scholarly journals Sodium selenite as a new rodenticide

2014 ◽  
Vol 29 (3) ◽  
pp. 169-176
Author(s):  
Goran Jokic ◽  
Marina Vuksa ◽  
Suzana Djedovic ◽  
Tanja Scepovic ◽  
Vesna Jacevic ◽  
...  
Keyword(s):  
Vitamin D3 ◽  
Mus Musculus ◽  
Rattus Norvegicus ◽  
Chemical Compound ◽  
Sodium Selenite ◽  
Field Data ◽  
Research Data ◽  
Microtus Arvalis ◽  
Rodent Control ◽  
The Past

Rodents are the most destructive group of small mammalian pests considering the overall damage that they cause by feeding and other activities, or as vectors of many disease agents. In practice, chemical rodenticides have been the most widespread and most effective method of control of commensal (Mus musculus, Rattus norvegicus and R. rattus) and most harmful field rodent pests (Apodemus sylvaticus, A. agrarius and Microtus arvalis). After anticoagulant and vitamin D3 rodenticides, which were introduced worldwide in the 1980s, no other chemical compound has had a comparable role as a rodenticide in practice. In the past decade, commercial baits containing 0.1% sodium selenite have also been registered in Serbia in various formulations both for controlling rodents indoors and in the field. Data on sodium selenite as a rodenticide have been scarce. The present paper surveys research data reported so far, analyzing and drawing conclusions regarding the validity and feasibility of sodium selenite as a method of rodent control with reference to the available ecotoxicological data.

scholarly journals Prevalence of antibodies against leptospires in small mammals in relation to age, sex and season

2012 ◽  
Vol 81 (2) ◽  
pp. 97-102 ◽  
Author(s):  
František Treml ◽  
Jiří Nepeřený ◽  
Eva Jánová ◽  
Hana Banďouchová ◽  
Jiří Pikula
Keyword(s):  
Sex Differences ◽  
Czech Republic ◽  
Small Mammals ◽  
Mus Musculus ◽  
Rattus Norvegicus ◽  
Clethrionomys Glareolus ◽  
Adult Males ◽  
Microtus Arvalis ◽  
Males And Females ◽  
South Moravia

A total of 2,195 small mammals belonging to 8 species were captured in different districts of South Moravia, Czech Republic, and examined for antibodies against leptospires in the period from 2004 to 2008. Positive specimens amounting to 173 (9%) were found annually in five species of rodents such as Apodemus sp., Clethrionomys glareolus, Microtus arvalis, Mus musculus and Rattus norvegicus. The recognised leptospiral serotypes included L. grippotyphosa, L. bulgarica, L. sejroe and L. icterohaemorrhagiae/copenhageni. The highest prevalence of antibodies was against the L. grippotyphosa serotype (92.8%). Reactions with other serotypes of leptospires were exceptional. Reactions with L. bulgarica antigen were only due to coagglutination with L. grippotyphosa leptospires. The titres ranged from 100 to 12,800. However, lower values up to the titre of 800 predominated in 151 cases (83.4%). There were non-significant sex differences in seroprevalence with 8.1% and 7.6% prevalence in males and females, respectively. Marked differences were, however, found in seroprevalence of juveniles and adults with 3.3% and 10.2%, respectively. Adult males and females were seropositive in 10.9% and 9.5%, respectively; juveniles were seropositive only in 3.0% and 3.7%. The highest percentage of specimens (43.6%) was examined during July and August. The summer seroprevalence of 10.9% was higher than in spring and autumn. Our results revealed the persistence of both natural and synanthropic nidi of leptospirosis in the region under study and demonstrated epidemiological implications regarding health protection of animals and humans.

scholarly journals Introduction to the Special Issue on New Longitudinal Data for Retirement Analysis and Policy

2021 ◽  
pp. 1-5
Author(s):  
Marco Angrisani ◽  
Anya Samek ◽  
Arie Kapteyn
Keyword(s):  
Big Data ◽  
Academic Research ◽  
Cost Effective ◽  
Research Data ◽  
Data Sources ◽  
Special Issue ◽  
Administrative Records ◽  
The Past ◽  
Survey Questionnaires ◽  
Internet Panels

