A5041065092- Animal Disease Management and Epidemiology
- Microbial infections and disease research
- Viral gastroenteritis research and epidemiology
- Aquaculture disease management and microbiota
- Vector-Borne Animal Diseases
- Viral Infections and Immunology Research
- Veterinary medicine and infectious diseases
- Salmonella and Campylobacter epidemiology
- Animal Virus Infections Studies
- Bacteriophages and microbial interactions
- Pneumonia and Respiratory Infections
- Virus-based gene therapy research
- T-cell and Retrovirus Studies
- Clostridium difficile and Clostridium perfringens research
- Global trade, sustainability, and social impact
- Occupational exposure and asthma
- Herpesvirus Infections and Treatments
- Leptospirosis research and findings
- Inhalation and Respiratory Drug Delivery
- Animal Behavior and Welfare Studies
- Vibrio bacteria research studies
- Brucella: diagnosis, epidemiology, treatment
- Escherichia coli research studies
- Mycobacterium research and diagnosis
- Animal Nutrition and Physiology
Universidade Estadual Paulista (Unesp)
2017-2024
Universidade Federal de Lavras
2016
Abstract Background The objective of the study was to evaluate occurrence and severity Porcine Respiratory Diseases Complex (PRDC) pathogens in Goiás State, Brazil. Were assessed serological antibodies occurrency Mycoplasma hyopneumoniae , Actinobacillus pleuropneumoniae swine influenza virus (SIV), as well evaluation pulmonary Mycoplasma-like lung lesions, pleuritis, histopathological lesions diseases associated with risk factors, such management, housing productive indexes. We conveniently...
ABSTRACT: Enterotoxigenic Escherichia coli (ETEC) is the major cause of diarrhea in newborn and weaned pigs. Bacteria adhesion to host cell considered a specific phenomenon among fimbrial non-fimbrial adhesins with their respective receptors on enterocytes. Enteric disorders are related fimbriae F4 (K88), F5 (K99), F6 (987P), F41, F18. In addition ETEC, another category E. , porcine pathogenic (PEPEC),can pigs; it produces attaching effacing-associated (Paa) adhesin in, which capable typical...
Abstract Mycoplasma ( M .) hyopneumoniae is the main pathogen of porcine enzootic pneumonia (PEP). Its controlling challenging, and requires alternative strategies. This study aimed to develop an oral vaccine against M. using a nanostructured mesoporous silica (SBA-15) as adjuvant, compare its effect with intramuscular (IM) commercial (CV). Fifty 24 day-old . -free piglets composed five equal groups for different immunization protocols, consisting CV and/or (OI). Control did not receive any...
Mycoplasma hyopneumoniae is a difficult-to-control bacterium since commercial vaccines do not prevent colonization and excretion. The present study aimed to evaluate the performance of an orally administered vaccine composed antigens extracted from incorporated into mesoporous silica (SBA-15), which has adjuvant-carrier function, aiming potentiate action intramuscular vaccine. A total 60 piglets were divided four groups (n = 15) submitted different vaccination protocols as follows, Group 1:...
Swine eperythrozoonosis or porcine hemoplasmosis is an infectious disease caused mainly by Mycoplasma suis and distributed worldwide. This study investigated the occurrence of hemothropic mycoplasmas (PHMs) in fetuses sows with reproductive failure. Two hundred seventy-six samples (80 sows' blood 196 fetal tissue samples) from 27 farms disorders were evaluated. The PHMs DNA was detected 15 out 80 (18.7%) but it not fetuses. bacterial load ranged 1.32 × 102 to 2.61 105 copies/µL. From tested...
Abstract Direct detection of Mycoplasma hyopneumoniae through molecular tools is a growing trend for early diagnosis, highlighting the importance knowing M. dynamics in respiratory tract upon infection. This study focused on monitoring infection level and its effects different anatomic sites experimentally infected swine four time-points post-infection. To this end, 24 pigs were allocated to either non-inoculated group ( n = 8) or inoculated 16). On day 0 post-infection (dpi), animals...
