نتایج جستجو برای: vertical farms

تعداد نتایج: 116813  

2014
Ramona Trebbien Mariann Chriel Tina Struve Charlotte Kristiane Hjulsager Gitte Larsen Lars Erik Larsen

A major outbreak of canine distemper virus (CDV) in Danish farmed mink (Neovison vison) started in the late summer period of 2012. At the same time, a high number of diseased and dead wildlife species such as foxes, raccoon dogs, and ferrets were observed. To track the origin of the outbreak virus full-length sequencing of the receptor binding surface protein hemagglutinin (H) was performed on ...

2017
Angela Bullanday Scott Mini Singh Jenny-Ann Toribio Marta Hernandez-Jover Belinda Barnes Kathryn Glass Barbara Moloney Amanda Lee Peter Groves

There are few published studies describing the unique management practices, farm design and housing characteristics of commercial meat chicken and layer farms in Australia. In particular, there has been a large expansion of free range poultry production in Australia in recent years, but limited information about this enterprise exists. This study aimed to describe features of Australian commerc...

2011
Emer O'Mahony James F. Buckley Declan Bolton Paul Whyte Séamus Fanning

This study aimed to identify the sources and routes of transmission of Campylobacter in intensively reared poultry farms in the Republic of Ireland. Breeder flocks and their corresponding broilers housed in three growing facilities were screened for the presence of Campylobacter species from November 2006 through September 2007. All breeder flocks tested positive for Campylobacter species (with...

2004
Jerome L. Kaufman

To improve local food systems in the U.S. it is important to understand what is happening in the dominant mainstream food system, because that system poses formidable constraints to how much success local food systems can achieve. Major changes occurred in the food-system-centred part of the American landscape. The principal trends in the changes of the food system are that farmers get less of ...

Journal: :Epidemiology and infection 1995
W F Jacobs-Reitsma A W van de Giessen N M Bolder R W Mulder

Broiler flocks on two Dutch poultry farms were screened weekly for the presence of campylobacter in fresh caecal droppings during eight consecutive production cycles. Hatchery and fresh litter samples were taken at the start of each new cycle. Water, feed, insects, and faeces of domestic animals, present on the farms were also included in the sampling. Penner serotyping of isolates was used to ...

2016
Ad de Groof Martin Deijs Lars Guelen Lotte van Grinsven Laura van Os-Galdos Wannes Vogels Carmen Derks Toine Cruijsen Victor Geurts Mieke Vrijenhoek Janneke Suijskens Peter van Doorn Leo van Leengoed Carla Schrier Lia van der Hoek

Congenital tremor type A-II in piglets has been regarded as a transmissible disease since the 1970s, possibly caused by a very recently-described virus: atypical porcine pestivirus (APPV). Here, we describe several strains of APPV in piglets with clinical signs of congenital tremor (10 of 10 farms tested). Piglets on a farm with no history of congenital tremor were PCR-negative for the virus. T...

2017
Hong-Tae Park Hyun-Eui Park Yong-Il Cho Eui-Hyung Kim Myunghwan Jung Seung Won Shin Su-Hyung Lee Dae-Yong Kim Han Sang Yoo

Paratuberculosis (PTB) is caused by Mycobacterium avium subsp. paratuberculosis (MAP) and is one of the most widespread and economically important diseases in cattle. After birth, calves are raised with natural breast feeding without separation from their mothers in most Korean native cattle (Hanwoo breed) farms. Vertical transmission of PTB has been reported, but the exact PTB infection route ...

2011
Michael H. H. Price Stan L. Proboszcz Rick D. Routledge Allen S. Gottesfeld Craig Orr John D. Reynolds

BACKGROUND Pathogens are growing threats to wildlife. The rapid growth of marine salmon farms over the past two decades has increased host abundance for pathogenic sea lice in coastal waters, and wild juvenile salmon swimming past farms are frequently infected with lice. Here we report the first investigation of the potential role of salmon farms in transmitting sea lice to juvenile sockeye sal...

Journal: :Acta veterinaria Scandinavica 2015
Tomas Kupčinskas Inga Stadalienė Mindaugas Šarkūnas Vita Riškevičienė Marian Várady Johan Höglund Saulius Petkevičius

BACKGROUND This study examines the prevalence of drug resistance in gastrointestinal nematodes to macrocyclic lactones (ML) and benzimidazoles (BZ) in Lithuanian sheep using sensitive and precise in vitro methods. The survey was conducted from August 2013 to November 2014. Thirty-three farms with sheep previously treated with BZ and ivermectin (IVM) were included in the study. On 12 farms where...

Journal: :Journal of dairy science 2013
S A Adler S K Jensen E Govasmark H Steinshamn

Bulk tank milk from 28 dairy farms was sampled every second month for 2 yr to assess the effects of grassland management, production system and season on milk fatty acid (FA) composition, concentrations of fat-soluble vitamins, Se, and milk sensory quality. Grassland management varied in terms of time since establishment. Short-term grassland management (SG) was defined as establishment or rese...

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