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Статті в журналах з теми "Risk Factors and Sheep"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Y, Adnan. "Prevalence and Risk Factors of Theileriosis in Goat and Sheep in Lahore." Open Access Journal of Veterinary Science & Research 6, no. 2 (2021): 1–4. http://dx.doi.org/10.23880/oajvsr-16000215.

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In Pakistan, theileriosis is a common hemoparasitic disease in small ruminants. In order to establish the prevalence of theileriosis in Lahore, Pakistan, a total of n=730 animals were chosen. n = 103 (14.11%) of the samples tested positive for theileria under a microscope. Theileria spp. was found to be present in 10.73% of goats (44/410) and 18.44% of sheep (59/320), respectively. Theileria infection in goats was unaffected by age, sex, or season (P > 0.05). Age and season had an effect on the prevalence of theileriosis in sheep (P < 0.05), with a gender trend. To determine the effect o

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2

Mattiello, Silvana, Tafsit Bresciani, Serena Gaggero, Claudia Russo, and Vito Mazzarone. "Sheep predation: Characteristics and risk factors." Small Ruminant Research 105, no. 1-3 (2012): 315–20. http://dx.doi.org/10.1016/j.smallrumres.2012.01.013.

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3

Rose, Hannah, and Richard Wall. "Endemic sheep scab: Risk factors and the behaviour of upland sheep flocks." Preventive Veterinary Medicine 104, no. 1-2 (2012): 101–6. http://dx.doi.org/10.1016/j.prevetmed.2011.10.010.

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4

Martins, Natália Soares, Sara Patron da Motta, Carolina Caetano dos Santos, et al. "Ovine Eimeria infections in southern Brazil – prevalence and risk factors." Semina: Ciências Agrárias 43, no. 1 (2022): 229–40. http://dx.doi.org/10.5433/1679-0359.2022v43n1p229.

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Eimeria infections are common in sheep industry worldwide, however information about their epidemiology is scarce in southern state of Rio Grande do Sul, Brazil. Therefore, a cross-sectional study was carried out to determine the prevalence, species characterization, and associated risk factors between Eimeria species and sheep flocks. Fecal samples from 428 sheep from 21 farms were tested for the presence of oocysts. The overall prevalence of Eimeria spp. was 68.69% and was significantly affected by age of the sheep, with highest prevalence in animals under 18 months of age. Eight Eimeria spe

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5

Nie, Lan-Bi, Wei Cong, Yang Zou, et al. "First Report of Seroprevalence and Risk Factors ofNeospora caninumInfection in Tibetan Sheep in China." BioMed Research International 2018 (May 29, 2018): 1–4. http://dx.doi.org/10.1155/2018/2098908.

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Neospora caninumis an intracellular protozoan parasite which can cause abortion and stillbirth in ruminants. However, there is no information on Tibetan sheepN. caninuminfection in China. A total of 2187 serum samples were collected from Tibetan sheep in the major production areas of Luqu, Maqu, and Tianzhu in Gansu province, and Nyingchi in southeast Tibet, China. All samples were analyzed for the presence of antibodies toN. caninumusing a competitive-inhibition enzyme-linked immunoassay. Of the 2187 serum samples, 184 (8.4%, 95% CI 7.3-9.6) were testedN. caninumseropositive. TheN. caninumser

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6

De LANGE, M. M. A., B. SCHIMMER, P. VELLEMA, J. L. A. HAUTVAST, P. M. SCHNEEBERGER, and Y. T. H. P. VAN DUIJNHOVEN. "Coxiella burnetii seroprevalence and risk factors in sheep farmers and farm residents in The Netherlands." Epidemiology and Infection 142, no. 6 (2013): 1231–44. http://dx.doi.org/10.1017/s0950268813001726.

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SUMMARYIn this study, Coxiella burnetii seroprevalence was assessed for dairy and non-dairy sheep farm residents in The Netherlands for 2009–2010. Risk factors for seropositivity were identified for non-dairy sheep farm residents. Participants completed farm-based and individual questionnaires. In addition, participants were tested for IgG and IgM C. burnetii antibodies using immunofluorescent assay. Risk factors were identified by univariate, multivariate logistic regression, and multivariate multilevel analyses. In dairy and non-dairy sheep farm residents, seroprevalence was 66·7% and 51·3%,

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7

Qin, Si-Yuan, Ming-Yang Yin, Wei Cong, et al. "Seroprevalence and Risk Factors ofChlamydia abortusInfection in Tibetan Sheep in Gansu Province, Northwest China." Scientific World Journal 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/193464.

