A5100321685- Animal Virus Infections Studies
- Virus-based gene therapy research
- Viral Infections and Immunology Research
- Viral gastroenteritis research and epidemiology
- Animal Disease Management and Epidemiology
- Herpesvirus Infections and Treatments
- Vector-Borne Animal Diseases
- Plant Virus Research Studies
- Rabies epidemiology and control
- Microbial infections and disease research
- RNA Interference and Gene Delivery
- Parasitic Infections and Diagnostics
- Poxvirus research and outbreaks
- SARS-CoV-2 and COVID-19 Research
- Plant and Fungal Interactions Research
- Clostridium difficile and Clostridium perfringens research
- Coconut Research and Applications
- Topological Materials and Phenomena
- Selenium in Biological Systems
- Toxoplasma gondii Research Studies
- Parasitic Diseases Research and Treatment
- Neonatal and Maternal Infections
- Diagnosis and treatment of tuberculosis
- Hepatitis B Virus Studies
- Venomous Animal Envenomation and Studies
Hunan Agricultural University
2012-2024
Guangdong University of Technology
2023
The objective of this study was to investigate whether supplemental dietary arginine increases reproductive performance in mice infected with porcine circovirus type2 (PCV2). A total 50KM female were allotted randomly the group (0.6% arginine+gestation diet) and control (1.22% alanine+gestation diet). All began mate after 14 days treatment our prepared feed challenged PCV2 at dose 100 TCID50 (50% tissue culture infection dose, TCID50) 7 pregnancy. Abortion rate, litter number, birth weight,...
A Getah virus (GETV) outbreak occurred in a swine farm Hunan, China, between June and July 2017. Approximately 200 piglets died 5–10 days after birth, more than 150 pregnant sows had stillbirths or foetal mummies this outbreak. GETV HuN1, isolated from the cerebrum of an infected piglet, shared close evolutionary relationship with Kochi/01/2005 strain, pigs Japan. was detected cerebral cortices dead foetus various organs two piglets, thereby demonstrating that can be transmitted through...
Streptococcus suis is a zoonotic pathogen that harbors anti oxidative stress genes, which have been reported to be associated with virulence. Serial passage has widely used obtain phenotypic variant strains investigate the functions of important genes. In present study, S. serotype 9 strain DN13 was serially passaged in mice 30 times. The virulence single colony from 10 (SS9-P10) found increase by at least 140-fold as indicated LD50 values, and increased stable for colonies 20 (SS0-P20)...
Abstract Background Spirocerca lupi is a life-threating parasitic nematode of dogs that has cosmopolitan distribution but most prevalent in tropical and subtropical countries. Despite its veterinary importance canids, the epidemiology, molecular ecology population genetics this parasite still remain unexplored. Methods The complete mitochondrial (mt) genome S . was amplified four overlapping long fragments using primers designed based on partial cox 1, rrn S, 2 nad sequences. Phylogenetic...
The present study was conducted to evaluate the immune-enhancing effects of dietary l -glutamine supplementation in porcine circovirus type 2 (PCV2)-infected mice, and examine clearance glutamine against PCV2 experimentally infected mice. A total sixty Kunming female mice were with at a dose 100 TCID 50 (50 % tissue culture infection dose) by intraperitoneal injection after weeks or -alanine (as control (isonitrogenous) group). measured variables on 3rd, 5th, 7th, 9th 11th d post-infection...
The present study was performed to determine the protective role of dietary selenium (Se) yeast supplementation in porcine circovirus type 2 (PCV2) infected mice. Forty-eight Kun Ming female mice were randomly assigned Se group (0.3%Se +basal diet, n = 24) and control (basal 24). After 3 days adaptive feeding 15 treatment with experimental feed, challenged by intraperitioneal injection PCV2 at dosage 2000 TCID50 (50% tissue culture infection dose, TCID50). Serum total superoxide dismutase...
