19 results on '"domestic goats"'
Search Results
2. Development of a Recombinase Polymerase Amplification Assay for Schistosomiasis Japonica Diagnosis in the Experimental Mice and Domestic Goats.
- Author
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Guo, Qinghong, Zhou, Kerou, Chen, Cheng, Yue, Yongcheng, Shang, Zheng, Zhou, Keke, Fu, Zhiqiang, Liu, Jinming, Lin, Jiaojiao, Xia, Chenyang, Tang, Wenqiang, Cong, Xiaonan, Sun, Xuejun, and Hong, Yang
- Subjects
GOATS ,SCHISTOSOMIASIS ,GENE amplification ,RECOMBINASES ,SENSITIVITY & specificity (Statistics) ,HAEMONCHUS contortus - Abstract
Although the prevalence of schistosomiasis japonica has declined gradually in China, more accurate and sensitive diagnostic methods are urgently needed for the prevention and control of this disease. Molecular diagnostic methods are advantageous in terms of sensitivity and specificity, but they are time-consuming and require expensive instruments and skilled personnel, which limits their application in low-resource settings. In this study, an isothermal DNA amplification assay and recombinase polymerase amplification (RPA) combined with lateral flow dipstick (LFD) were set up. It was used to detect S. japonicum infections in experimental mice and domestic goats by amplifying a specific DNA fragment of S. japonicum. The lower limit of detection for the LFD-RPA assay was evaluated using dilutions of plasmid containing the target sequence. Cross-reactivity was evaluated using genomic DNA from eight other parasites. The effectiveness of the LFD-RPA assay was verified by assessing 36 positive plasma samples and 36 negative plasma samples from mice. The LFD-RPA assay and real-time PCR were also used to assess 48 schistosomiasis japonica-positive plasma samples and 53 negative plasma samples from goats. The LFD-RPA assay could detect 2.6 femtogram (fg) of S. japonicum target DNA (~39 fg genomic DNA of S. japonicum), only 10-fold less sensitive than real-time PCR assay. There was no cross-reactivity with DNA from the other eight parasites, such as Haemonchus contortus and Spirometra. The whole amplification process could be completed within 15 min at 39°C, and the results can be observed easily using the LFD. The sensitivity and specificity of the LFD-RPA assay were 97.22% (35/36, 95% CI, 85.47%–99.93%) and 100% (36/36, 95% CI, 90.26%–100%) in mice, and 93.75% (45/48, 95% CI, 82.80%–98.69%) and 100% (53/53, 95% CI, 93.28%–100%) in goats. By comparison, the sensitivity and specificity of real-time PCR were 100% (36/36, 95% CI, 90.26%–100%) and 100% (36/36, 95% CI, 90.26%–100%) for mice, and 97.92% (47/48, 95% CI, 88.93%–99.95%) and 100% (53/53, 95% CI, 93.28%–100%) for goats. The LFD-RPA assay exhibits high sensitivity and specificity for the diagnosis of schistosomiasis japonica, and it is an alternative method for diagnosis schistosomiasis japonica in low resource setting. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
3. Development of a Recombinase Polymerase Amplification Assay for Schistosomiasis Japonica Diagnosis in the Experimental Mice and Domestic Goats
- Author
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Qinghong Guo, Kerou Zhou, Cheng Chen, Yongcheng Yue, Zheng Shang, Keke Zhou, Zhiqiang Fu, Jinming Liu, Jiaojiao Lin, Chenyang Xia, Wenqiang Tang, Xiaonan Cong, Xuejun Sun, and Yang Hong
- Subjects
schistosomiasis japonica ,recombinase polymerase amplification (RPA) ,real-time PCR ,diagnosis ,domestic goats ,Microbiology ,QR1-502 - Abstract
Although the prevalence of schistosomiasis japonica has declined gradually in China, more accurate and sensitive diagnostic methods are urgently needed for the prevention and control of this disease. Molecular diagnostic methods are advantageous in terms of sensitivity and specificity, but they are time-consuming and require expensive instruments and skilled personnel, which limits their application in low-resource settings. In this study, an isothermal DNA amplification assay and recombinase polymerase amplification (RPA) combined with lateral flow dipstick (LFD) were set up. It was used to detect S. japonicum infections in experimental mice and domestic goats by amplifying a specific DNA fragment of S. japonicum. The lower limit of detection for the LFD-RPA assay was evaluated using dilutions of plasmid containing the target sequence. Cross-reactivity was evaluated using genomic