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Chlamydia abortus, an important pathogen in a variety of animals, is associated with abortion in sheep. In the present study, 1732 blood samples, collected from Tibetan sheep between June 2013 and April 2014, were examined by the indirect hemagglutination (IHA) test, aiming to evaluate the seroprevalence and risk factors ofC. abortusinfection in Tibetan sheep. 323 of 1732 (18.65%) samples were seropositive forC. abortusantibodies at the cut-off of 1 : 16. A multivariate logistic regression analysis was used to evaluate the risk factors associated with seroprevalence, which could provide founda

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8

Adamu, S. G., G. S. N. Kia, S. N. A. Saidu, et al. "Seroprevalence of Coxiella burnetii in Sheep and Goats and associated Risk ‎Factors." Sahel Journal of Veterinary Sciences 19, no. 3 (2022): 8–13. http://dx.doi.org/10.54058/saheljvs.v19i3.315.

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A cross-sectional seroprevalence study was conducted among flocks of sheep and goats in three agricultural zones of Borno State. Seven hundred sixty-eight small ruminants (384 sheep and goats each) of both sexes (282 males and 486 females) of different age groups from 90 flocks were randomly selected for blood collection and related epidemiological data. A commercial indirect enzyme-linked immunosorbent assay (iELISA; I.D. Vet) was used to test the sera samples for the presence of both phases I and II antibodies against Coxiella burnetii infections. The overall seroprevalence in sheep and goat

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9

Pavlak, Marina, Ksenija Vlahović, Denis Cvitković, et al. "Seroprevalence and risk factors associated with maedi visna virus in sheep population in southwestern Croatia." Veterinarski arhiv 92, no. 3 (2022): 277–89. http://dx.doi.org/10.24099/vet.arhiv.1333.

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The objective of this cross-sectional study was to detect the presence of maedi visna virus (MVV) infections in sheep in three counties in southwestern Croatia: Istria County, Primorje-Gorski Kotar County and Lika-Senj County, and to estimate the influence of geographical location, breed, age and gender as risk factors on the prevalence rate. A total of 460 randomly selected sheep were tested using a commercially available ID Screen® MVV/CAEV Indirect screening test, VISNAS-5P (ID.VET, Grabels France) for detection of antibodies against the Maedi-Visna virus. The prevalence rate for the entire

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10

Binns, S. H., I. J. Cox, S. Rizvi, and L. E. Green. "Risk factors for lamb mortality on UK sheep farms." Preventive Veterinary Medicine 52, no. 3-4 (2002): 287–303. http://dx.doi.org/10.1016/s0167-5877(01)00255-0.

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11

Fajer, Zainab Bressam, Ali Ibrahim Ali AL-Ezzy, and Ahmad H. Al-Zuhairi. "Evaluation Of Risk Factors For Dermal Infections with Staphylococcus au-reus and Methicillin Resistant Staphylococcus aureus Among Sheep In Diyala Governorate, Iraq." Diyala Journal for Veterinary Sciences 1, no. 1 (2023): 98–125. https://doi.org/10.71375/djvs.2023.01109.

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Background: Staphylococcus aureus is one of the dominant pathogenic bacteria among skin infections in human and animals.Aims: To evaluate the risk factors of dermal infections with S.aureus and methi-cillin resistant S.aureusMRSA) (Methods :standard microbiological procedures were used for isolation of S.aureus and MRSAResults : No correlation reported between breed and S. aureus infections among sheep. Significant correlation reported between breed and MRSA infections on sheep. No correlation was reported between flock size and S. aureus infections among sheep. No significant correlation repo

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12

Morais, Dayana Firmino de, Vinícius Longo Ribeiro Vilela, Thais Ferreira Feitosa, et al. "Prevalence and risk factors for Cysticercus tenuicollis in goats and sheep in Paraíba, northeastern Brazil." Revista Brasileira de Parasitologia Veterinária 26, no. 2 (2017): 235–38. http://dx.doi.org/10.1590/s1984-29612016092.

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Abstract This study aimed to determine the prevalence and risk factors for C. tenuicollis among goats and sheep in slaughterhouses in Paraíba. 390 animals (195 goats and 195 sheep) in the municipalities of Patos and Esperança, Paraíba, Brazil, were inspected between February and May 2014. The prevalence of C. tenuicollis was 39% (76/195) in goats and 17.4% (34/195) in sheep. In both species, most of the cysticerci vesicles were located at the omentum and mesentery. The only risk factor found was extensive sheep farming. It can be concluded that C. tenuicollis is highly prevalent in small rumin

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13

Ruiz de Arcaute, Marta, Delia Lacasta, José María González, et al. "Management of Risk Factors Associated with Chronic Oral Lesions in Sheep." Animals 10, no. 9 (2020): 1529. http://dx.doi.org/10.3390/ani10091529.

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Oral disorders constitute a significant cause of weight loss in sheep. In a study of disorders of the oral cavity of 36,033 sheep from 60 meat sheep flocks in Spain, we looked for management risk factors associated with chronic oral lesions. Mandibular and maxillary disorders were assessed as an external manifestation of oral lesions by palpation, searching for tissue swellings, fistulae, or open wounds. The prevalence of flocks containing sheep with jaw disorders was 98.3%, with an average individual prevalence of 5.5%. The majority of lesions were located in in the mid-region of the mandible

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14

Hotea, Ionela, Viorel Herman, Emil Tîrziu, et al. "Seroprevalence and Risk Factors for Toxoplasma gondii Infection in Sheep and Goats from Romania." Parasitologia 1, no. 2 (2021): 36–44. http://dx.doi.org/10.3390/parasitologia1020005.