The number of data sources available for academic research on retirement economics and policy has increased rapidly in the past two decades. Data quality and comparability across studies have also improved considerably, with survey questionnaires progressively converging towards common ways of eliciting the same measurable concepts. Probability-based Internet panels have become a more accepted and recognized tool to obtain research data, allowing for fast, flexible, and cost-effective data collection compared to more traditional modes such as in-person and phone interviews. In an era of big data, academic research has also increasingly been able to access administrative records (e.g., Kostøl and Mogstad, 2014; Cesarini et al., 2016), private-sector financial records (e.g., Gelman et al., 2014), and administrative data married with surveys (Ameriks et al., 2020), to answer questions that could not be successfully tackled otherwise.

scholarly journals Pneumocystis carinii: its incidence in rodents and enhancement of the infection by corticosteroids

1973 ◽  
Vol 71 (1-2) ◽  
pp. 87-93 ◽  
Author(s):  
Helly A. Lage ◽  
Suelena A. Lage
Keyword(s):  
Rattus Norvegicus ◽  
Guinea Pigs ◽  
Pneumocystis Carinii ◽  
Albino Rats ◽  
The Past ◽  
Albino Mice

A survey was made on the incidence of Pneumocystis carinii in 361 rodents including sewer rats, albino rats, albino mice, guinea-pigs and rabbits. P. carinii was found in 4 of the 215 Rattus norvegicus examined (1,8%). These results accord with recent observations but disagree with investigations made by the researchers who first studied this parasite in the past when high indexes of infection were found. However, in 20 albino rats treated with corticosteroids (betamethazone) we found 8 positive (40%) and in 20 albino mice treated by the same way, 9 were positive for P. carinii (45%). These results confirm the opportunistic character of P. carinii in rodents already well demonstrated in man.

scholarly journals Glodavci u skladištima poljoprivrednih proizvoda – štetnost i suzbijanje

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

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.

scholarly journals Small mammals of the Kaluga region – reservoirs of dangerous zoonotic diseases

2020 ◽  
pp. 291-294
Author(s):  
Nikanorova ◽  
Kozlov
Keyword(s):  
Small Mammals ◽  
Mus Musculus ◽  
Rattus Norvegicus ◽  
Zoonotic Diseases ◽  
Myodes Glareolus ◽  
Field Mouse ◽  
Vector Borne ◽  
Kaluga Region ◽  
The City ◽  
Small Forest

The article considers the issues of carriage by small mammals of dangerous zoonotic diseases: leptospirosis, tularemia, hantaviruses. Data on the detection of antigens to pathogens in the districts of the Kaluga region are presented. As you know, small mammals are the main link in maintaining zoonotic natural focal diseases. The larval phases of ixodic ticks, mosquitoes and other parasitic arthropods prefer to feed on the blood of mouse rodents, which contributes to the spread of vector-borne infections and infestations. The following species of mouse rodents are found in the Kaluga Region: small forest mouse (Apodemus uralensis), gray vole, red vole (Myodes glareolus), field mouse (Apodemus agrarius), gray rat (Rattus norvegicus), and house mouse (Mus musculus). In natural biotopes, field species prevail in number: field mouse, gray vole, red vole. In the Kaluga region, antigens for tularemia, hantaviruses, and leptospirosis were found in small mammals in 4.9–9.4% of the studied animals on average per year. Of particular concern are the city of Kaluga, Borovsky, Babyninsky, Yukhnovsky, Ulyanovsk, Medynsky, Maloyaroslavetsky, Meshchovsky, Peremyshlsky, Kozelsky, Dzerzhinsky and Ulyanovsk districts. The data obtained indicate the stationarity of these diseases in the territory of the Kaluga region.