DNA from eight other parasites. The effectiveness of the LFD-RPA assay was verified by assessing 36 positive plasma samples and 36 negative plasma samples from mice. The LFD-RPA assay and real-time PCR were also used to assess 48 schistosomiasis japonica-positive plasma samples and 53 negative plasma samples from goats. The LFD-RPA assay could detect 2.6 femtogram (fg) of S. japonicum target DNA (~39 fg genomic DNA of S. japonicum), only 10-fold less sensitive than real-time PCR assay. There was no cross-reactivity with DNA from the other eight parasites, such as Haemonchus contortus and Spirometra. The whole amplification process could be completed within 15 min at 39°C, and the results can be observed easily using the LFD. The sensitivity and specificity of the LFD-RPA assay were 97.22% (35/36, 95% CI, 85.47%–99.93%) and 100% (36/36, 95% CI, 90.26%–100%) in mice, and 93.75% (45/48, 95% CI, 82.80%–98.69%) and 100% (53/53, 95% CI, 93.28%–100%) in goats. By comparison, the sensitivity and specificity of real-time PCR were 100% (36/36, 95% CI, 90.26%–100%) and 100% (36/36, 95% CI, 90.26%–100%) for mice, and 97.92% (47/48, 95% CI, 88.93%–99.95%) and 100% (53/53, 95% CI, 93.28%–100%) for goats. The LFD-RPA assay exhibits high sensitivity and specificity for the diagnosis of schistosomiasis japonica, and it is an alternative method for diagnosis schistosomiasis japonica in low resource setting.
- Published
- 2021
- Full Text
- View/download PDF
4. Maternal origins, population structure and demographic history of ten Chinese indigenous goat breeds from Yunnan.
- Author
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Li, Rong, Sun, Jianshu, Zhao, Yincheng, Xiao, Heng, and Chen, Shanyuan
- Subjects
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GOAT breeds , *MITOCHONDRIAL DNA , *GENE flow , *GOATS , *ANALYSIS of variance ,CHINESE history - Abstract
Yunnan as a frontier zone that connects China with South and Southeast Asia, has 11 well‐recognized goat breeds. However, the knowledge about maternal origins, population structure and demographic history of Chinese indigenous goats from Yunnan is limited. In this study, we analysed a 481‐bp fragment of first hypervariable segment (HVSI) of the mitochondrial DNA (mtDNA) control region sequences of 749 individuals from 10 Yunnan indigenous goat breeds, of which 556 sequences were newly determined. There were 110 polymorphic sites that defined 158 haplotypes among all sequences. The haplotype and nucleotide diversity of these breeds ranged from 0.782 ± 0.079 to 0.982 ± 0.015 and from 0.028 ± 0.003 to 0.043 ± 0.005, respectively. Phylogenetic analysis identified two lineages A and B, of which the lineage A had higher frequency (68.1%) and distributed in all Yunnan breeds. We combined previously reported sequences with our sequences belonging to the lineage B and detected two subclades B1 and B2, in which the B1 subclade shared individuals from Eastern Asia, Southeast Asia and Southern Asia. Given higher level of diversity and more unique haplotypes, the B2 subclade probably originated from Southwestern China. The haplotype network, analysis of molecular variance (AMOVA) and a Mantel test revealed no significant phylogeographic structuring among Yunnan goat breeds. This can be explained by high gene flow and genetic admixture among these breeds from different geographic regions in Yunnan. Additionally, both the lineages A and B reflected different demographic histories. This study will provide a scientific basis for the conservation and utilization of Yunnan indigenous goats. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
5. Complete mitochondrial genomes of Karchaev goat (Capra hircus)
- Author
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Andrey N. Rodionov, Arsen V. Dotsev, Oleg Y. Fomenko, Neckruz F. Bakoev, Tatiana E. Deniskova, Alexey V. Shakhin, Vugar A. Bagirov, Elisabeth Kunz, Ivica Medugorac, Stefan Krebs, Gottfried Brem, and Natalia A. Zinovieva
- Subjects
domestic goats ,caprinae ,mitogenome ,haplogroup ,Genetics ,QH426-470 - Abstract
Karachaev goat (Capra hircus) is a local breed from North-Caucasus region, Russia. Here we present complete mitochondrial genome of Karachaev goat from the republic of Karachaevo-Cherkessia, Russia. The length of the studied sequence was 16,624 bp in size. It was shown that the studied specimen belonged to haplogroup A.