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Toxoplasma gondii infections in sheep and goats are important economically and for public health for many countries, including Romania. In this study, seroprevalence and associated risk factors for T. gondii infection were determined in 2500 sheep and 500 goats from three counties in the Banat region of Romania. Antibodies to T. gondii were found in 1266 of 2500 (50.64%) sheep and in 375 (75%) of 500 goats, by using a commercial (IDEXX) ELISA. To evaluate the epidemiological status of the infection, some risk factors for ovine and caprine T. gondii infections were assessed. The main risk facto

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15

Fayez, Mahmoud, Ahmed Elmoslemany, Mohammed Alorabi, et al. "Seroprevalence and Risk Factors Associated with Chlamydia abortus Infection in Sheep and Goats in Eastern Saudi Arabia." Pathogens 10, no. 4 (2021): 489. http://dx.doi.org/10.3390/pathogens10040489.

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Chlamydia abortus (C. abortus) is intracellular, Gram-negative bacterium that cause enzootic abortion in sheep and goats. Information on C. abortus seroprevalence and flock management risk factors associated with C. abortus seropositivity in sheep and goats in Saudi Arabia are scarce. The objectives of this study were to (i) estimate the animal, flock, and within-flock seroprevalence of C. abortus among Eastern Province sheep and goat flocks and (ii) identify the flock management and animal risk factors associated with C. abortus seropositivity in Eastern Province, Saudi Arabia. A cross-sectio

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16

Radhwane, Saidi, Belala Rédha, Mecherouk Choayb, Lakhal Zohra, Labiadh Saadia, and Mimoune Nora. "Study of fecal elimination parasites and associated risk factors in sheep." Brazilian Journal of Animal and Environmental Research 7, no. 3 (2024): e71547. http://dx.doi.org/10.34188/bjaerv7n3-022.

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This study aimed to investigate some fecal elimination parasites and the effect of certain risk factors on parasitism rate in sheep from the Laghouat region in Southern Algeria. Coproscopy using various qualitative methods (direct examination, flotation and sedimentation, Zeihel Nelson staining) and quantitative methods (Mac Master) were conducted over a period of 4 months, on a total of 170 sheep. The results revealed an overall infestation rate of 82.9%. This study identified the presence of the following parasites: Cryptosporidium sp. (57.1%), Eimeria sp. (52.9%); Nematodirus sp. (24.7%), S

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17

Barquero, Nuria, Esperanza Gomez-Lucia, Alvaro Arjona, et al. "Investigation of risk factors associated with infections caused by small ruminant lentiviruses." Bulletin of the Veterinary Institute in Pulawy 57, no. 4 (2013): 473–78. http://dx.doi.org/10.2478/bvip-2013-0082.

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Abstract An epidemiological study was conducted to identify risk factors related to small ruminant lentivirus (SRLV) infection in the central region of Spain. Between October 1998 and October 2000, a total of 194 sheep from 10 flocks and 163 goats from three flocks were tested for SRLV antibodies, resulting in 65.5% and 8.0% of seroprevalence, respectively. The relationship between differences in prevalence of SRLV, geographical location of the flock, and possible factors related to the flock that could enhance transmission were studied. Results of multivariable analysis showed an association

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18

Xu, Le, Suya Li, Hong Li, et al. "Predicting Tuberculosis Risk in Cattle, Buffaloes, Sheep, and Goats in China Based on Air Pollutants and Meteorological Factors." Animals 14, no. 24 (2024): 3704. https://doi.org/10.3390/ani14243704.

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Tuberculosis is a zoonotic chronic respiratory infectious disease caused by the Mycobacterium tuberculosis complex. The outbreak and epidemic of tuberculosis can seriously threaten human and veterinary health. To investigate the effects of environmental factors on tuberculosis in domestic ruminants, we collected data regarding the prevalence of tuberculosis in cattle, buffaloes, sheep, and goats in China (1956–2024) from publicly published literature and available databases. We identified the key risk factors among six major air pollutants and 19 bioclimatic variables; simulated the risk distr

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19

Fesseha, Haben, and Mesfin Mathewos. "Prevalence and Risk Factors of Bovine and Ovine Lungworm Infection at Durame District, Southern Ethiopia." Journal of Parasitology Research 2021 (December 2, 2021): 1–7. http://dx.doi.org/10.1155/2021/6637718.

