Results 1 to 10 of about 1,269,993 (208)

The Seroprevalence of Chlamydia abortus in Montana Domestic Rangeland Sheep Varies by Breed, Flock and Herding Practices [PDF]

Veterinary Medicine and Science
Background Ovine enzootic abortion (OEA) is a reproductive disease in domestic sheep characterized by late‐term abortions occurring 2–3 weeks before term and leading to economic losses for sheep producers.
Avia J. Simmons, Joanna‐Lynn C. Borgogna, Brent L. Roeder, Carl J. Yeoman, Christian J. Posbergh   +4 more
doaj   +2 more sources

Exposure of bighorn sheep to domestic goats colonized with Mycoplasma ovipneumoniae induces sub-lethal pneumonia. [PDF]

PLoS ONE, 2017
Bronchopneumonia is a population limiting disease of bighorn sheep (Ovis canadensis) that has been associated with contact with domestic Caprinae. The disease is polymicrobial but is initiated by Mycoplasma ovipneumoniae, which is commonly carried by ...
Thomas E Besser, E Frances Cassirer, Kathleen A Potter, William J Foreyt   +3 more
doaj   +1 more source

Potential disease agents in domestic goats and relevance to bighorn sheep (Ovis canadensis) management. [PDF]

PLoS ONE, 2017
Domestic goats are raised for meat, milk and hair production, in herds for rangeland weed control, and as pack animals. Domestic sheep, goats and wild bighorn sheep are all susceptible to a multifactorial pneumonia.
Mark L Drew, Glen C Weiser
doaj   +1 more source

Long divergent haplotypes introgressed from wild sheep are associated with distinct morphological and adaptive characteristics in domestic sheep

PLoS Genetics, 2023
The worldwide sheep population comprises more than 1000 breeds. Together, these exhibit a considerable morphological diversity, which has not been extensively investigated at the molecular level.
Hong Cheng, Zhuangbiao Zhang, Jiayue Wen, Johannes A. Lenstra, Rasmus Heller, Yudong Cai, Yingwei Guo, Ming Li, Ran Li, Wenrong Li, Sangang He, Jintao Wang, Junjie Shao, Yuxuan Song, Lei Zhang, Masum Billah, Xihong Wang, Mingjun Liu, Yu Jiang   +18 more
doaj   +2 more sources

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

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

Behavioural Indicators of Intra- and Inter-Specific Competition: Sheep Co-Grazing with Guanaco in the Patagonian Steppe

Animals, 2021
In extensive livestock production, high densities may inhibit regulation processes, maintaining high levels of intraspecific competition over time. During competition, individuals typically modify their behaviours, particularly feeding and bite rates ...
Tomás Fernández, Alex Lancaster, Claudio A. Moraga, Sergio Radic-Schilling, Achaz von Hardenberg, Paulo Corti   +5 more
doaj   +1 more source

Incorporating foray behavior into models estimating contact risk between bighorn sheep and areas occupied by domestic sheep

Wildlife Society Bulletin, 2014
Respiratory disease epidemics are considered a primary factor limiting bighorn sheep (Ovis canadensis) populations in most of the western United States. Diverse sources of evidence indicate that domestic sheep harbor pathogens that cause fatal pneumonia ...
Joshua M. O'brien, Chans S. O'brien, Clinton MCcarthy, Tim E. Carpenter   +3 more
doaj   +1 more source

First Report of Chlamydia Seroprevalence and Risk Factors in Domestic Black-Boned Sheep and Goats in China

Frontiers in Veterinary Science, 2020
The Gram-negative bacteria of the genus Chlamydia cause a wide range of diseases in humans and animals. The seroprevalence of Chlamydia in domestic black-boned sheep and goats in China is unknown.
Li-Xiu Sun, Qin-Li Liang, Xiao-Hui Hu, Zhao Li, Jian-Fa Yang, Feng-Cai Zou, Xing-Quan Zhu   +6 more
doaj   +1 more source