- Published
- 2020
- Full Text
- View/download PDF
6. Risk of pathogen spillover to bighorn sheep from domestic sheep and goat flocks on private land
- Author
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Laura M. Heinse, Linda H. Hardesty, and Richard B. Harris
- Subjects
bighorn sheep ,disease ,domestic goats ,domestic sheep ,landowner attitudes ,Mycoplasma ovipneumoniae ,General. Including nature conservation, geographical distribution ,QH1-199.5 - Abstract
ABSTRACT Bighorn sheep (Ovis canadensis) across North America have suffered population losses due to polymicrobial pneumonia typically initiated by spillover events of bacteria from domestic sheep and goats. Because vaccination or treatment of individual animals remains an elusive goal and pneumonia often persists in bighorn herds for years or decades following infection, preventing contact between domestic and wild animals is widely accepted as the best prophylactic. For the past decade, most management efforts have focused on the risks associated with commercial sheep grazing on public lands; less attention has been paid to risks to bighorns from small flocks of domestic sheep and goats managed entirely on private land. We surveyed owners of 40 sheep or goat flocks located near bighorn sheep herds in central and southeastern Washington, USA, during 2014 and 2015, to better understand their knowledge level, management practices, and willingness to reduce risks. Over one‐third of sheep or goat owners had no knowledge of the potential for pathogen spillover to bighorns, but all were interested in reducing risk of interacting with bighorns, particularly by options that did not restrict their autonomy. We also sampled nasal mucosae of 137 animals in 24 flocks for presence of Mycoplasma ovipneumoniae, the bacterium most closely associated with bighorn pneumonia. M. ovipneumoniae was detected in 37.5% of sheep or goat flocks sampled, and animals had escaped their enclosures in 78% of these. Physical contact, and thus pathogen spillover from domestic sheep or goats living in small, private flocks in close proximity to bighorns is clearly a risk. We provide recommendations to agency staff on identifying, prioritizing and testing small herds, and then working with owners to reduce the risk of pathogen spillover. © 2016 The Wildlife Society.
- Published
- 2016
- Full Text
- View/download PDF
7. PHYLOGENETIC ANALYSIS OF BLACK BENGAL AND JAMUNAPARI GOATS IN BANGLADESH BASED ON PARTIAL SEQUENCE OF CYTOCHROME B GENE.
- Author
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Chowdhury, S. M. Z. H., Mahmud, M. S., Islam, M. R., and Nazir, K. H. M. N. H.
- Subjects
CYTOCHROME b ,GOAT breeds ,GOAT diseases ,GOATS ,MITOCHONDRIAL DNA ,NUCLEOTIDE sequence ,POLYMERASE chain reaction - Abstract
Goats, among the livestock species, are considered the most prolific ruminant especially under callous climatic conditions. The aim of the present study was to depict the current phylogenetic status and genetic diversities of Black Bengal (BBG) and Jamunapari goat of Bangladesh and the world. Cytochrome b (cytb) gene (1140 bp) of mitochondrial DNA of Black Bengal goats (Capra hircus) was amplified by Polymerase Chain Reaction (PCR) for the first time in Bangladesh. The sequence from BBG had no nucleotide (nt) difference and 100% homology with the BBG (C. hircus) of India and also the goats (C. hircus) from China (Yangtze River Delta White Goat), Thailand (Wild Cervidae), Japan (Bezoar goat) and South Africa (Domestic goat). The sequence had 1-5 nt differences and 99% homology with the goats (C. hircus) from China, Thailand and Japan (other goats), and also with the goats (C. hircus) from Malaysia, South Korea, France, Italy, Pakistan, Slovenia, Switzerland and USA. Phylogenetic tree constructed with Black Bengal Goat (BBG-K-2) and Jamunapari goats (SG-1) of Bangladesh with cytochrome b nucleotide sequences were closely related to China-HM7. China-YP xj46, Pakistan-Lineage C1, Pakistan-Lineage C2, Slovenia-ChSo1, Switzerland-ChTo2992 and shared 98.8% to 99% and 98.3% to 98.6% similarity, respectively and 1-1.2% and 1.4 to 1.7% genetic distance, respectively. Based on Ctb gene Sequence collected from Bangladeshi Black Bengal Goats (BBG-K-2) and Jamunapari goats (SG-1) that were closely related and shared with the same genetic lineage of China HM18 and India-BBG-DQ073048, respectively, suggesting a common origin. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
