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1. Multiple variants of African swine fever virus circulating in Vietnam

Author:
Van Tam Nguyen; Ki-hyun Cho; Nguyen Tuan Anh Mai; Jee-Yong Park; Thi Bich Ngoc Trinh; Min-Kyung Jang; Thi Thu Huyen Nguyen; Xuan Dang Vu; Thi Lan Nguyen; Van Diep Nguyen; Aruna Ambagala; Yong-Joo Kim; Van Phan Le
Source:
Archives of virology 2022 v.167 no.4 pp. 1137-1140
ISSN:
0304-8608
Subject:
African swine fever; African swine fever virus; swine,   etc   ; genes; genotype; serotypes; virology; viruses; Vietnam;     Show all 9 Subjects
Abstract:
... African swine fever (ASF) is a contagious and deadly viral disease affecting swine of all ages. ASF was first reported in Vietnam in February 2019, and it is now considered endemic in Vietnam. In this study, 122 ASF-positive samples collected from domestic pigs in 28 different provinces of northern, central, and southern Vietnam during outbreaks in 2019–2021 were genetically characterized. The fin ...
DOI:
10.1007/s00705-022-05363-4

2. Development of a recombinant pB602L-based indirect ELISA assay for detecting antibodies against African swine fever virus in pigs

Author:
Peng-fei WANG; Ming WANG; Zhi-bin SHI; Zhen-zhao SUN; Li-li WEI; Zai-si LIU; Shi-da WANG; Xi-jun HE; Jing-fei WANG
Source:
Journal of integrative agriculture 2022 v.21 no.3 pp. 819-825
ISSN:
2095-3119
Subject:
African swine fever; African swine fever virus; Classical swine fever virus,   etc   ; Suid alphaherpesvirus 1; agriculture; antibodies; antigens; blood serum; cross reaction; enzyme-linked immunosorbent assay; monitoring; swine; vaccines; China;     Show all 14 Subjects
Abstract:
... African swine fever (ASF), caused by the African swine fever virus (ASFV), is a devastating disease of domestic and wild pigs. There is no effective vaccine, and the control of the disease relies mainly on surveillance and early detection of infected pigs. Previously, serological assays, such as ELISA, have been developed mainly based on recombinant structural viral proteins of ASFV, including p72 ...
DOI:
10.1016/S2095-3119(21)63767-X

3. Antigenic and immunogenic properties of recombinant proteins consisting of two immunodominant African swine fever virus proteins fused with bacterial lipoprotein OprI

Author:
Guanglei Zhang; Wei Liu; Zhan Gao; Yanyan Chang; Sicheng Yang; Qian Peng; Sudan Ge; Bijing Kang; Junjun Shao; Huiyun Chang
Source:
Virology journal 2022 v.19 no.1 pp. 16
ISSN:
1743-422X
Subject:
African swine fever; African swine fever virus; swine,   etc   ; epitopes; immunogenicity; immunostimulants; industry; interleukin-2; lipoproteins; necrosis; neoplasms; subunit vaccines; virology; viruses;     Show all 14 Subjects
Abstract:
... BACKGROUND: African swine fever (ASF) is a highly fatal swine disease, which threatens the global pig industry. There is no commercially available vaccine against ASF and effective subunit vaccines would represent a real breakthrough. METHODS: In this study, we expressed and purified two recombinant fusion proteins, OPM (OprI-p30-modified p54) and OPMT (OprI-p30-modified p54-T cell epitope), which ...
DOI:
10.1186/s12985-022-01747-9

4. Performance Characteristics of Real-Time PCRs for African Swine Fever Virus Genome Detection—Comparison of Twelve Kits to an OIE-Recommended Method

Author:
Jutta Pikalo; Tessa Carrau; Paul Deutschmann; Melina Fischer; Kore Schlottau; Martin Beer; Sandra Blome
Source:
Viruses 2022 v.14 no.2 pp. -
ISSN:
1999-4915
Subject:
African swine fever; African swine fever virus; swine production,   etc   ; laboratory diagnosis; markets; pandemic; prioritization; quantitative polymerase chain reaction; viral genome; Germany;     Show all 10 Subjects
Abstract:
... African swine fever (ASF) is a major threat to pig production, and real-time PCR (qPCR) protocols are an integral part of ASF laboratory diagnosis. With the pandemic spread of ASF, commercial kits have risen on the market. In Germany, the kits have to go through an approval process and thus, general validation can be assumed. However, they have never been compared to each other. In this study, 12 ...
DOI:
10.3390/v14020220

