Results 11 to 20 of about 47,412 (164)

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

Deep Genome Resequencing Reveals Artificial and Natural Selection for Visual Deterioration, Plateau Adaptability and High Prolificacy in Chinese Domestic Sheep

Frontiers in Genetics, 2019
Sheep were one of the earliest domesticated animals. Both artificial and natural selection during domestication has resulted in remarkable changes in behavioral, physiological, and morphological phenotypes; however, the genetic mechanisms underpinning ...
Weimin Wang, Xiaoxue Zhang, Xiang Zhou, Xiang Zhou, Yangzi Zhang, Yongfu La, Yu Zhang, Chong Li, Youzhang Zhao, Fadi Li, Fadi Li, Fadi Li, Bang Liu, Zhihua Jiang   +13 more
doaj   +1 more source

Applied cognition research to improve sheep welfare

Animal Sentience, 2019
If a change is going to occur in the care and management of domestic sheep, there needs to be a collaborative effort across many disciplines. This review by Marino & Merskin of the literature on cognitive processing in domestic sheep is limited by the ...
Kristina Horback
doaj   +1 more source

Seroprevalence and risk factors of Neospora caninum infection among domestic sheep in Henan province, central China

Parasite, 2018
This study aimed to determine the frequency of antibodies to Neospora caninum in domestic sheep raised in Henan province, central China. Serum samples from 779 domestic sheep were collected from March 2015 to May 2016, and antibodies to N.
Wang Shuai, Li Lingjuan, Lu Yi, Zhang Haizhu, Xie Qing, Zhang Zhenchao   +5 more
doaj   +1 more source

Application of UAV Remote Sensing for a Population Census of Large Wild Herbivores—Taking the Headwater Region of the Yellow River as an Example

Remote Sensing, 2018
We used unmanned aerial vehicles (UAVs) to carry out a relatively complete population census of large wild herbivores in Maduo County on the Tibetan Plateau in the spring of 2017.
Xingjian Guo, Quanqin Shao, Yuzhe Li, Yangchun Wang, Dongliang Wang, Jiyuan Liu, Jiangwen Fan, Fan Yang   +7 more
doaj   +1 more source