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Background. Lungworms are parasitic nematodes of the order Strongylidae that infect the lungs of cattle and sheep and cause bronchitis or pneumonia. Methods. An abattoir-based cross-sectional study was conducted from November 2018 to April 2019 to determine the comparative prevalence and the possible risk factors of lungworm infection in sheep and cattle of Durame district of Kembata Tembaro zone. For this purpose, a total of 410 animals (209 sheep and 201 cattle) were randomly selected and examined for the presence of different lungworm species using the modified Baermann technique and postmo

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20

Page, Phillipa, Mike Evans, Clare Phythian, Natalia Vasileiou, and JP Crilly. "Mastitis in meat sheep." Livestock 26, no. 5 (2021): 248–53. http://dx.doi.org/10.12968/live.2021.26.5.248.

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Mastitis in meat sheep occurs in all flocks, but incidence can vary. It can be a severe disease, resulting in ewe deaths, but chronic and subclinical cases also occur. It is a costly disease, but accurate assesments of the impact, especially of chronic and subclinical disease, are lacking. The most commonly involved pathogens are Mannheimia haemolytica and Staphylococcus aureus. The most important risk factors relate to compromise of teat defences, and increased transmission, but environmental cases do occur. Treatment of acute clinical cases requires systemic antibiosis and non-steroidal anti

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21

Wang, Shuai, Lingjuan Li, Yi Lu, Haizhu Zhang, Qing Xie, and Zhenchao Zhang. "Seroprevalence and risk factors of Neospora caninum infection among domestic sheep in Henan province, central China." Parasite 25 (2018): 15. http://dx.doi.org/10.1051/parasite/2018019.

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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. caninum were evaluated using an enzyme-linked immunosorbent assay (ELISA). The results showed an overall IgG positive rate of 7.32% (57/779). The risk factors significantly related to seropositivity to N. caninum in sheep were the age, the presence of dogs, and the rearing system. This is the first report of N. caninum infection and associated risk factors i

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22

El Khalfaoui, Nora, Bouchra El Amiri, Jean-François Cabaraux, et al. "Rearing Management and Its Impact on Caseous Lymphadenitis in Sheep." Animals 14, no. 10 (2024): 1504. http://dx.doi.org/10.3390/ani14101504.

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Two surveys were conducted to assess the prevalence and risk factors of ovine caseous lymphadenitis (CL) and explore the association between its superficial and visceral forms in Sardi sheep in Settat province, Morocco. A total of 1521 sheep, including 318 lambs < 6 months, 572 young sheep aged 6–24 months, and 631 adult sheep > 24 months, were examined from 57 flocks. Superficial CL prevalence levels were as follows: 69/318 in lambs, 292/572 in young sheep, and 114/631 in adult sheep. Additionally, 2124 sheep, including 1813 young and 311 adult sheep, were inspected in slaughterhouses a

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23

Campigotto, Gabriela, Aleksandro S. da Silva, Andréia Volpato, et al. "Risk factors for Toxoplasma gondii in sheep of southern Brazil." Comparative Clinical Pathology 26, no. 3 (2017): 631–35. http://dx.doi.org/10.1007/s00580-017-2432-4.

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24

FRID, ALEJANDRO. "Vigilance by female Dall's sheep: interactions between predation risk factors." Animal Behaviour 53, no. 4 (1997): 799–808. http://dx.doi.org/10.1006/anbe.1996.0345.

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25

Albadrani, Refaa, and Manal Hasan. "Survey and Risk Factors of Cryptosporidium spp. Infection in Sheep." Basrah Journal of Veterinary Research 24, no. 2 (2025): 107–17. https://doi.org/10.23975/bjvr.2025.157618.1200.

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26

Magalhães, Fernando Jorge Rodrigues, Müller Ribeiro-Andrade, Adrianne Mota de Alcântara, et al. "Risk factors for Toxoplasma gondii infection in sheep and cattle from Fernando de Noronha Island, Brazil." Revista Brasileira de Parasitologia Veterinária 25, no. 4 (2016): 511–15. http://dx.doi.org/10.1590/s1984-29612016051.

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Abstract Toxoplasmosis is a zoonotic disease of global distribution that affects all warm-blooded animals. The purpose of this investigation was to determine the prevalence of T. gondii infection and identify the risk factors associated with its occurrence in domestic ruminants raised on the island of Fernando de Noronha, Brazil, and to confirm that cattle and sheep raised in Fernando de Noronha Island present statistically different T. gondii prevalence rates. Serum samples were collected from sheep (n=240) and cattle (n=140) for the detection of antibodies by indirect immunofluorescence. Sam

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27

Green, Darren M., Victor J. del Rio Vilas, Colin P. D. Birch, et al. "Demographic risk factors for classical and atypical scrapie in Great Britain." Journal of General Virology 88, no. 12 (2007): 3486–92. http://dx.doi.org/10.1099/vir.0.83225-0.

