Dynamics of <Emphasis Type="Italic">Mycoplasma hyopneumoniae</Emphasis> seroconversion and infection in pigs in the three main production systems     

Enrico Giacomini  Nicola Ferrari  Alessandra Pitozzi  Michela Remistani  Daniele Giardiello  Dominiek Maes  Giovanni Loris Alborali 《Veterinary research communications》2016,40(2):81-88

In this study, we investigated the dynamics of Mycoplasma hyopneumoniae infections in 66 pig farms, with different production systems (one-, two-, and three-site systems), and considered different risk factors. Serological assay was used to detect serum antibodies against M. hyopneumoniae and real time polymerase chain reaction (RT–PCR) was performed to detect M. hyopneumoniae DNA in tracheobronchial swabs. Results demonstrated that M. hyopneumoniae infection status was predominantly influenced by the age of the animals and the type of production system. Infection rates were higher in older animals and the prevalence was higher in the one- and two-site systems than in the three-site systems. Dynamics of infection by RT-PCR showed that earlier M. hyopneumoniae infection on one-site farms occurs earlier, while on two- and three-site farms occurs later but spreads faster, suggesting that contact between animals of different age favors the transmission.  相似文献   

Respiratory disease associated with bovine coronavirus infection in cattle herds in Southern Italy.     

Nicola Decaro  Marco Campolo  Costantina Desario  Francesco Cirone  Maria D'Abramo  Eleonora Lorusso  Grazia Greco  Viviana Mari  Maria Loredana Colaianni  Gabriella Elia  Vito Martella  Canio Buonavoglia 《Journal of veterinary diagnostic investigation》2008,20(1):28-32

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Urocortinergic system in the epididymis of the normal and cryptorchid dogs     

Caterina Squillacioti  Alessandra Pelagalli  Adriana De Luca  Giovanna Liguori  Sabrina Ali  Nicola Mirabella 《Reproduction in domestic animals》2019,54(7):956-963

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Impact of systemic antimicrobial therapy on mucosal staphylococci in a population of dogs in Northwest England          下载免费PDF全文

Vanessa M. Schmidt  Gina Pinchbeck  Tim Nuttall  Steve Shaw  K. Marie McIntyre  Neil McEwan  Susan Dawson  Nicola J. Williams 《Veterinary dermatology》2018,29(3):192-e70

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Frequency of shedding of respiratory pathogens in horses recently imported to the United States          下载免费PDF全文

Fauna Leah Smith  Johanna L. Watson  Sharon J. Spier  Isabelle Kilcoyne  Samantha Mapes  Claudia Sonder  Nicola Pusterla 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2018,32(4):1436-1441

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Retrospective evaluation of intravenous catheterization in client-owned lizards at a veterinary teaching hospital: 21 cases (2018–2021)     

Marina Liles DVM  João Brandão LMV  MS  DECZM  Nicola Di Girolamo DVM  PhD  DECZM  DACZM  DACVPM 《Journal of Veterinary Emergency and Critical Care》2023,33(2):236-241

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Environmental factors related to damage by Heterobasidion abietinum in Abies alba forests in Southern Italy     

Antonella Puddu  Nicola Luisi  Paolo Capretti  Alberto Santini 《Forest Ecology and Management》2003,180(1-3):37-44

A study was carried out in southern Italy to determine the role of some factors in favouring Heterobasidion annosum s. l. spread and damage in eight Silver-fir (Abies alba Mill.) forests. All the studied stands were colonised by H. abietinum. The presence of the fungus (as carpophores on colonised wood) was detected by means of transects and varied from 7.0 to 56.0% of trees. Stand history, precipitation and forest origin, analysed by the χ²-test, had a significant effect on rot severity. Damage was more severe in stands more xerophytic where the woods were planted on pasturelands.  相似文献   

Food-caching western scrub-jays keep track of who was watching when   总被引：1，自引：0，他引：1  

Dally JM  Emery NJ  Clayton NS 《Science (New York, N.Y.)》2006,312(5780):1662-1665

Western scrub-jays (Aphelocoma californica) hide food caches for future consumption, steal others' caches, and engage in tactics to minimize the chance that their own caches will be stolen. We show that scrub-jays remember which individual watched them during particular caching events and alter their recaching behavior accordingly. We found no evidence to suggest that a storer's use of cache protection tactics is cued by the observer's behavior.  相似文献   

New constituents of sweet Capsicum annuum L. fruits and evaluation of their biological activity     

De Marino S  Borbone N  Gala F  Zollo F  Fico G  Pagiotti R  Iorizzi M 《Journal of agricultural and food chemistry》2006,54(20):7508-7516

Four new acyclic diterpene glycosides named capsianosides (1-4), together with 12 known compounds, were isolated from the fresh sweet pepper fruits of Capsicum annuum L., a plant used as a vegetable food, spice, and external medicine. The chemical structures of new natural compounds, as well as their absolute configurations, were established by means of spectroscopic data including infrared, high-resolution mass spectrometry, and one- and two-dimensional nuclear magnetic resonance and by chemical derivatization. The known capsidiol (11) showed bacteriostatic properties in vitro against Helicobacter pylori with a minimum inhibitory concentration (MIC) of 200 microg/mL when compared with the commercial drug metronidazole (MIC, 250 microg/mL). Some purified components were also tested for their antioxidant activities.  相似文献   

Defining place-keeping: The long-term management of public spaces     

Nicola Dempsey  Mel Burton 《Urban Forestry & Urban Greening》2012,11(1):11-20

There has long been a focus in urban landscape planning and design on the creation of highquality public spaces, or place-making. Large amounts of capital continue to be spent on creating such spaces without adequate thought or resources for their long-term maintenance and management of public spaces, or place-keeping.While there may be continued policy rhetoric about the importance of place-keeping, particularly as public spaces are recognised for their important contribution to health, wellbeing, biodiversity and also their economic value, this has not however been supported in practice. There are examples in many cities where public spaces are subject to poor management and maintenance practices. This is clearly visible where vandalism, litter and damage to facilities and equipment occur, and people no longer feel safe or comfortable.This paper argues that this uneven focus on place-keeping is not only due to a lack of resources but also a lack of understanding of the concept, its complexity and the wide implications it has for users, practitioners and policymakers. The paper aims to address this gap in knowledge by providing a detailed exploration and definition of place-keeping within the urban context. Place-keeping is not simply about the physical environment, its design and maintenance, but also encompasses the interrelated and non-physical dimensions of partnerships, governance, funding, policy and evaluation.  相似文献