8. Pneumonia in bighorn sheep: Risk and resilience.
- Author
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Cassirer, E. Frances, Manlove, Kezia R., Almberg, Emily S., Kamath, Pauline L., Cox, Mike, Wolff, Peregrine, Roug, Annette, Shannon, Justin, Robinson, Rusty, Harris, Richard B., Gonzales, Ben J., Plowright, Raina K., Hudson, Peter J., Cross, Paul C., Dobson, Andrew, and Besser, Thomas E.
- Subjects
- *
BIGHORN sheep , *PNEUMONIA prevention , *SHEEP , *ECOLOGY , *RESPIRATORY diseases , *DISEASES , *MANAGEMENT - Abstract
ABSTRACT Infectious disease contributed to historical declines and extirpations of bighorn sheep ( Ovis canadensis) in North America and continues to impede population restoration and management. Reports of pneumonia outbreaks in free-ranging bighorn sheep following contact with domestic sheep have been validated by the results of 13 captive commingling experiments. However, ecological and etiological complexities still hinder our understanding and control of respiratory disease in wild sheep. In this paper, we review the literature and summarize recent data to present an overview of the biology and management of pneumonia in bighorn sheep. Many factors contribute to this population-limiting disease, but a bacterium ( Mycoplasma ovipneumoniae) host-specific to Caprinae and commonly carried by healthy domestic sheep and goats, appears to be a primary agent necessary for initiating epizootics. All-age epizootics are usually associated with significant population declines, but mortality rates vary widely and factors influencing disease severity are not well understood. Once introduced, M. ovipneumoniae can persist in bighorn sheep populations for decades. Carrier females may transmit the pathogen to their susceptible lambs, triggering fatal pneumonia outbreaks in nursery groups, which limit recruitment and slow or prevent population recovery. The demographic costs of disease persistence can be equal to or greater than the impacts of the initial epizootic. Strain typing suggests that spillover of M. ovipneumoniae into bighorn sheep populations from domestic small ruminants is ongoing and that consequences of spillover are amplified by movements of infected bighorn sheep across populations. Therefore, current disease management strategies focus on reducing risk of spillover from reservoir populations of domestic sheep and goats and on limiting transmission among bighorn sheep. A variety of techniques are employed to prevent contacts that could lead to transmission, including limiting the numbers and distribution of both wild and domestic species. No vaccine or antibiotic treatment has controlled infection in domestic or wild sheep and to date, management actions have been unsuccessful at reducing morbidity, mortality, or disease spread once a bighorn sheep population has been exposed. More effective strategies are needed to prevent pathogen introduction, induce disease fadeout in persistently infected populations, and promote population resilience across the diverse landscapes bighorn sheep inhabit. A comprehensive examination of disease dynamics across populations could help elucidate how disease sometimes fades out naturally and whether population resilience can be increased in the face of infection. Cross-jurisdictional adaptive management experiments and transdisciplinary collaboration, including partnerships with members of the domestic sheep and goat community, are needed to speed progress toward sustainable solutions to protect and restore bighorn sheep populations. © 2017 The Wildlife Society. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
9. Genetic diversity and patterns of population structure in Creole goats from the Americas.
- Author
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Ginja, C., Gama, L. T., Martínez, A., Sevane, N., Martin‐Burriel, I., Lanari, M. R., Revidatti, M. A., Aranguren‐Méndez, J. A., Bedotti, D. O., Ribeiro, M. N., Sponenberg, P., Aguirre, E. L., Alvarez‐Franco, L. A., Menezes, M. P. C., Chacón, E., Galarza, A., Gómez‐Urviola, N., Martínez‐López, O. R., Pimenta‐Filho, E. C., and da Rocha, L. L.
