Results 21 to 30 of about 1,269,900 (292)

Natural history of a bighorn sheep pneumonia epizootic: Source of infection, course of disease, and pathogen clearance

Ecology and Evolution, 2021
A respiratory disease epizootic at the National Bison Range (NBR) in Montana in 2016–2017 caused an 85% decline in the bighorn sheep population, documented by observations of its unmarked but individually identifiable members, the subjects of an ongoing ...
Thomas E. Besser, E. Frances Cassirer, Amy Lisk, Danielle Nelson, Kezia R. Manlove, Paul C. Cross, John T. Hogg   +6 more
doaj   +1 more source

Scrapie-resistant sheep show certain coat colour characteristics [PDF]

, 2009
Susceptibility to scrapie is known to be associated with polymorphisms at the prion protein (PrP) gene, and this association is the basis of current selective programmes implemented to control scrapie in many Countries.
White, I, Brotherstone, S., White, I., Sawalha, RM, Villanueva, B., Villanueva, B, Wilson, A. J., Brotherstone, S, Wilson, AJ, Bell, L., Bell, L, Sawalha, R. M.   +11 more
core   +1 more source

Microsatellite-Based Genetic Diversity among Egyptian Sheep Breeds [PDF]

Journal of Animal and Poultry Production, 2018
Sheep represent one of the most important domestic animals in Egypt, where meat and coarse wool production are the basic breeding objectives for Egyptian sheep.
H. Rushdi
doaj   +1 more source

Rumen protozoa in South African sheep with a summary of the worldwide distribution of sheep protozoa

Onderstepoort Journal of Veterinary Research, 2011
Protozoa species were identified in rumen contents of four domestic sheep (Ovis aries) from South Africa. All animals were fed a forage diet which consisted of 50% lucerne and 50% teff hay.
Dirk Booyse, Burk A. Dehority
doaj   +1 more source

Mitochondrial DNA diversity of modern, ancient and wild sheep(Ovis gmelinii anatolica) from Turkey: new insights on the evolutionary history of sheep. [PDF]

PLoS ONE, 2013
In the present study, to contribute to the understanding of the evolutionary history of sheep, the mitochondrial (mt) DNA polymorphisms occurring in modern Turkish native domestic (n = 628), modern wild (Ovis gmelinii anatolica) (n = 30) and ancient ...
Sevgin Demirci, Evren Koban Baştanlar, Nihan Dilşad Dağtaş, Evangelia Pişkin, Atilla Engin, Füsun Ozer, Eren Yüncü, Sükrü Anıl Doğan, Inci Togan   +8 more
doaj   +1 more source

Evidence for independent domestication of sheep mtDNA lineage A in India and introduction of lineage B through Arabian sea route

Scientific Reports, 2021
India ranks the second in the world in terms of its sheep population with approximately 74.26 million represented by 44 well-described breeds in addition to several non-descript populations.
Ranganathan Kamalakkannan, Satish Kumar, Karippadakam Bhavana, Vandana R. Prabhu, Carolina Barros Machado, Hijam Surachandra Singha, Dhandapani Sureshgopi, Vincy Vijay, Muniyandi Nagarajan   +8 more
doaj   +1 more source

Molecular Detection and Identification of Chlamydiaceae in the Eyes of Wild and Domestic Ruminant Hosts from Northern Spain

Pathogens, 2021
Infections by Chlamydiae are associated with ocular disease in humans and animals. In this study, the presence and diversity of Chlamydia spp. was assessed in diseased and healthy eyes of domestic sheep and wild ruminants that share mountain habitats in ...
Andrea Dias-Alves, Oscar Cabezón, Nicole Borel, Jorge Ramón López-Olvera, Gregorio Mentaberre, Santiago Lavín, Xavier Fernández Aguilar   +6 more
doaj   +1 more source

Sheep may not be an important zoonotic reservoir for Cryptosporidium and Giardia parasites [PDF]

, 2005
Little is known of the prevalence of Cryptosporidium and Giardia parasites in sheep and the genotypes that they harbor, although potentially sheep may contribute significantly to contamination of watersheds.
Traub, R, Read, C., Read, C, Mcinnes, L, Bath, C, Besier, B, Elliot, A., McInnes, L., Traub, R.J., Elliot, A, Robertson, I., Robertson, I, Bath, C., Ryan, UM, Besier, B., Ryan, U.M.   +15 more
core   +1 more source

Encounters between Alpine ibex, Alpine chamois and domestic sheep in the Swiss Alps

Hystrix, the Italian Journal of Mammalogy, 2002
<strong>Abstract</strong> Information regarding spatio-temporal relationships and encounters of sympatric domestic sheep, Alpine ibex (<em>Capra ibex ibex</em>) and Alpine chamois (<em>Rupicapra rupicapra rupicapra</em ...
Marie-Pierre Ryser-Degiorgis, Paul Ingold, Hanna Tenhu, Ana Marìa Tébar Less, Andreas Ryser, Marco Giacometti   +5 more
doaj   +1 more source

Executive Decision-Making in the Domestic Sheep

PLoS ONE, 2011
Two new large animal models of Huntington's disease (HD) have been developed recently, an old world monkey (macaque) and a sheep. Macaques, with their large brains and complex repertoire of behaviors are the 'gold-standard' laboratory animals for testing cognitive function, but there are many practical and ethical issues that must be resolved before HD
Morton, A Jennifer, Avanzo, Laura
openaire   +5 more sources