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Following the bovine spongiform encephalopathy (BSE) crisis, the European Union has introduced policies for eradicating transmissible spongiform encephalopathies (TSEs), including scrapie, from large ruminants. However, recent European Union surveillance has identified a novel prion disease, ‘atypical’ scrapie, substantially different from classical scrapie. It is unknown whether atypical scrapie is naturally transmissible or zoonotic, like BSE. Furthermore, cases have occurred in scrapie-resistant genotypes that are targets for selection in legislated selective breeding programmes. Here, the

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Adeyemi, Oluwayomi O., Aishat E. Adekanmbi, Esther D. Oluso-ga, et al. "Risk Factors Associated with Eimeria Infections in Ruminants Traded at Kara Market, Ogun State, Nigeria." Pan African Journal of Life Sciences 9, no. 1 (2025): 369–75. https://doi.org/10.36108/pajols/5202/90.0190.

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Background: Ruminants such as cattle, goats, and sheep are economically important livestock reared for meat, milk, hides, and wool. Eimeria parasites cause coccidiosis which impacts the health, welfare, and productivity of ruminants globally. This study aimed to determine the occurrence of Eimeria species infecting cattle, goats, and sheep traded at Kara market, Ogun State, Nigeria. Methods: Fresh faecal samples were collected randomly from 54 cattle, 60 goats, and 51 sheep between April and June 2024. Samples were screened for Eimeria oocysts using the saturated saline flotation method. Oocys

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Rahman, Md, Sonia Akther, Md Haque, Md Ali, Md Zihadi, and Md Rahman. "Ovine Brucellosis in Bangladesh: Seroprevalence and its associated risk factors." Journal of Research in Veterinary Sciences 3, no. 1 (2024): 28. http://dx.doi.org/10.5455/jrvs.20240519053238.

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Aim: Brucellosis is a highly zoonotic and infectious disease caused by different species of the Brucella genus around the world. This disease has a substantial impact on animal and human health, and also on socioeconomic aspects, therefore it could pose a serious impediment to the development of livestock production. There has been a lack of extensive research on the seroprevalence of brucellosis in sheep, as well as risk factor analysis in Bangladesh. As a result, the current investigation was undertaken to estimate the seroprevalence and associated risk factors for ovine brucellosis in Bangl

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30

Abdallah, Kamel, Karima, et al. "Cross-Sectional Survey on Toxoplasma gondii Infection in Cattle, Sheep, and Goats in Algeria: Seroprevalence and Risk Factors." Veterinary Sciences 6, no. 3 (2019): 63. http://dx.doi.org/10.3390/vetsci6030063.

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Анотація:

A cross-sectional study aimed at assessing the seroprevalence and identifying the risk factors for Toxoplasma gondii infection in cattle, sheep, and goats in eight provinces located in two main Algerian agro-ecological zones was carried out from October 2015 to March 2018. Blood sera from 4074 animals of both sexes were tested for the presence of anti-T. gondii IgG antibodies, using the indirect, enzyme-linked, immunosorbent assay technique (ELISA). Moreover, to identify the potential risk factors of T. gondii infection, a survey through a breeders’ questionnaires was conducted. Nearly one-fou

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Akhter, Laboni, Md Ariful Islam, Susanto Das, Mst Minara Khatun, and Md Ariful Islam. "Seroprevalence of Brucellosis and its Associated Risk Factors in Sheep and Goat in the Farms and Slaughter House in Mymensingh, Bangladesh." Microbes and Health 3, no. 1 (2014): 25–28. http://dx.doi.org/10.3329/mh.v3i1.19778.

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Анотація:

A cross sectional study was performed to determine the seroprevalence and risk factors of brucellosis in sheep and goat on the farms, Veterinary Teaching Hospital of Bangladesh Agricultural University (BAU), and animal slaughter house of Mymensingh, Bangladesh. Sera were prepared after collecting blood samples from sheep (n=101) and goat (n=113). Risk factors relating to brucellosis were determined considering the variables generated from a questionnaire. These variables included animals age, sex, pregnancy, and husbandry system. The sera were tested by Rose Bengal Plate Test (RBPT) for the d

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Best, Caroline M., Janet Roden, Kate Phillips, Alison Z. Pyatt, and Malgorzata C. Behnke. "New Insight into the Prevalence and Risk Factors for Three Distinct Hoof Conformation Traits in UK Commercial Sheep Flocks." Veterinary Sciences 8, no. 9 (2021): 176. http://dx.doi.org/10.3390/vetsci8090176.

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Lameness in sheep continues to be a global health, welfare and economic concern. Damaged, misshapen or overgrown feet have the potential to cause lameness either directly, or indirectly. There is a lack of understanding of the predisposing factors for different hoof conformation traits in sheep. Our exploratory study aimed to investigate the prevalence of, and risk factors for, three distinct hoof conformation traits relating to the sole and heel, hoof wall, and hoof wall overgrowth. Feet of 400 ewes from four UK commercial sheep farms were inspected at four time points across 12 months. For e

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Al-Momani, Waleed, and Mahmoud N. Abo-Shehada. "Flock level seroprevalence of and risk factors for parainfluenza type 3 virus in small ruminants in northern Jordan." Current Research in Microbiology and Infection 1, no. 1 (2020): 22–29. http://dx.doi.org/10.31559/crmi2020.1.1.4.