5. Subgrouping and analysis of relationships between classical swine fever virus identified during the 2018–2020 epidemic in Japan by a novel approach using shared genomic variants

Author:
Takehisa Yamamoto; Kotaro Sawai; Tatsuya Nishi; Katsuhiko Fukai; Tomoko Kato; Yoko Hayama; Yoshinori Murato; Yumiko Shimizu; Emi Yamaguchi
Source:
Transboundary and emerging diseases 2022 v.69 no.3 pp. 1166-1177
ISSN:
1865-1674
Subject:
Classical swine fever virus; swine,   etc   ; Ryukyu Archipelago; disease control; epigenome; farms; genomics; hog cholera; industry;     Show all 9 Subjects
Abstract:
... Classical swine fever (CSF) is a worldwide devastating disease of the pig industry caused by classical swine fever virus (CSFV). In September 2018, an outbreak of CSF occurred in Japan where the disease had been eradicated and was officially designated a CSF‐free country since 2015. Following the detection of the first 2018 case on a farm in Gifu Prefecture, the disease spread among both farm pigs ...
DOI:
10.1111/tbed.14076

6. Development and application of a colloidal-gold dual immunochromatography strip for detecting African swine fever virus antibodies

Author:
Ying Wan; Zhengwang Shi; Gaochaung Peng; Lijuan Wang; Juncong Luo; Yi Ru; Gaijing Zhou; Yuan Ma; Rui Song; Bo Yang; Liyan Cao; Hong Tian; Haixue Zheng
Source:
Applied microbiology and biotechnology 2022 v.106 no.2 pp. 799-810
ISSN:
0175-7598
Subject:
African swine fever; African swine fever virus; Classical swine fever virus,   etc   ; Porcine circovirus-2; antibody detection; antigens; biotechnology; blood serum; cross reaction; foot-and-mouth disease; immunoaffinity chromatography; porcine reproductive and respiratory syndrome; rapid methods; swine; vaccines; viruses;     Show all 16 Subjects
Abstract:
... African swine fever (ASF) is an acute and highly contagious infectious disease caused by the African swine fever virus (ASFV). Currently, there is no vaccine against ASF worldwide, and no effective treatment measures are available. For this reason, developing a simple, rapid, specific, and sensitive serological detection method for ASFV antibodies is crucial for the prevention and control of ASF. ...
DOI:
10.1007/s00253-021-11706-z

7. Diversity and potential genetic relationships amongst Brazilian Brachyspira hyodysenteriae isolates from cases of swine dysentery

Author:
José Paulo H. Sato; Amanda G.S. Daniel; Carlos A.G. Leal; David E.S.N. Barcellos; Roberto M.C. Guedes
Source:
Veterinary microbiology 2022 v.266 pp. 109369
ISSN:
0378-1135
Subject:
swine; swine dysentery,   etc   ; Brachyspira hyodysenteriae; databases; evolution; genetic variation; microbiology; multilocus sequence typing; population structure; Brazil;     Show all 10 Subjects
Abstract:
... The aim of this study was to evaluate genetic diversity, distribution, evolution and population structure of Brazilian Brachyspira hyodysenteriae strains isolated from swine. Multilocus Sequence Typing (MLST) analysis using seven housekeeping genes was applied to 46 isolates obtained from outbreaks of swine dysentery that occurred between 2011 and 2015 in the states of Minas Gerais, São Paulo, Mat ...
DOI:
10.1016/j.vetmic.2022.109369

8. The “Real Welfare” Scheme: Changes in UK Finishing Pig Welfare since the Introduction of Formal Welfare Outcome Assessment

