Besnoitia besnoiti is a cyst-forming parasite that has been associated with economic losses in Africa and Europe. Besnoitiosis is considered as a re-emergent disease in the European continent. It is unknown whether cattle are exposed to B. besnoiti in the Americas, thus the aim of this study was to serologically investigate antibodies against B. besnoiti in a total of 2014 cattle serum samples from two states from Brazil. All samples were evaluated by IFAT and part of the positive sera was tested by Western blot (WB) using tachyzoites extracts under non-reducing condition. A total of 3.48% (70/2014) of the tested sera reacted positively by IFAT with titers of 200 (85.7%), 400 (10%) and 800 (4.3%). When 47 positive samples were assessed by WB a range of antigens from 7 to 206 kDa was recognized by the IFAT-positive sera. The results are suggestive of exposure of Brazilian cattle to B. besnoiti due to the titers (≥ 200) observed for some sera using IFAT. However, the antigens recognized by the IFAT-positive animals did not completely match with the WB patterns previously described by other working groups. It is possible that Brazilian cattle are exposed to B. besnoiti strains with different antigenic composition of those described in the European and African continent. Further studies are needed to confirm the presence of B. besnoiti or other Besnoitia species in Brazilian cattle.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.vetpar.2013.10.025 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Vis-NIRS as an auxiliary tool in the classification of bovine carcasses.
PLoS One
January 2025
College of Veterinary Medicine and Animal Science, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil.
This work aimed to evaluate the use of Visible and Near-infrared Spectroscopy (Vis-NIRS) as a tool in the classification of bovine carcasses. A total of 133 animals (77 females, 29 males surgically castrated and 27 males immunologically castrated) were used. Vis-NIRS spectra were collected in a chilling room 24 h postmortem directly on the hanging carcasses over the longissimus thoracis between the surface of the 5th and 6th ribs.
View Article and Find Full Text PDFChlamydia in farms located in the Argentine-Brazilian-Paraguay tri-border.
Braz J Microbiol
January 2025
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
Chlamydias are zoonotic pathogens, broadly present in several bird species and responsible for economic losses in animal production. Our study focused on assessing the prevalence of Chlamydial species posing zoonotic risks in farm animals within the highly biodiverse Argentine, Brazil, and Paraguay tri-border area, characterized by significant human interaction. We surveyed nine farms in an area and nasally swabbed a total of 62 animals, that included cattle, horses and pigs.
View Article and Find Full Text PDF"Low Carbon Brazilian Beef": How is it perceived by Brazilians?
Food Res Int
January 2025
Embrapa Agroindústria de Alimentos, Av. das Américas, 29501, CEP 23020-470 Rio de Janeiro, Brazil. Electronic address:
"Low Carbon Brazilian Beef" (LCBB) represents a Brazilian concept brand that certifies livestock systems adopting specific technical guidelines to minimize methane gas emissions from cattle. Understanding consumers' perceptions of this brand concept can help develop strategies to promote its consumption. The objective of this study was to investigate the perception of Brazilian consumers living in the state of Rio de Janeiro regarding the LCBB through free word association and to evaluate the influence of socio-demographic variables, green consumption values and frequency of beef consumption in associations.
View Article and Find Full Text PDFAnalysis of Growth Models in Galician × Nelore Crossbred Cattle in the First Year of Life.
Animals (Basel)
December 2024
CISAS-Center for Research in Agrifood Systems and Sustainability, Instituto Politécnico de Viana do Castelo, Rua da Escola Industrial e Comercial Nun'Alvares 34, 4900-347 Viana do Castelo, Portugal.
The veal niche market is gaining momentum in Brazil. Locally known as 'Vitelão', veal refers to the meat from calves slaughtered up to 12 months of age. In this study, we assessed the Galician Blond × Nelore cross as a candidate to produce veal.
View Article and Find Full Text PDFFirst Record of Tropical Sod Webworm on Turfgrass in Brazil.
Neotrop Entomol
December 2024
Dept of Agronomy, Santa Catarina State Univ (CAV/UDESC), Lages, SC, Brazil.
Climate change and anthropogenic disturbance in agricultural production systems can facilitate shifts in the distribution of arthropod pest species and in the range of plant hosts on which they feed. This study presents the first record of Tropical Sod Webworm (TSW), Herpetogramma phaeopteralis Guenée (Lepidoptera: Crambidae: Spilomelinae), on native or nativized species of the genus Axonopus (Poaceae) in Brazil. The occurrence of population outbreaks of this species was observed in March and April of 2024 among smallholder cattle farmers in Capão Alto and Campo Belo do Sul, both municipalities situated in the highlands of Santa Catarina State, southern Brazil.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!