The past surveyed tomorrow

Antiquity ◽  
2002 ◽  
Vol 76 (293) ◽  
pp. 855-862 ◽  
Author(s):  
J.B. Stevenson
Keyword(s):  
Information System ◽  
Field Data ◽  
Rapid Change ◽  
Data Capture ◽  
Geographical Information ◽  
Royal Commission ◽  
The Past ◽  
Individual Site ◽  
Historical Monuments ◽  
The Government

The last 25 years has been a period of rapid change in the approach to archaeological fieldwork in Britain and this has been reflected in the development of survey within the Royal Commission on the Ancient & Historical Monuments of Scotland (RCAHMS), the government financed body responsible for maintaining the national record of archaeology and architecture. The monolithic county-based inventory approach of RCAHMS' first 60 years has been replaced by a more broadly-based archaeological strategy founded on programmes of work that range from national overviews and regional surveys to individual site plans. Archaeological mapping has superseded monument planning as the key field objective, and all survey, whether terrestrial, aerial or desk-based, is underpinned by the RCAHMS Geographical Information System (GIs). The radical changes in field data-capture have been mirrored by parallel developments in making that data accessible once it has been collected.

The Relationship Between Organizational Culture and Organizational Commitment

2021 ◽  
pp. 308-329
Author(s):  
Mine Halis ◽  
Muhsin Halis
Keyword(s):  
Organizational Culture ◽  
Organizational Commitment ◽  
Organization Structure ◽  
Research Data ◽  
The Past ◽  
The Relationship

Organizational culture fulfills the most important functions in order to reach organization goals. At the same time, the existence of the relationship between organizational culture and organizational commitment has been determined by many academic studies in the past. With this study, suggestions were presented to the organizers of the health sectors which should have strong organization structure. In the introduction part of the chapter, there is a brief description of what the purpose of working is, how it is to be done, and in which context it will be completed. Organizational culture in the first part and organizational commitment in the second part are discussed literally. Then the findings obtained based on the research data were included, and the study with the conclusion and suggestion was completed.

Small-mammal assemblages in piggeries in a developing country: relationships with management practices and habitat complexity

2020 ◽  
Vol 47 (6) ◽  
pp. 485
Author(s):  
Daniela Paula Montes de Oca ◽  
Martín Neyen Lammel ◽  
Regino Cavia
Keyword(s):  
Small Mammals ◽  
Small Mammal ◽  
Rattus Norvegicus ◽  
Habitat Complexity ◽  
Management Practices ◽  
Production Systems ◽  
Rodent Control ◽  
Environmental Characteristics ◽  
Mammal Assemblages ◽  
Didelphis Albiventris

Abstract ContextPig production is increasing in developing countries and is increasing the coexistence of different production systems regarding management practices. Small mammals can cause major economic and sanitary problems on pig farms. The interactions among small mammals, production practices and habitat complexity have been sparsely studied. AimsThe aim was to compare small-mammal assemblages on extensive and intensive pig-production systems, and to analyse the relationship with environmental characteristics and management practices. MethodsSeasonal live-trapping of small mammals within 18 farms (under intensive or extensive management) was performed in central Argentina, simultaneously with a survey of environmental and management practices. Multiple regression analyses were performed to assess the relation between infestation levels and environmental characteristics. Key results In total, 472 small mammals were captured, including the exotic murids Rattus norvegicus, R. rattus and Mus musculus, three native sigmodontines, namely, Akodon azarae, Oligoryzomys flavescens and Oxymycterus rufus, and two native marsupials, namely, Didelphis albiventris and Lutreolina crassicaudata. The location of waste deposits, the density of cats, the frequency of rodent control and the way pig food was stored influenced wild small-mammal abundance; exotic rodent species were lower when the density of cats increased. Rattus norvegicus was more abundant where rodent control was not frequent or null, contrary to M. musculus. Both species were more abundant in food and pig sheds, whereas native species were associated with vegetated areas outside of sheds. Also, A. azarae was associated with the density of pigs. Didelphis albiventris was more abundant on extensive farms, whereas L. crassicaudata was captured on intensive farms. Conclusions Small-mammal abundance did not respond to the type of production system per se, but exotic species abundance was influenced by management decisions. The most important human behaviours related to exotic rodent infestation were the possession of cats, the frequency of rodent control and the way waste and pig feed were managed. Implications Our findings highlighted the need for integrated studies on factors influencing the dynamics of rodent populations in commercial piggery systems, for the development of effective pest management. Management recommendations need to assess environmental complexity and human behaviour as important moderators of the population dynamics of small mammal species in and around piggeries.

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