ABSTRACT: Swine can be infected by bovine viral diarrhea virus (BVDV). However, transmission routes among pigs are still unknown. The objective of the present study was to induce experimental infection BVDV-1 in weaned piglets and assess potential through pen back pond water, used facilitate heat exchange housed barns. Two repetitions (BP1 BP 2) were performed using 12 proven free BVDV (n=6 per repetition) allocated into three groups: control, sentinels with two each. placed stainless steel...
BACKGROUND: Swine under natural conditions may become infected with Bovine Viral Diarrhea Virus (BVDV).It is known that BVDV transmission to pigs requires direct or indirect contact secretions of animals.However, the routes among still remain unknown.OBJECTIVE: The objective this study was verify, experimental conditions, whether piglets can shed virus and transmit it by air nose-to-nose contact.For that, two experiments performed repetitions were carried out, using six animals in each...
ABSTRACT: The aim of this study was to determine the occurrence antibodies anti-Brucella in 1,940 swine blood samples. Out sera samples, 1,594 were from 30 intensive pig farming seven different states, collected during slaughtering animals, and 346 samples 56 non-technified (subsistence) herds Jaboticabal region, São Paulo State, Brazil. All tested by Buffered Plate Acidified Antigen (BPAA) considered positive case agglutination. If positive, Complement Fixation Reaction (CFR) as a...
Since the occurrence of swine salmonellosis has increased over time and control strategies other than biosecurity are highly recommended, present study aimed to evaluate efficacy vaccination with Salmonella Choleraesuis Typhimurium bacterins in pigs. Two experimental groups were formed: G1, animals immunized two doses a commercial vaccine (n = 20); G2, group 20). After vaccination, all pigs orally challenged (D0) 108 CFU evaluated for 40 days. Every 10 days after D0, five piglets from each...
ABSTRACT: Swine can be infected by the bovine viral diarrhea virus (BVDV) under natural conditions. For this reason, further information and divulgation are needed regarding pathogenicity of in swine. This infection is practically unknown realm pig farming, and, as it shares some similarities with classical swine fever (CSFV), its diagnosis becomes a challenge for official sanitary programs. Studies have shown absence clinical signs piglets reproductive problems sows due to BVDV infections....
Bovine Viral Diarrhea virus (BVDV) can infect pigs and lead to production losses. Data on the epidemiology of this in are scarce. In order obtain occurrence data disease, 600 blood serum samples from five farms northeast state São Paulo were collected. Samples divided into four categories: Weaning (W), Nursery (N), Finishing (F) Sows (S), submitted Virus neutralization (VN) test for BVDV-1 BVDV-2. One (1/30) positive sample was detected Property 2, showing 3.33% prevalence a herd level...
The use of antimicrobials as growth promoters and disease prevention is being constantly reduced in several animal production systems, including the swine industry. Therefore, this study aimed to evaluate effectiveness using acidifiers control Salmonella Typhimurium 65-day-old pigs by detecting pathogen organs at euthanasia. For this, 24 piglets were divided into two experimental groups consisting 12 each. An untreated group (G1) a treatment (G2) received liquid organic acidifier drinking...
Abstract Mycoplasma (M.) hyopneumoniae interacts with the respiratory microbiota and facilitates colonization of other pathogens. The present study investigated pulmonary nasal M. -infected -free pigs. Sixty-six pigs from three commercial herds were selected at end finishing phase: 44 originated two -positive 22 a -negative farm. At slaughterhouse, samples turbinate (NT) bronchus-alveolar lavage fluid (BALF) collected. DNA was extracted kit infection status confirmed by qPCR. All same herd...
Mycoplasma hyopneumoniae is the primary agent of Swine Enzootic Pneumonia (SEP). Vaccines reduce clinical manifestation disease but do not prevent infection. The present study aimed to evaluate use antimicrobial drugs minimize impact M. hyopneumoniae. For this, 32 pregnant female pigs and their litters were selected then followed from birth slaughter. involved three experimental groups that received metaphylactic treatment with different protocols involving tilmicosin, valnemulin,...