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GOAT breeds , *GOAT genetics , *BIODIVERSITY , *MICROSATELLITE repeats , *MAMMAL populations - Abstract
Biodiversity studies are more efficient when large numbers of breeds belonging to several countries are involved, as they allow for an in-depth analysis of the within- and between-breed components of genetic diversity. A set of 21 microsatellites was used to investigate the genetic composition of 24 Creole goat breeds (910 animals) from 10 countries to estimate levels of genetic variability, infer population structure and understand genetic relationships among populations across the American continent. Three commercial transboundary breeds were included in the analyses to investigate admixture with Creole goats. Overall, the genetic diversity of Creole populations (mean number of alleles = 5.82 ± 1.14, observed heterozygosity = 0.585 ± 0.074) was moderate and slightly lower than what was detected in other studies with breeds from other regions. The Bayesian clustering analysis without prior information on source populations identified 22 breed clusters. Three groups comprised more than one population, namely from Brazil (Azul and Graúna; Moxotó and Repartida) and Argentina (Long and shorthair Chilluda, Pampeana Colorada and Angora-type goat). Substructure was found in Criolla Paraguaya. When prior information on sample origin was considered, 92% of the individuals were assigned to the source population (threshold q ≥ 0.700). Creole breeds are well-differentiated entities (mean coefficient of genetic differentiation = 0.111 ± 0.048, with the exception of isolated island populations). Dilution from admixture with commercial transboundary breeds appears to be negligible. Significant levels of inbreeding were detected (inbreeding coefficient > 0 in most Creole goat populations, P < 0.05). Our results provide a broad perspective on the extant genetic diversity of Creole goats, however further studies are needed to understand whether the observed geographical patterns of population structure may reflect the mode of goat colonization in the Americas. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
10. Mycobacterium tuberculosis complex detection in rural goat herds in South Africa using Bayesian latent class analysis.
- Author
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Cooke, Deborah M., Goosen, Wynand J., Burgess, Tristan, Witte, Carmel, and Miller, Michele A.
- Subjects
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MYCOBACTERIUM bovis , *MYCOBACTERIUM tuberculosis , *GOATS , *INTERFERON gamma , *ANIMAL herds , *TUBERCULIN test , *DOMESTIC animals - Abstract
Animal tuberculosis affects a wide range of domestic and wild animal species, including goats (Capra hircus). In South Africa, M ycobacterium tuberculosis complex (MTBC) testing and surveillance in domestic goats is not widely applied, potentially leading to under recognition of goats as a potential source of M. bovis spread to cattle as well as humans and wildlife. The aim of this study was to estimate diagnostic test performance for four assays and determine whether M. bovis infection was present in goats sharing communal pastures with M. bovis positive cattle in the Umkhanyakude district of Northern Zululand, KwaZulu Natal. In 2019, 137 M. bovis -exposed goats were screened for MTBC infection with four diagnostic tests: the in vivo single intradermal comparative cervical tuberculin test (SICCT), in vitro QuantiFERON®-TB Gold (QFT) bovine interferon-gamma release assay (IGRA), QFT bovine interferon gamma induced protein 10 (IP-10) release assay (IPRA), and nasal swabs tested with the Cepheid GeneXpert® MTB/RIF Ultra (GXU) assay for detection of MTBC DNA. A Bayesian latent class analysis was used to estimate MTBC prevalence and diagnostic test sensitivity and specificity. Among the 137 M. bovis -exposed goats, positive test results were identified in 15/136 (11.0%) goats by the SICCT; 4/128 (3.1%) goats by the IPRA; 2/128 (1.6%) goats by the IGRA; and 26/134 (19.4%) nasal swabs by the GXU. True prevalence was estimated by our model to be 1.1%, suggesting that goats in these communal herds are infected with MTBC at a low level. Estimated posterior means across the four evaluated assays ranged from 62.7% to 80.9% for diagnostic sensitivity and from 82.9% to 97.9% for diagnostic specificity, albeit estimates of the former (diagnostic sensitivity) were dependent on model assumptions. The application of a Bayesian latent class analysis and multiple ante-mortem test results may improve detection of MTBC, especially when prevalence is low. Our results provide a foundation for further investigation to confirm infection in communal goat herds and identify previously unrecognized sources of intra- and inter-species transmission of MTBC. • Positive MTBC test results were identified in goats using 4 MTBC diagnostic assays. • A Bayesian latent class analysis estimated MTBC prevalence and test performance. • Prevalence was estimated at 1.1%. • Diagnostic sensitivity ranged from 62.7% to 80.9%; specificity from 82.9% to 97.9%. • MTBC in communal goat herds presents risks to both human and animal health. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
11. Risk of pathogen spillover to bighorn sheep from domestic sheep and goat flocks on private land.
- Author
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Heinse, Laura M., Hardesty, Linda H., and Harris, Richard B.