SUMMARY The first dog-associated outbreak of rabies in swine China (Hunan province) has been diagnosed and the related virus isolated. Sequence analysis showed that pig isolate was a genotype 1 with very high nucleotide identity to local dog isolates.
Porcine circovirus type 2 (PCV2) is associated with various diseases that impose a significant economic burden on the swine industry. We hypothesised nutritional supplementation proline to enhance immune response might be useful prophylactic measure against PCV2 infection. To test this hypothesis, in present study, we measured clinical data, including blood parameters, serum cytokine profile, virus load organs and serum, microscopic lesions lung, liver spleen, both PCV2-infected pregnant...
Deinagkistrodon acutus is a venomous pit viper commonly used in traditional Chinese medicine; farming these snakes has become major industry. In 2017, an outbreak of fatal diarrhoea among farm-raised D. Hunan Province caused the deaths 5,600 within 3 weeks. We isolated brand-new sequence type Aeromonas hydrophila (ST516) from lesions and confirmed that this bacterium was causal agent outbreak. Snakes infected with laboratory showed similar clinical symptoms to those original also tested...
A double-antigen sandwich enzyme-linked immunosorbent assay (ELISA) is described for detection of porcine circovirus 2 (PCV2) antibodies using the well-characterized recombinant PCV2 capsid protein. In a comparative test 394 pig sera against an indirect immunofluorescence (IIF) and commercial ELISA kit (also based on protein), results showed that diagnostic sensitivity, specificity, accuracy were, respectively, 90.61, 94.02, 91.62% compared with IIF 94.38, 95.28, 94.67% kit. Assay 12...
Porcine sapeloviruses (PSVs) are widely distributed in pig populations; however, little information on their evolutionary history and the mechanisms driving divergence is available. Therefore, present study, 241 fecal samples 91 intestinal contents collected from pigs at 26 farms Hunan, China, were tested for presence of PSVs. The overall PSV positivity rate was 46.39 %, with a particularly high infection detected nursery fattening pigs. A total 29 strains (PSV-HuNs) isolated, these showing...
Porcine teschoviruses (PTVs) have been shown to be widely distributed in pig populations. In this study, 261 faecal and 91 intestinal content samples collected from pigs at 29 farms Hunan, China, were tested for the presence of PTV by reverse transcription-polymerase chain reaction (RT-PCR). An overall PTV-positivity rate 19.03% was detected RT-PCR, a high infection circulating asymptomatic fattening nursery pigs. total, 40 isolates (PTV-HuNs) obtained. Alignment their coding sequences with...
Rapid evolution of porcine reproductive and respiratory syndrome virus (PRRSV) is the bottleneck for effective prevention control PRRS. Thus, understanding prevalence genetic background PRRSV strains in swine-producing regions important disease control. However, there only limited information about epizootiological situation PRRS Xinjiang Uygur Autonomous Region, China. In this study, blood or lung tissue samples were collected from 1,411 PRRS-suspected weaned pigs 9 pig farms Changji,...
Porcine teschovirus (PTV) comprises at least 13 genotypes (PTV 1-13). Here, the of field strains prevalent among pig populations in Hunan Province, China, were identified. Multiple PTV genotypes, including all except 7 and 8, found co-circulating populations, reflecting a high genetic diversity. Moreover, we identified nine novel provisionally designated as 14-22. 21-HuN41 21-HuN42 successfully isolated, their nearly complete genomes sequenced. Homology comparison polyprotein genes...
Toxoplasma gondii infections are prevalent in animals and humans worldwide. Although the prevalence of T. has been reported many China, little is known infection sows. Antibodies to sows Hunan province, subtropical were examined using indirect hemagglutination test (IHAT). Overall, 31.3% (373/1191) seropositive for . Among 11 representative regions seroprevalence ranged from 14.8% 45.1%. In addition, was higher summer (37.4%) autumn (34.9%) than spring (24.6%) winter (23.9%). Regarding...