Author:
Fanny Pandolfi; Claire Barber; Sandra Edwards
Source:
Animals 2022 v.12 no.5 pp. -
ISSN:
2076-2615
Subject:
swine,   etc   ; animal welfare; herds; tail;     Show all 4 Subjects
Abstract:
... Farm animal welfare is an increasingly important issue, leading to the need for an efficient methodology to deliver accurate benchmarking. The “Real Welfare” project developed a methodology based on regular recording of a limited number of animal-based measures, so-called welfare outcomes, which allows faster and easier on-farm assessment of finishing pig welfare. The objective of this paper is to ...
DOI:
10.3390/ani12050607

9. Development and characterization of recombinant ASFV CD2v protein nanoparticle-induced monoclonal antibody

Author:
Dongna Ren; Peiyang Ding; Siyuan Liu; Ning Zhang; Yilan Chen; Qingmei Li; Lu Fan; Zejie Chang; Gaiping Zhang
Source:
International journal of biological macromolecules 2022 v.209 pp. 533-541
ISSN:
0141-8130
Subject:
African swine fever; African swine fever virus,   etc   ; Norovirus; blood serum; epitopes; etiology; immunogenicity; monoclonal antibodies; pork industry; titration;     Show all 10 Subjects
Abstract:
... African swine fever (ASF) caused by African swine fever virus (ASFV) is becoming a serious threat to the swine industry worldwide. CD2v is a key pathogenic factor of ASFV and the protective antigen with low immunogenicity, whereas viral protein-based nanoparticles have advantages of precise assembly and high immunogenicity. In this study, the CD2v protein fused with Norovirus (NoV) P particle asse ...
DOI:
10.1016/j.ijbiomac.2022.03.069

10. Effect of mixing and feed batch sequencing on the prevalence and distribution of African swine fever virus in swine feed

Author:
Catherine Grace Elijah; Jessie D. Trujillo; Cassandra K. Jones; Taeyong Kwon; Charles R. Stark; Konner R. Cool; Chad B. Paulk; Natasha N. Gaudreault; Jason C. Woodworth; Igor Morozov; Carmina Gallardo; Jordan T. Gebhardt; Jürgen A. Richt
Source:
Transboundary and emerging diseases 2022 v.69 no.1 pp. 115-120
ISSN:
1865-1674
Subject:
African swine fever virus; swine,   etc   ; DNA; biosafety; diet; feed contamination; feed mills; genes; genomics; research institutions; risk; Kansas;     Show all 12 Subjects
Abstract:
... It is critical to have methods that can detect and mitigate the risk of African swine fever virus (ASFV) in potentially contaminated feed or ingredients bound for the United States. The purpose of this work was to evaluate feed batch sequencing as a mitigation technique for ASFV contamination in a feed mill, and to determine if a feed sampling method could identify ASFV following experimental inoc ...
DOI:
10.1111/tbed.14177

11. Genetic Characterization and Variation of African Swine Fever Virus China/GD/2019 Strain in Domestic Pigs

Author:
Xun Wang; Xiaoying Wang; Xiaoxiao Zhang; Sheng He; Yaosheng Chen; Xiaohong Liu; Chunhe Guo
Source:
Pathogens 2022 v.11 no.1 pp. -
ISSN:
2076-0817
Subject:
African swine fever; African swine fever virus,   etc   ; DNA; blood; farms; frameshift mutation; genetic variation; genotype; phylogeny; China; Estonia;     Show all 11 Subjects
Abstract:
... African swine fever (ASF) was first introduced into Northern China in 2018 and has spread through China since then. Here, we extracted the viral DNA from the blood samples from an ASF outbreak farm in Guangdong province, China and sequenced the whole genome. We assembled the full length genomic sequence of this strain, named China/GD/2019. The whole genome was 188,642 bp long (terminal inverted re ...
DOI:
10.3390/pathogens11010097

12. Evidence of viral survival in representative volumes of feed and feed ingredients during long‐distance commercial transport across the continental United States