- Subjects
BIGHORN sheep ,GOATS ,LANDOWNERS ,MYCOPLASMA ,PNEUMONIA ,ATTITUDE (Psychology) - Abstract
ABSTRACT Bighorn sheep ( Ovis canadensis) across North America have suffered population losses due to polymicrobial pneumonia typically initiated by spillover events of bacteria from domestic sheep and goats. Because vaccination or treatment of individual animals remains an elusive goal and pneumonia often persists in bighorn herds for years or decades following infection, preventing contact between domestic and wild animals is widely accepted as the best prophylactic. For the past decade, most management efforts have focused on the risks associated with commercial sheep grazing on public lands; less attention has been paid to risks to bighorns from small flocks of domestic sheep and goats managed entirely on private land. We surveyed owners of 40 sheep or goat flocks located near bighorn sheep herds in central and southeastern Washington, USA, during 2014 and 2015, to better understand their knowledge level, management practices, and willingness to reduce risks. Over one-third of sheep or goat owners had no knowledge of the potential for pathogen spillover to bighorns, but all were interested in reducing risk of interacting with bighorns, particularly by options that did not restrict their autonomy. We also sampled nasal mucosae of 137 animals in 24 flocks for presence of Mycoplasma ovipneumoniae, the bacterium most closely associated with bighorn pneumonia. M. ovipneumoniae was detected in 37.5% of sheep or goat flocks sampled, and animals had escaped their enclosures in 78% of these. Physical contact, and thus pathogen spillover from domestic sheep or goats living in small, private flocks in close proximity to bighorns is clearly a risk. We provide recommendations to agency staff on identifying, prioritizing and testing small herds, and then working with owners to reduce the risk of pathogen spillover. © 2016 The Wildlife Society. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
12. Field evaluation of the tuberculin skin test for the detection of Mycobacterium tuberculosis complex infection in communal goats (Capra hircus) in KwaZulu-Natal, South Africa.
- Author
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Cooke, Deborah M., Goosen, Wynand J., Witte, Carmel, and Miller, Michele A.
- Subjects
- *
TUBERCULIN test , *GOATS , *MYCOBACTERIUM tuberculosis , *SKIN tests , *AFRICAN buffalo , *DAIRY cattle - Abstract
In South Africa, animal tuberculosis (TB) control programs predominantly focus on domestic cattle and African buffaloes (Syncerus caffer) despite increasing global reports of tuberculosis in goats (Capra hircus). Left undetected, Mycobacterium tuberculosis complex (MTBC) infected goats may hinder TB eradication efforts in cattle and increase zoonotic risk to humans. Since the publication of animal TB testing guidelines in 2018, prescribing the use of the tuberculin skin test (TST) for goats in South Africa by the Department of Agriculture, Land Reform, and Rural Development (DALRRD), there have been no published reports of any field application of the prescribed test criteria in goat herds. Therefore, this study aimed to evaluate the performance of these DALRRD guidelines using the single intradermal cervical tuberculin test (SICT) and the single intradermal comparative cervical tuberculin test (SICCT). Between October and December 2020, 495 goats from communal pastures of Kwa-Zulu Natal (KZN), where M. bovis infection has been identified in cattle and where cattle and goats cohabitate, were tested using the SICT and SICCT (M. bovis -exposed group). Additionally, 277 goats from a commercial Saanen dairy herd, with no history of M. bovis , were also tested (M. bovis -unexposed group). Estimated apparent prevalence of TST positive goats was determined based on published test interpretation criteria as described by DALRRD. When proportions of test-positive goats were compared between different DALRRD criteria, the ≥ 4 mm cut-off criterion for the SICCT resulted in the lowest proportion of positive results in the presumably uninfected group (1/277 positive in the unexposed group). The apparent prevalence of TB in the exposed group was estimated at 3.0% (95% CI: 1.7–4.9%), which is similar to previous reports of M. bovis prevalence in cattle from this area (6%). The detection of a significantly greater proportion of SICCT positive goats in the M. bovis -exposed group compared to the unexposed group suggests that MTBC infection is present in this population. Further investigations should be undertaken, in conjunction with confirmatory molecular tests, mycobacterial culture, and advanced pathogen sequencing to establish whether MTBC infection in domestic goats is a true under-recognized threat to the eradication of animal TB in South Africa. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
13. Rumen protozoal diversity in the Spanish ibex (Capra pyrenaica hispanica) as compared with domestic goats (Capra hircus).