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Background. Infectious diseases of the respiratory tract of farm animals are caused by a combination of infectious agents and predisposing factors. Parainfluenza virus type 3 is usually nominated as one of the causes. Seroprevalence and animal risk factors for PI3 infections were investigated in northern Jordan. Methods. The study involved 104 small ruminant flocks (18 sheep, 27 goats, and 59 mixed flocks sampled in northern Jordan. Indirect ELISA was used to test 678 blood samples used in this study. Flocks were identified as infected if at least 1 animal has been detected as positive by the

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Abdelbaset, Abdelbaset E., Maha I. Hamed, Mostafa F. N. Abushahba, Mohamed S. Rawy, Amal S. M. Sayed, and Jeffrey J. Adamovicz. "Toxoplasma gondii seropositivity and the associated risk factors in sheep and pregnant women in El-Minya Governorate, Egypt." January-2020 13, no. 1 (2020): 54–60. http://dx.doi.org/10.14202/vetworld.2020.54-60.

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Background and Aim: The cosmopolite protozoan, Toxoplasma gondii, has a significant economic and medical impact. Cats traditionally play a predominant role in the disease maintenance cycle; however, humans can be infected as a result of milk and meat consumption of Toxoplasma-infected livestock. In addition, infected pregnant women, even symptomless, can pass the disease to their unborn fetus. The limited clinical records and absence of specific national educational programs in countries like Egypt underscore the need for periodic toxoplasmosis disease evaluation. Here, we identified T. gondii

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Selim, Ahmed Magdy, Samar Magdy Atwa, Attia Abdullah El Gedawy, Yamen Mohammed Hegazy, Mohamed Abdo Rizk, and Emad Elsayed Younis. "Risk factors associated with the seroprevalence of caseous lymphadenitis in sheep." Comparative Clinical Pathology 30, no. 2 (2021): 285–91. http://dx.doi.org/10.1007/s00580-021-03198-0.

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Barwell, Robert, Jeff Eppleston, Bruce Watt, and Navneet K. Dhand. "Foot abscess in sheep: Evaluation of risk factors and management options." Preventive Veterinary Medicine 122, no. 3 (2015): 325–31. http://dx.doi.org/10.1016/j.prevetmed.2015.10.017.

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de Carvalho, Sônia Maria, Ana Lys B. B. Mineiro, Vanessa Castro, Margareth E. Genovez, Sérgio Santos Azevedo, and Francisco A. L. Costa. "Leptospirosis seroprevalence and risk factors for sheep in Maranhão state, Brazil." Tropical Animal Health and Production 46, no. 2 (2013): 491–94. http://dx.doi.org/10.1007/s11250-013-0505-1.

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Rubel, Wiebke, Clara Schoneberg, Annika Wolf, Martin Ganter, and Benjamin Ulrich Bauer. "Seroprevalence and Risk Factors of Anaplasma spp. in German Small Ruminant Flocks." Animals 11, no. 10 (2021): 2793. http://dx.doi.org/10.3390/ani11102793.

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Knowledge about the distribution of Anaplasma spp. in small ruminants from Germany is limited. Therefore, serum samples were examined from 71 small ruminant flocks (2731 sheep, 447 goats) located in the five German federal states: Schleswig-Holstein (SH), Lower Saxony (LS), North Rhine-Westphalia (NRW), Baden-Wuerttemberg (BW) and Bavaria (BAV). Antibodies to Anaplasma spp. were determined by a cELISA based on the MSP5 antigen. A risk factor analysis at animal and flock level was also performed. Antibodies to Anaplasma spp. were detected in 70/71 flocks without significant difference in the in

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Avais, Muhammad, Ghazanfar Rashid, Muhammad Awais, et al. "Prevalence and Associated Risk Factors of Coccidiosis in Small Ruminants in Dera Ghazi Khan, Punjab, Pakistan." Lahore Garrison University Journal of Life Sciences 5, no. 04 (2021): 270–81. http://dx.doi.org/10.54692/lgujls.2021.0504190.

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The goal of the present research was to figure out the prevalence and risk factors of coccidiosis in goats and sheep in Dera Ghazi Khan. For this 752 (goats=376; sheep=376) fecal specimens were obtained, and were analyzed by coprological examination. The prevalence of coccidiosis in sheep (52.92 %) was significantly higher (P<0.05) than the goats (44.41 %). In females, infection with Eimeria was significantly higher (P<0.05) as compared to male animals. Coccidiosis was significantly more common (P<0.05) in sheep and goats aged ≤6 months compared to sheep and goats older than 6 months

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Hijazeen, Zaidoun S., Zuhair Bani Ismail, and Ahmad M. Al-Majali. "Prevalence and risk factors of some arthropod-transmitted diseases in cattle and sheep in Jordan." January-2020 13, no. 1 (2020): 201–5. http://dx.doi.org/10.14202/vetworld.2020.201-205.

