scholarly journals Sanitary measures considerably improve the management of resistant Norway rats on livestock farms

2022 ◽  
Author(s):  
Alexandra Esther ◽  
Sabine C Hansen ◽  
Nicole Klemann ◽  
Doreen Gabriel
Keyword(s):  
Livestock Farms ◽  
Norway Rats

Where do Norway rats live? Movement patterns and habitat selection in livestock farms in Argentina

2017 ◽  
Vol 44 (4) ◽  
pp. 324 ◽  
Author(s):  
Daniela P. Montes de Oca ◽  
Rosario Lovera ◽  
Regino Cavia
Keyword(s):  
Habitat Selection ◽  
Prevention And Control ◽  
Movement Patterns ◽  
Food Storage ◽  
Food Sources ◽  
Pest Species ◽  
Mammal Species ◽  
Livestock Farms ◽  
And Control ◽  
Norway Rats

Context The Norway rat (Rattus norvegicus) is recognised as one of the most harmful invasive mammal species in natural, urban and rural environments worldwide. Prevention and control of pest species in livestock farms is necessary to protect animal and human health, but control practices usually do not take into account the biology and ecology of the species to be controlled. The understanding of the biological requirements of Norway rats is necessary for the implementation of efficient management actions. Aims The aim of this research was to study movement patterns and habitat selection of Norway rats on livestock farms in central Argentina. We hypothesised that rats select specific areas within the farms according to the farm’s structure and to the availability of resources. Methods We conducted live-trapping of rats in a pig farm and a dairy farm, during each of four seasons over 1 year. Traps were active for three consecutive days at each trapping session. Movements and habitat selection were assessed by spool-and-line technique combined with environmental surveys and GIS tools. Key results We captured a total of 133 Norway rats and evaluated the movements of 47 individuals. The mean length travelled, registered for one night, was 84.28 ± 38.21 m. They did not travel great linear distances within the farms, but instead performed tortuous trajectories around specific sites. Norway rats selected sites containing food, water and refuges; and avoided travelling across areas with short vegetation. Sites containing food sources were most preferred. Conclusions Because food sources for rats were present ad libitum in farms, our findings strongly support the idea that management strategies of prevention and control of this species must include adequate rodent-proof food storage. Also, because rats are found close to livestock, improvement in preventing rats’ access to animal sheds is necessary to prevent contamination of livestock feeders with pathogens carried by rats. Implications The present study provides novel information about the ecology of Norway rats on livestock farms. We encourage farmers to follow our recommendations in order to improve rodent-control strategies.

Social Learning and Imitation: Food Stealing by Young Norway Rats

2003 ◽  
Author(s):  
Bennett G. Galef
Keyword(s):  
Social Learning ◽  
Food Stealing ◽  
Norway Rats

scholarly journals Rats show direct reciprocity when interacting with multiple partners

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Nina Kettler ◽  
Manon K. Schweinfurth ◽  
Michael Taborsky
Keyword(s):  
Time Delay ◽  
Decision Rule ◽  
Prisoner's Dilemma ◽  
Decision Rules ◽  
Prisoner’S Dilemma ◽  
Cognitive Demands ◽  
Multiple Partners ◽  
Norway Rats

AbstractDirect reciprocity, where individuals apply the decision rule ‘help someone who has helped you’, is believed to be rare in non-human animals due to its high cognitive demands. Especially if previous encounters with several partners need to be correctly remembered, animals might either stop reciprocating favours previously received from an individual, or switch to the simpler generalized reciprocity mechanism. Here we tested the decision rules Norway rats apply when interacting with multiple partners before being able to return received help. In a sequential prisoner’s dilemma situation, focal subjects encountered four different partners that were either helpful or not, on four consecutive days. On the fifth day, the focal subject was paired with one of the previous four partners and given the opportunity to provide it with food. The focal rats returned received help by closely matching the quantity of help their partner had previously provided, independently of the time delay between received and given help, and independently of the ultimate interaction preceding the test. This shows that direct reciprocity is not limited to dyadic situations in Norway rats, suggesting that cognitive demands involved in applying the required decision rules can be met by non-human animals even when they interact with multiple partners differing in helping propensity.

Changes in soil properties and plant biodiversity after 12 years of rehabilitating livestock farms in the Hyrcanian Forests

2021 ◽  
Author(s):  
Seyed Mohammad Hojjati ◽  
Asieh Darzi ◽  
Hamed Asadi ◽  
Mahya Tafazoli
Keyword(s):  
Soil Properties ◽  
Plant Biodiversity ◽  
Hyrcanian Forests ◽  
Livestock Farms ◽  
Changes In Soil Properties

Abundance of tigecycline resistance genes and association with antibiotic residues in Chinese livestock farms

2021 ◽  
Vol 409 ◽  
pp. 124921
Author(s):  
Yulin Fu ◽  
Yiqiang Chen ◽  
Dejun Liu ◽  
Dawei Yang ◽  
Zhihai Liu ◽  
...  
Keyword(s):  
Resistance Genes ◽  
Antibiotic Residues ◽  
Livestock Farms

Changes in Upper and Lower Airway Inflammation Following Administration of Mometasone Furoate in Allergen-Challenged Brown Norway Rats

2008 ◽  
Vol 121 (2) ◽  
pp. S205-S205
Author(s):  
J ANTHES ◽  
R MCLEOD ◽  
R CHAPMAN ◽  
Y JIA ◽  
J PHILLIPS
Keyword(s):  
Airway Inflammation ◽  
Mometasone Furoate ◽  
Brown Norway ◽  
Lower Airway ◽  
Norway Rats

Odor Assessments of Idaho Livestock Farms

2004 ◽  
Author(s):  
Ronald E. Sheffield ◽  
Matthew Thompson
Keyword(s):  
Livestock Farms

scholarly journals Aging leads to increased levels of protein O-linked N-acetylglucosamine in heart, aorta, brain and skeletal muscle in Brown-Norway rats

2008 ◽  
Vol 9 (3) ◽  
Author(s):  
Norbert Fülöp ◽  
Wenguang Feng ◽  
Dongqi Xing ◽  
Kai He ◽  
László G. Nőt ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Brown Norway ◽  
Norway Rats

Comparative Numbers of Fungiform and Foliate Papillae on Tongues of Domestic and Wild Norway Rats.

1946 ◽  
Vol 63 (2) ◽  
pp. 352-355 ◽  
Author(s):  
H. S. Fish ◽  
C. P. Richter
Keyword(s):  
Norway Rats

scholarly journals Social influences on food choices of Norway rats and mate choices of Japanese quail

Appetite ◽  
2002 ◽  
Vol 39 (2) ◽  
pp. 179-180 ◽  
Author(s):  
Bennett G. Galef
Keyword(s):  
Japanese Quail ◽  
Social Influences ◽  
Food Choices ◽  
Norway Rats
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