Author:
Scott Dee; Apoorva Shah; Cassandra Jones; Aaron Singrey; Dan Hanson; Roy Edler; Gordon Spronk; Megan Niederwerder; Eric Nelson
Source:
Transboundary and emerging diseases 2022 v.69 no.1 pp. 149-156
ISSN:
1865-1674
Subject:
swine,   etc   ; RNA; bioassays; soybean meal; viruses;     Show all 5 Subjects
Abstract:
... The hypothesis that feed ingredients could serve as vehicles for the transport and transmission of viral pathogens was first validated under laboratory conditions. To bridge the gap from the laboratory to the field, this current project tested whether three significant viruses of swine could survive in feed ingredients during long‐distance commercial transport across the continental US. One‐metric ...
DOI:
10.1111/tbed.14057

13. Identification of lncRNAs involved in maternal‐to‐zygotic transition of in vitro‐produced porcine embryos by single‐cell RNA‐seq

Author:
Cai‐Xia Yang; Hao Liang; Zi‐Wei Wu; Li‐Jun Huo; Zhi‐Qiang Du
Source:
Reproduction in domestic animals 2022 v.57 no.1 pp. 111-122
ISSN:
0936-6768
Subject:
swine,   etc   ; blastomeres; embryogenesis; oocytes; sequence analysis;     Show all 5 Subjects
Abstract:
... Long non‐coding RNAs (lncRNAs) function through multiple tiers of molecular circuits and are vital to gamete maturation and early embryo development. However, in pig early embryos, identification and expression dynamics of lncRNAs remain less studied. Here, we systematically analysed the expression dynamics of lncRNAs based on our previously published single‐cell RNA‐seq data from pig mature oocyt ...
DOI:
10.1111/rda.14034

14. Dynamic network connectivity influences the spread of a sub‐lineage of porcine reproductive and respiratory syndrome virus

Author:
Dennis N. Makau; Igor A. D. Paploski; Cesar A. Corzo; Kimberly VanderWaal
Source:
Transboundary and emerging diseases 2022 v.69 no.2 pp. 524-537
ISSN:
1865-1674
Subject:
swine; swine production,   etc   ; autocorrelation; biosecurity; disease control; disease occurrence; farms; phylogeny; porcine reproductive and respiratory syndrome; risk; virulence; viruses;     Show all 12 Subjects
Abstract:
... Swine production in the United States is characterized by dynamic farm contacts through animal movements; such movements shape the risk of disease occurrence on farms. Pig movements have been linked to the spread of a virulent porcine reproductive and respiratory syndrome virus (PRRSV), RFLP type 1‐7‐4, herein denoted as phylogenetic sub‐lineage 1A [L1A]. This study aimed to quantify the contribut ...
DOI:
10.1111/tbed.14016

15. A systematic review of genotypes and serogroups of African swine fever virus

Author:
Hailong Qu; Shengqiang Ge; Yongqiang Zhang; Xiaodong Wu; Zhiliang Wang
Source:
Virus genes 2022 v.58 no.2 pp. 77-87
ISSN:
0920-8569
Subject:
African swine fever; African swine fever virus,   etc   ; antigenic variation; etiological agents; genes; genotyping; mortality; mutation rate; serotypes; systematic review; viruses;     Show all 11 Subjects
Abstract:
... African swine fever virus (ASFV) is the causative agent of African swine fever (ASF). The virus causes an acute highly hemorrhagic disease in domestic pigs, with high mortality. Although the overall genome mutation rate of ASFV, a large DNA virus, is relatively low, ASFV exhibits genetic and antigenic diversity. ASFV can be classified into 24 genotypes on the basis of the B646L gene. Cross-protect ...
DOI:
10.1007/s11262-021-01879-0

16. Carriage of Brachyspira hyodysenteriae on common insect vectors

Author:
R. Blunt; K. Mellits; E. Corona-Barrera; P. Pradal-Roa; S. McOrist
Source:
Veterinary microbiology 2022 v.269 pp. 109417
ISSN:
0378-1135
Subject:
swine; swine dysentery,   etc   ; Blatta; Brachyspira hyodysenteriae; DNA; Eristalis; Musca domestica; agar; digestive tract; etiological agents; frass; mice; microbiology; pupae; pupation;     Show all 15 Subjects
Abstract:
... The interactions of likely insect and murine vectors of the causative agent of swine dysentery, Brachyspira hyodysenteriae, were investigated. Insects were collected and analysed from 3 pig farms positive for B hyodysenteriae. Within these farms, several Musca domestica and Orphyra adult fly, Blatta sp. cockroach digestive tracts and hover fly (Eristalis sp) pupal form contents were positive in a ...
DOI:
10.1016/j.vetmic.2022.109417