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Aim: The objectives of this study were to determine the prevalence and associated risk factors of bluetongue virus (BTV) in sheep and bovine ephemeral fever virus (BEFV) in dairy cattle in Jordan. Materials and Methods: A simple randomized study was designed to collect 600 serum samples from sheep and 300 serum samples from dairy cattle located in the Northwestern parts of Jordan. In addition, data regarding farm management were collected using a pre-tested questionnaire through personal interview to determine potential risk factors. The seroprevalences of BEF and BTVs were determined using se

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Heidari, Razieh, Vahid Noaman, and Hedieh Jafari. "Prevalence, Risk Factors, and Molecular Epidemiology of Anaplasma phagocytophilum in Sheep Raising in Khuzestan Province, Iran." Iranian Journal of Veterinary Medicine 18, no. 02 (2024): 233–42. http://dx.doi.org/10.32598/ijvm.18.2.1005347.

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Background: Anaplasma sp. is a blood protozoon that causes economic damage to the livestock industry. Therefore, studying this disease’s epidemiology and distribution pattern in different regions is essential. Objectives: This study aimed to investigate the variety of infections of the Anaplasma sp. in the sheep population of Khuzestan Province in Iran. Methods: A total of 200 sheep blood samples were randomly collected and examined using specific nested polymerase chain reaction (nPCR) based on the 16S rRNA gene. Results: The prevalence of Anaplasma phagocytophilum was 17%, and infected sheep

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Al-Momani, Waleed, Robin R.A.J. Nicholas, and Mahmoud N. Abo-Shehada. "Seroprevalence and risk factors of Mycoplasma capricolum subsp. capricolum among small ruminants in northern Jordan." Current Research in Microbiology and Infection 2, no. 1 (2021): 14–20. http://dx.doi.org/10.31559/crmi2021.2.1.3.

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During 2002-2003 the seroprevalence of Mycoplasma capricolum subsp. capricolum was studied among 104 small ruminant’s flocks (18 sheep, 27 goat and 59 mixed flocks) in northern Jordan. At least 5 serum samples/flock were tested using iELISA test. The true flock-level seroprevalences of Mycoplasma capricolum subsp. capricolum were 56%, 39%, 28% in small ruminant (sheep and goats), sheep and goats respectively. There was no significant difference (X2 = 2, d.f. =1, p = 0.15) between seroprevalences in sheep and goats at the flock level. A total of 29 variables including production and health mana

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Ma, Jian-Gang, Xiao-Xuan Zhang, Wen-Bin Zheng, et al. "Seroprevalence and Risk Factors of Bluetongue Virus Infection in Tibetan Sheep and Yaks in Tibetan Plateau, China." BioMed Research International 2017 (2017): 1–5. http://dx.doi.org/10.1155/2017/5139703.

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Bluetongue (BT), caused by bluetongue virus (BTV), is an arthropod-borne viral disease in ruminants. However, information about BTV infection in yaks in China is limited. Moreover, no such data concerning BTV in Tibetan sheep is available. Therefore, 3771 serum samples were collected from 2187 Tibetan sheep and 1584 yaks between April 2013 and March 2014 from Tibetan Plateau, western China, and tested for BTV antibodies using a commercially available ELISA kit. The overall seroprevalence of BTV was 17.34% (654/3771), with 20.3% (443/2187) in Tibetan sheep and 13.3% (211/1584) in yaks. In the T

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CABALLERO-ORTEGA, H., J. M. PALMA, L. J. GARCÍA-MÁRQUEZ, A. GILDO-CÁRDENAS, and D. CORREA. "Frequency and risk factors for toxoplasmosis in ovines of various regions of the State of Colima, Mexico." Parasitology 135, no. 12 (2008): 1385–89. http://dx.doi.org/10.1017/s0031182008004873.

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SUMMARYInfection of ewes byToxoplasma gondiimay induce abortions, thus it has consequences for sheep production. Colima, Western State of Mexico, has favourable climatic conditions for transmission and both domestic and wild cats live there. The aim of this study was to determine the frequency of specific antibodies in sheep from the coast, a mountain, and a hill of Colima. Serum samples from 351 sheep were tested by a previously standardized indirect ELISA. The frequency of infection was estimated and the farm location and flock size, as well as the animals' age and sex were analysed as risk

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Abdulhameed, Mohanad Faris, Moaed Hanoon Sayhood, Ali Balbool Aldeewan, and Tareq Hadi Srayyih. "Assessment of Seroprevalence and the Risk Factors of Sheep Brucellosis in Basrah (Southern Iraq): A Challenge to Prospectively Control Brucellosis." Journal of Pure and Applied Microbiology 14, no. 4 (2020): 2543–54. http://dx.doi.org/10.22207/jpam.14.4.30.