- Author
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de la Fuente, Gabriel, Belanche, Alejandro, Abecia, Leticia, Dehority, Burk A., and Fondevila, Manuel
- Subjects
ANIMAL diversity ,CILIATA ,RUMEN (Ruminants) ,RUMINANTS ,SPANISH ibex ,GOATS ,DENATURING gradient gel electrophoresis - Abstract
Abstract: Rumen protozoal diversity in the Spanish ibex (SI) was studied in males (n=4), females (n=7) and young (n=4) from the Maestrazgo (Spain) and contrasted with domestic goats (n=3; DG) of the same region. There were no differences among SI types in protozoal concentration or in the number of protozoal species. Only protozoa from the genus Entodinium were observed in SI (seven species), the highest numbers corresponding to E. damae, E. ovibos and E. parvum. DG harboured threefold more species than SI. Nine to 10 Entodinium spp. were observed, but E. ovibos was absent from the rumen of DG, and E. damae was in only one animal. E. caudatum (caudatum, dubardi and lobospinosum morphotypes) occurred in the highest percentage, and E. dubardi, E. exiguum and E. parvum were quite abundant. Four genera of the subfamily Diplodiniinae and the genera Isotricha and Dasytricha from the family Isotrichidae were detected in DG. Epidinium (two DG) and Ophryoscolex (one DG) were also observed. Denaturing gradient gel electrophoresis analysis agreed with microscopic classification, showing up to 8 and 16 bands in SI and DG samples, respectively. The three DG clustered together (similarity index over 0.84), and separately from SI (similarity index over 0.86), with only 0.58 similarity between host species. [Copyright &y& Elsevier]
- Published
- 2009
- Full Text
- View/download PDF
14. Genetic diversity of Chinese domestic goat based on the mitochondrial DNA sequence variation.
- Author
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Liu, Y.-P., Cao, S.-X., Chen, S.-Y., Yao, Y.-G., and Liu, T.-Z.
- Subjects
- *
MITOCHONDRIAL DNA , *ANIMAL genome mapping , *GENETIC markers , *DOMESTIC animal genetics , *ANIMAL population genetics , *VETERINARY genetics , *GENOTYPE-environment interaction , *ANIMAL variation - Abstract
The aim of this study was to characterize the genetic diversity of domestic goat in China. For this purpose, we determined the sequence of the mitochondrial DNA (mtDNA) control region in 72 individuals of the Yangtze River delta white goat, and reanalysed 723 published samples from 31 breeds/populations across China. All goat haplotypes were classified into four haplogroups (A–D) previously described. The phylogenetic pattern that emerged from the mtDNA control region sequence was confirmed by the analysis of the entire cytochrome b sequence of eight goats representative of the four haplogroups. It appeared that in Chinese domestic goat, haplogroups A and B were dominant and distributed in nearly all breeds/populations, while haplogroups C and D were only found in seven breeds/populations. Four breeds/populations contained all four haplogroups. When grouping the breeds/populations into five geographic groups based on their geographic distributions and ecological conditions, the southern pasturing area had the highest diversity whereas the northern farming area had the lowest diversity. 84.29% and 11.37% of the genetic variation were distributed within breeds and among breeds within the ecologically geographical areas, respectively; only 4% of genetic variation was observed among the five geographic areas. We speculate that the traditional seasonal pastoralism, the annual long-distance migrations that occurred in the past, and the commercial trade would account for the observed pattern by having favoured gene flows. [ABSTRACT FROM AUTHOR]
- Published
- 2009
- Full Text
- View/download PDF
15. Ixodid ticks infesting domestic goats in communal land areas of Zimbabwe.
- Author
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Hovea, T., Mukandia, R., Berea, M., Horak, I. G., and Latif, A. A.
