1 respectively of gossypol dissolved in canole oil. All rats were weighed daily from the day of copulation (0 day) to the day of parturition, for evaluation of the toxic effects during pregnancy. All rats and their offspring were weighed on days 3, 6, 9, 12, 15, 18 and 21 (day of weaning) of lactation. At the day of weaning, all rats were killed in order to observe the number of uterine implantation sites. Eight rats (1 from GIII group and 7 from GIV) died during the period of drug administration besides the occurrence of abortions and cannibalism at the parturition. Clinical symptoms of toxicity were diarrhea, inappetency, bristly hair, tachypnea, loss of weight. Neither pup displayed either macroscopic or morphological alterations. Heavy poisoning has been induced in rats that received higher doses of gossypol acetate as well as a dose-dependent decrease in body weight gain in pregnant rats, lesser weight at birth and at weaning. Nevertheless, gossypol did not interfere in the maintenance of pregnancy and in the number of pups born when administered from day 5 through day 20 of pregnancy.


2007 ◽  
Vol 73 (8) ◽  
pp. 2624-2630 ◽  
Author(s):  
Eiji Yokoyama ◽  
Soichi Maruyama ◽  
Hidenori Kabeya ◽  
Siro Hara ◽  
Shin Sata ◽  
...  

ABSTRACT Salmonella enterica serovar Typhimurium was isolated from the intestinal contents of Rattus rattus and Rattus norvegicus house rats captured at two buildings, designated buildings J and YS, in Yokohama City, Japan. From October 1997 to September 1998, 52 of 339 (15.3%) house rats were found to carry Salmonella serovar Typhimurium definitive phage type 104 (DT104). In building J, 26 of 161 (16.1%) house rats carried DT104 over the 1-year study period, compared to 26 of 178 (14.6%) rats in building YS. The isolation rates of DT104 from R. rattus and R. norvegicus were similar in the two buildings. Most DT104 strains from building J (24 of 26) showed resistance to ampicillin, chloramphenicol, streptomycin, sulfisoxazole, and tetracycline and contained both the 1.0- and 1.2-kbp integrons, carrying genes pse1, pasppflo-like, aadA2, sulI, and tet(G). All DT104 strains from building YS were resistant to ampicillin and sulfisoxazole, and had the 1.2-kbp integron carrying pse1 and sulI. Cluster analysis of pulsed-field gel electrophoresis patterns of BlnI-digested DT104 DNAs showed that 22 of 26 DT104 strains from building J and 24 of 26 strains from building YS could be grouped into separate clusters each specific for the building origin. These results indicated that DT104 strains were prevalent in house rat colonies in each building and suggest that house rats may play an important role in the epidemiology of DT104.


2017 ◽  
Vol 92 (5) ◽  
pp. 549-553 ◽  
Author(s):  
B. Fitte ◽  
M.R. Robles ◽  
A. Dellarupe ◽  
J.M. Unzaga ◽  
G.T. Navone

AbstractThe aim of this survey was to study two Hymenolepididae species in urban rodents, Rattus rattus and Rattus norvegicus, and to analyse factors that favour their presence in the environment and pose a sanitary risk. Hymenolepis diminuta and Rodentolepis nana were found in R. rattus and R. norvegicus in different proportions. Values of prevalence, mean abundance and mean intensity were recorded, and new morphometric characters were described, adding to previously known information. No significant differences were found. However, the results revealed that there is a tendency for these parasites to develop in areas with deficient socio-structural conditions and in water bodies. This study thereby shows that certain areas on the periphery of the Gran La Plata favour the existence of rodents, which act as sentinels of zoonotic diseases, and stresses the need to take action to minimize them in order to avoid putting human and animal health at risk.


Sign in / Sign up

Export Citation Format

Share Document