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Brucellosis is one of the most important foodborne infectious diseases distributed widely in low- and middle-income countries. The current study was carried out to investigate the prevalence and risk factors that influence the distribution of Brucella in sheep. A structured questionnaire was prepared and introduced to a total of 60 resident owners from five counties, and 400 sheep blood samples were randomly collected from the selected herds. The sera of isolated sheep were tested for Brucella spp. using the Rose Bengal Test (RBT). A univariable and multivariable logistic regression analysis w

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Sadeghi Dehkordi, Zainab, Ali Mahmoudi, Ali Saeghinasab, and Gamal Gharekhani. "Epidemiology and Risk Factors Associated with Zoonotic Ectoparasite Infestation Among Human and Small Ruminants in Sanandaj, West Iran." Avicenna Journal of Clinical Microbiology and Infection 9, no. 4 (2022): 179–82. http://dx.doi.org/10.34172/ajcmi.2022.3426.

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Background: Ectoparasites in domestic animals (sheep and goats) play important roles in transmitting the widest range of pathogens and can induce considerable economic losses in the animal husbandry industry. This study was undertaken to evaluate the prevalence and species’ variation of ectoparasites in the sheep and goats and its risk factors in Sanandaj, Kurdistan province, western Iran. Methods: The ectoparasites of 4576 animals; that is, 1954 sheep (416+1538) and 2622 goats (1084+1538) were collected in the abattoir and different rural regions (N=32) of Sanandaj. Determination of ectoparas

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Tozzo, S. R., E. M. Mkupasi, S. I. Kimera, M. L. Kabululu, and H. E. Nonga. "Seroprevalence and risk factors for peste des petits ruminants in goats and sheep in selected districts of Tanzania." Tanzania Veterinary Journal 39, no. 1 (2024): 13–23. https://doi.org/10.4314/tvj.v39i1.2.

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Peste des petits ruminants (PPR) is a highly contagious and devastating viral disease of goats and sheep caused by Peste des petits ruminants virus (PPRV). Despite of its impact on the livelihood of rural African communities, insufficient epidemiological information hampers the implementation of effective PPR control strategies. This study was carried out to determine seroprevalence and risk factors for PPR infection in sheep and goats in Longido, Simanjiro, Ngorongoro, Monduli, Kongwa and Mlele districts using a competitive Enzyme–Linked Immunosorbent Assay and questionnaire to detect PPR ant

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Attia, Mostafa M. M., Hassan Y. A. H. Mahmoud, Alsagher O. Ali, and Ragab M. Fereig. "Coxiella burnetiid seroprevalence, risk factors, and health hazards in sheep and goats in Upper Egypt." German Journal of Veterinary Research 4, no. 1 (2024): 23–31. http://dx.doi.org/10.51585/gjvr.2024.1.0069.

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Query fever (Q fever) or coxiellosis is a serious bacterial infection caused by Coxiella (C.) burnetii and affects various animals and humans. Clinically, Q fever ranges from various degrees of fever to abortion, either in infected animals or humans. Such infection is especially important in cattle and small ruminants industry, particularly sheep and goats. Thus, the current study aimed to recognize the prevalence of specific antibodies against C. burnetii in serum samples collected from sheep and goats in Sohag governorate, Upper Egypt, using a commercially available enzyme-linked immunosorbe

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Gelasakis, Kalogianni, and Bossis. "Aetiology, Risk Factors, Diagnosis and Control of Foot-Related Lameness in Dairy Sheep." Animals 9, no. 8 (2019): 509. http://dx.doi.org/10.3390/ani9080509.

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During the last twenty years, considerable research efforts have recognized the consequences of foot‐related lameness primarily in cattle, and meat and wool sheep. Despite the lack of extensive epidemiological studies, field observations and isolated research reports in dairy sheep have suggested that the problem might be more severe in semi-intensive and intensive farming systems. Footrot, contagious ovine digital dermatitis, ovine interdigital dermatitis, white line disease, and pedal joint abscess are the most common causes of foot-related lameness. Dichelobacter nodosus, Fusobacterium necr

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Horton, B. J., R. Corkrey, J. Smith, J. Greeff, and L. J. E. Karlsson. "Modelling of breech strike risk and protective efficacy of mulesing in adult Merino sheep." Animal Production Science 60, no. 8 (2020): 1051. http://dx.doi.org/10.1071/an18488.

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Context Mulesing provides a high degree of protection against beech strike, but wool producers need to be able to predict the level of risk of flystrike if they cease mulesing. Aims To use data from trials of mulesed and unmulesed sheep to estimate the distribution of adult breech scores (wrinkle, breech cover and dag) from mean flock values, and use those scores to estimate the risk of breech strike in Merino sheep flocks. Methods Breech scores and breech strike from flocks with comparable mulesed and unmulesed sheep were examined using logistic functions to relate breech scores in mulesed sh

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