17. High levels of standardized ileal digestible amino acids improve feed efficiency in slow‐growing pigs at late grower‐finisher stage

Author:
Jordi Camp Montoro; David Solà‐Oriol; Ramon Muns; Josep Gasa; Núria Llanes; Edgar Garcia Manzanilla
Source:
Journal of animal physiology and animal nutrition 2022 v.106 no.2 pp. 276-283
ISSN:
0931-2439
Subject:
swine; swine production,   etc   ; animal physiology; average daily gain; body weight; diet; feed conversion; feed intake; ileum; lysine; occupations; protein composition;     Show all 12 Subjects
Abstract:
... Slow‐growing pigs negatively affect production efficiency in conventional pig farms by increasing the occupation time of the facilities and being a limiting factor for the All‐In/All‐Out swine production systems. This subset of pigs is usually managed with the rest of the pigs, and their nutrient requirements may not be fulfilled. The purpose of the present study was to compare the productive perf ...
DOI:
10.1111/jpn.13610

18. Bioaugmentation with Acinetobacter sp. TAC-1 to enhance nitrogen removal in swine wastewater by moving bed biofilm reactor inoculated with bacteria

Author:
Xue Chen; Chunbo Yuan; Yunan Zhu; Huan Liu; Wang Chen; Qian Zhang
Source:
Bioresource technology 2022 v.359 pp. 127506
ISSN:
0960-8524
Subject:
swine,   etc   ; Acinetobacter; bioaugmentation; biofilm; denitrification; nitrogen; wastewater;     Show all 7 Subjects
Abstract:
... To enhance the performance of moving bed biofilm reactor (MBBR) inoculated with heterotrophic nitrification-aerobic denitrification (HN-AD) bacteria, bioaugmentation with Acinetobacter sp. TAC-1 was firstly employed and then the treatment performance for real swine wastewater was presented in this study. Results indicated that NH₄⁺-N and TN removal rates of bioaugmented reactor were significantly ...
DOI:
10.1016/j.biortech.2022.127506

19. Nutrition Component Adjustment of Distilled Dried Grain with Solubles via Aspergillus niger and Its Change about Dynamic Physiological Metabolism

Author:
Weiwei Fan; Xuhui Huang; Kehan Liu; Yongping Xu; Bo Hu; Zhanyou Chi
Source:
Fermentation 2022 v.8 no.6 pp. -
ISSN:
2311-5637
Subject:
swine,   etc   ; Aspergillus niger; cellulose; digestibility; fermentation; hemicellulose;     Show all 6 Subjects
Abstract:
... The low fiber digestibility and unbalanced amino acids restricted the use of DDGS in swine diets. Key nutrition components dynamic monitoring and key regulatory pathways analysis were performed to find the rules of nutrition changes for DDGS fermented by Aspergillus niger. Cellulose and hemicellulose were reduced to 15.3% and 15.2%. 1,4-D-Xylobiose was decreased from 16.8 μg/mL to 0.2 μg/mL. Lys, ...
DOI:
10.3390/fermentation8060264

20. Producer risk aversion and participation in agricultural cooperatives

Author:
Jason R.V. Franken; Michael L. Cook; Joost M.E. Pennings
Source:
Journal of co-operative organization and management 2022 v.10 no.2 pp. 100171
ISSN:
2213-297X
Subject:
swine,   etc   ; agricultural policy; debt; risk; risk management;     Show all 5 Subjects
Abstract:
... Little attention is given to cooperatives’ role in producer risk management. We review literature and theory in development of a hypothesized positive relationship between producers’ risk aversion and usage of cooperatives. We test the hypothesis using a sample of crop and hog producers and find evidence that cooperative membership and the percentage of commodity sold through cooperatives are posi ...
DOI:
10.1016/j.jcom.2022.100171