scholarly journals Finding ofNeospora caninumin the wild brown rat (Rattus norvegicus)

2004 ◽  
Vol 35 (3) ◽  
pp. 283-290 ◽  
Author(s):  
Chiu-Chen Huang ◽  
Chen-Hsiung Yang ◽  
Yuko Watanabe ◽  
Yung-Kung Liao ◽  
Hong-Kean Ooi
Keyword(s):  
Rattus Norvegicus ◽  
Brown Rat

scholarly journals Damage to wheat by enclosed populations of Rattus norvegicus

1951 ◽  
Vol 49 (1) ◽  
pp. 22-25 ◽  
Author(s):  
S. A. Barnett
Keyword(s):  
Rattus Norvegicus ◽  
Monetary Loss ◽  
Brown Rat ◽  
The Common

Small enclosed populations of the common brown rat (ten to twenty-six rats), each with access to one ton of sacked wheat for 12–28 weeks, caused a loss in weight of 4·4% of the wheat. 70·4% of the wheat was fouled and had to be cleaned before use. The main monetary loss was due to damage to sacks. Total monetary loss was 18·23% of the original value of the wheat and sacks.

scholarly journals Global population divergence and admixture of the brown rat ( Rattus norvegicus )

2016 ◽  
Vol 283 (1841) ◽  
pp. 20161762 ◽  
Author(s):  
Emily E. Puckett ◽  
Jane Park ◽  
Matthew Combs ◽  
Michael J. Blum ◽  
Juliet E. Bryant ◽  
...  
Keyword(s):  
Population Structure ◽  
Rattus Norvegicus ◽  
Population Divergence ◽  
Western North America ◽  
Westward Expansion ◽  
Fine Grained ◽  
Worldwide Distribution ◽  
Brown Rat ◽  
Commensal Rodents ◽  
Global Population

Native to China and Mongolia, the brown rat ( Rattus norvegicus ) now enjoys a worldwide distribution. While black rats and the house mouse tracked the regional development of human agricultural settlements, brown rats did not appear in Europe until the 1500s, suggesting their range expansion was a response to relatively recent increases in global trade. We inferred the global phylogeography of brown rats using 32 k SNPs, and detected 13 evolutionary clusters within five expansion routes. One cluster arose following a southward expansion into Southeast Asia. Three additional clusters arose from two independent eastward expansions: one expansion from Russia to the Aleutian Archipelago, and a second to western North America. Westward expansion resulted in the colonization of Europe from which subsequent rapid colonization of Africa, the Americas and Australasia occurred, and multiple evolutionary clusters were detected. An astonishing degree of fine-grained clustering between and within sampling sites underscored the extent to which urban heterogeneity shaped genetic structure of commensal rodents. Surprisingly, few individuals were recent migrants, suggesting that recruitment into established populations is limited. Understanding the global population structure of R. norvegicus offers novel perspectives on the forces driving the spread of zoonotic disease, and aids in development of rat eradication programmes.

The molecular identification of Calodium hepaticum in the wild brown rat (Rattus norvegicus) in Poland

2017 ◽  
Vol 62 (4) ◽  
Author(s):  
Katarzyna Buńkowska-Gawlik ◽  
Agnieszka Perec-Matysiak ◽  
Klaudia Burzyńska ◽  
Joanna Hildebrand
Keyword(s):  
Molecular Identification ◽  
Rattus Norvegicus ◽  
Parasitic Nematode ◽  
Mammal Species ◽  
First Finding ◽  
Calodium Hepaticum ◽  
Brown Rat ◽  
In The Wild

Abstractis a parasitic nematode found primarily in rodents but known to infect numerous other mammal species, and causing in humans the hepatic calodiasis. Herein, we present the first finding of

scholarly journals Control of brown rat (Rattus norvegicus) on a dairy farm in Serbia

2012 ◽  
Vol 28 (3) ◽  
pp. 623-633
Author(s):  
S. Djedovic ◽  
M. Vuksa ◽  
M.M. Petrovic ◽  
J. Bojkovski ◽  
I. Pavlovic ◽  
...  
Keyword(s):  
Rattus Norvegicus ◽  
Sodium Selenite ◽  
Dairy Farm ◽  
Environmentally Friendly ◽  
Economic Damage ◽  
First Year ◽  
High Efficacy ◽  
The Third ◽  
Brown Rat ◽  
Active Substances

Rattus norvegicus is a synanthropic species living almost exclusively around facilities for keeping domestic animals. This three-year research focused on options for reducing economic damage caused by this rodent species in stables for heavy milking cows by testing preparations with active substances of various origin. It involved an environmentally friendly product based on sodium selenite 0.1%, a cholecalciferol-based natural product 0.75%, as well as anticoagulant rodenticides containing the active substances bromadiolone 0.005% and brodifacoum 0.005%. These preparations were formulated as granules, plate bait or grain bait. The environmentally friendly sodium selenite product achieved 76.2% efficacy in the first year of research, 70% in the second, and 67.5% in the third. The synthetic products based on bromadiolone and brodifacoum demonstrated high efficacy in all of the three experimental years and in all three formulations. The cholecalciferol rodenticide had 71.4% efficacy in the first year, 68% in the second, and 67.7% in the third. The data show that the environmentally safe product had a lower efficacy due to high rodent abundance and inadequate epidemiological conditions existing on the farm of heavy milking cows, while the bromadiolone and brodifacoum-based products achieved high efficacy.

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