Results 21 to 30 of about 1,274 (167)

To scan or not to scan? Efficacy of transthoracic ultrasonography for ovine pulmonary adenocarcinoma screening in a large commercial UK sheep flock

open access: yesVeterinary Record, Volume 191, Issue 3, 6/13 August 2022., 2022
Abstract Background Transthoracic ultrasonography (TTUS) is currently the only widely used method to diagnose preclinical or subclinical ovine pulmonary adenocarcinoma (OPA) in the live sheep. However, little is known about the test characteristics of TTUS.
Peers Davies   +5 more
wiley   +1 more source

Association of Ovar‐DRB1 alleles with innate immune responses in sheep

open access: yesVeterinary Medicine and Science, Volume 8, Issue 2, Page 752-757, March 2022., 2022
Results of this study provided additional support for the association between Ovar‐DRB1 alleles and regulation of immune responses in sheep population. Description of MHC polymorphism and its role in the controlling of immune responses will increase our understanding of host‐pathogen interactions, and ultimately facilitate the selection of disease ...
Atefeh Esmailnejad   +3 more
wiley   +1 more source

Effects of housing on the incidence of visna/maedi virus infection in sheep flocks [PDF]

open access: yesResearch in Veterinary Science, 2010
The incidence of seroconversion to visna/maedi virus (VMV) infection and its relationship with management and sheep building structure was investigated in 15 dairy sheep flocks in Spain during 3-7years. Incidence rates were 0.09 per sheep-year at risk in semi-intensive Latxa flocks and 0.44 per sheep-year at risk in intensive Assaf flocks and was ...
Leginagoikoa, Iratxe   +8 more
openaire   +3 more sources

A novel enterovirus in lambs with poliomyelitis and brain stem encephalitis

open access: yesTransboundary and Emerging Diseases, Volume 69, Issue 2, Page 227-234, March 2022., 2022
Abstract An Austrian organic dairy sheep farm experienced cases of recumbency and sudden deaths in 3‐ to 4‐week‐old lambs. Two animals were subjected to thorough clinical and pathological investigations. Pathohistological analysis identified severe nonsuppurative myelitis and mild nonsuppurative encephalitis.
Herbert Weissenböck   +8 more
wiley   +1 more source

First molecular detection of Maedi-Visna virus in Awassi sheep of Middle Iraq regions

open access: yesBulgarian Journal of Veterinary Medicine, 2022
Respiratory viral infections cause significant economic losses in sheep production. This preliminary molecular study aimed to detect the Maedi-Visna virus infection in Awassi sheep in three gover-norates in the middle region of Iraq.
A. Mosa, M. M. Zenad
doaj   +1 more source

Visna in a UK flock and the biosecurity risk arising from the onward sale of likely infected pedigree stock

open access: yesVeterinary Record Case Reports, Volume 9, Issue 3, September 2021., 2021
Abstract Small ruminant lentivirus infections in sheep most commonly present with respiratory signs (maedi) and indurative mastitis, while primary neurological signs (visna) have rarely been reported in Great Britain (GB). Most reports of visna describe signs referable to myelitis, although central signs associated with encephalitis may feature.
Mike Evans   +5 more
wiley   +1 more source

Pestivirus apparent prevalence in sheep and goats in Northern Ireland: A serological survey

open access: yesVeterinary Record, Volume 188, Issue 1, January 2021., 2021
Abstract Background: Bovine viral diarrhoea virus (BVDV) and border disease virus (BDV) can cause significant health problems in ruminants and economic impacts for farmers. The aim of this study was to evaluate pestivirus exposure in Northern Ireland sheep and goat flocks, and to compare findings with a previous study from the region. Methods: Up to 20
Emma Campbell   +10 more
wiley   +1 more source

A Seroprevalence Survey of Maedi-Visna Among Twenty-Four Ovine Floks from Twelve Regions of China

open access: yesJournal of Integrative Agriculture, 2013
Maedi-visna virus (MVV) is an ovine lentivirus that is widespread in many countries worldwide. Both clinical and subclinical MVV infections cause substantial economic losses.
Ke-shan ZHANG   +4 more
doaj   +1 more source

Characterization of the lymphocytic alveolitis in visna-maedi virus-induced interstitial lung disease of sheep [PDF]

open access: yesClinical and Experimental Immunology, 1992
SUMMARYIn order to investigate the contribution of lymphocytes to interstitial lung disease in animals with visna-maedi infection, we studied in parallel bronchoalveolar cells and lung tissue from slaughterhouse animals (n = 29) and from colostrum-deprived lambs transtracheally inoculated with field isolates of visna-maedi virus (n = 9) or saline (n ...
G, Cordier   +5 more
openaire   +2 more sources

Genetic evaluation of small ruminant lentivirus susceptibility in Valais blacknose sheep

open access: yes, 2021
Animal Genetics, Volume 52, Issue 5, Page 781-782, October 2021.
Anna Letko   +5 more
wiley   +1 more source

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