- Subjects
- *
TICKS , *COMMONS , *DOMESTIC animal parasites , *GOATS , *SPECIES distribution , *RHIPICEPHALUS , *AGRICULTURALLY marginal lands - Abstract
The article discusses a study on the range of tick species that infect goats in the communal land areas owned by Zimbabwe. A total of 14 ixodid tick species was identified from the ticks collected from goats at five communal land areas: Chihota, Filabusi, Sanyati, Chirumhanzu, and Beitridge. The most abundant species identified were Rhipicephalus evertsi eversi and Rhipicephalus sp. (near R. punctatus), while the lesser number collected include Amblyomma marmoreum and Amblyomnna variegatum. Meanwhile, tick species identified to be present at each sampling site include Amblyomma hebraeum, Hyalomma truncatum, R. evertsi evertsi, and Rhipicephalus simus.
- Published
- 2008
16. Complete mitochondrial genomes of Karchaev goat (Capra hircus).
- Author
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Rodionov, Andrey N., Dotsev, Arsen V., Fomenko, Oleg Y., Bakoev, Neckruz F., Deniskova, Tatiana E., Shakhin, Alexey V., Bagirov, Vugar A., Kunz, Elisabeth, Medugorac, Ivica, Krebs, Stefan, Brem, Gottfried, and Zinovieva, Natalia A.
- Subjects
GOATS ,MITOCHONDRIA ,GENOMES - Abstract
Karachaev goat (Capra hircus) is a local breed from North-Caucasus region, Russia. Here we present complete mitochondrial genome of Karachaev goat from the republic of Karachaevo-Cherkessia, Russia. The length of the studied sequence was 16,624 bp in size. It was shown that the studied specimen belonged to haplogroup A. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
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17. Mitochondrial diversity and phylogeographic structure of Chinese domestic goats
- Author
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Chen, Shan-Yuan, Su, Yan-Hua, Wu, Shi-Fang, Sha, Tao, and Zhang, Ya-Ping
- Subjects
- *
GOATS , *MITOCHONDRIAL DNA , *PHYLOGEOGRAPHY , *NUCLEIC acids - Abstract
Abstract: China has numerous native domestic goat breeds, but so far there has been no extensive study on genetic diversity, population demographic history, and origin of Chinese goats. Here, we examined the genetic diversity and phylogeographic structure of Chinese domestic goats by determining a 481-bp fragment of the first hypervariable region of mitochondrial DNA (mtDNA) control region from 368 individuals representing 18 indigenous breeds. Phylogenetic analyses revealed that there were four mtDNA lineages (A–D) identified in Chinese goats, in which lineage A was predominant, lineage B was moderate, and lineages C and D were at low frequency. These results further support the multiple maternal origins of domestic goats. The pattern of genetic variation in goat mtDNA sequences indicated that the two larger lineages A and B had undergone population expansion events. In a combined analysis of previously reported sequences and our sequences belonging to lineage B, we detected two subclades, in which one was unique to eastern Asia and another was shared between eastern and southern Asia. A larger genetic variation in eastern Asia than southern Asia and the pattern of phylogeographic variation in lineage B suggest that at least one subclade of lineage B originated from eastern Asia. There was no significant geographical structuring in Chinese goat populations, which suggested that there existed strong gene flow among goat populations caused by extensive transportation of goats in history. [Copyright &y& Elsevier]
- Published
- 2005
- Full Text
- View/download PDF
18. Complete mitochondrial genomes of Karchaev goat ( Capra hircus ).
- Author
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Rodionov AN, Dotsev AV, Fomenko OY, Bakoev NF, Deniskova TE, Shakhin AV, Bagirov VA, Kunz E, Medugorac I, Krebs S, Brem G, and Zinovieva NA
- Abstract
Karachaev goat ( Capra hircus ) is a local breed from North-Caucasus region, Russia. Here we present complete mitochondrial genome of Karachaev goat from the republic of Karachaevo-Cherkessia, Russia. The length of the studied sequence was 16,624 bp in size. It was shown that the studied specimen belonged to haplogroup A., Competing Interests: No potential conflict of interest was reported by the author(s)., (© 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.)
- Published
- 2020
- Full Text
- View/download PDF
19. Risk of Pathogen Spillover to Bighorn Sheep from Domestic Sheep and Goat Flocks on Private Land
- Published
- 2016
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