CV Lattes
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Ministério da Agricultura, Pecuária e Abastecimento (Brasil). Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA). Embrapa Pecuária Sudeste (Institutional affiliation from the last research proposal) Birthplace: Brazil
Ana Carolina de Souza Chagas holds a degree in Biological Sciences from the Federal University of Juiz de Fora (UFJF, 1996), a master's degree in Behavior and Ecology of Zooparasites (UFJF, 1999) and PhD in Animal Science from the Veterinary School of the Federal University of Minas Gerais (2001). She is a researcher at the Embrapa Southeastern Livestock Research Unit (Brazilian Agricultural Research Corporation - Embrapa CPPSE). She has expertise in the Veterinary Parasitology area: Rhipicephalus tick (Boophilus) microplus; gastrointestinal nematodes of small ruminants; phytotherapy; nanostructured formulations based on plant molecules, targeted selective treatment (TST); parasite resistance. Five technological products were registered under her authorship. She was recognized in the 94th (2022) and 92nd (2023) position of the Research.com Ranking of the best scientists in Animal Science and Veterinary. She teaches and supervises students from the Graduate Program in Veterinary Sciences, School of Agricultural and Veterinary Sciences, UNESP Jaboticabal. She has been conducting training of students and professionals in in vitro techniques for evaluation of efficacy of natural and synthetic products on gastrointestinal nematodes learned at the Moredun Research Institute, Scotland, and at University of Geogia, USA. Visiting Researcher (2023-2024) at the Instituto Superior de Agronomia - ISA, School of Agriculture, University of Lisbon, Portugal: Proteomics applied to the study of sheep resistance to Haemonchus contortus infection. (Source: Lattes Curriculum)
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The current situation of anthelmintic resistance in Brazil predicts low expectations for an increase in the number of small ruminants. However, studies indicate that the efficacy of anthelmintics (AH) can be restored by replacing the parasitic population in sheep, here called worm replacement (WR). Thus, this proposal aims to evaluate and monitor the effect of partial and total replacemen…
The current situation of anthelmintic resistance in Brazil predicts low expectations for an increase in the number of small ruminants. However, studies indicate that the efficacy of Anthelmintics (AH) can be restored by replacing the parasitic population in sheep, here called Worm Replacement (WR). Thus, this proposal aims to evaluate and monitor the effect of partial and total replacemen…
The research team of the present proposal carried out the FAPESP project "Genetic characterization and immune responses associated with the phenotype of parasitic resistance in the Morada Nova sheep flock" (2017/01626-1). It is now expected to advance in the knowledge generated by the evaluation of the 287 lambs and 123 matrices of the aforementioned project so that applicable technologie…
Brazil has great diversity of exotic sheep breeds and their crosses, as well as hair-sheep breeds adapted to tropical conditions, as Santa Ines and Morada Nova. However, the gastrointestinal nematodes (GIN) are a major constrain in these production systems, in particular Haemonchus contortus, due to parasitic resistance widespread in the Brazilian flocks. In this way, economic losses are …
Haemonchus contortus, responsible for the haemonchosis disease, is the main gastrointestinal nematode (GIN) that infects sheep. Excretory-secretory (ES) products are relevant target antigens, as they are continuously secreted by parasites and have been associated with the development of immune protection against H. contortus. In a recent study, H. contortus IgM isotype antibodies against …
The current situation of anthelmintic resistance in Brazil indicates low expectations for increasing the number of small ruminants. However, studies indicate that the effectiveness of anthelmintics (AH) can be restored by replacing the parasite population in sheep, herein called worm replacement (WR). Thus, the present proposal aims to evaluate and monitor the effect of partial and total …
Three sheep breeds (Santa Inês, Texel, and White Dorper) carrying different beta-globin haplotypes (AA, AB, and BB) will be comparatively evaluated during natural infection with H. contortus. The levels of anti-H. contortus (ES24 protein) antibodies of the IgG, IgA, and IgM isotypes will be assessed systemically (serum) and locally (nasal and abomasal mucosa).
(Only some records are available in English at this moment)
The growing consumer acceptance by products of ovine origin has driven sheep farming in Brazil, but although the national territory wastes a diversity of breeds in the most diverse biomes and regions of the country, production is not sufficient to meet the demand itself, as tonnes of sheep meat are imported annually. In this context, gastrointestinal nematodes (GIN) are the major bottlene…
Rhipicephalus microplus populations resistant to deltamethrin (pyrethroid) and amtitraz (amidine) are increasingly common and changes in the cuticular layers may contribute to the reduction of penetration of these drugs, contributing to the evolutionary success of these phenotypes. On the other hand, little is known about the sensitivity of Amblyomma sculptum, the main transmitter of Braz…
(Only some records are available in English at this moment)
Haemonchus contortus is the gastrointestinal nematode (GIN) species that most parasites sheep and goats in tropical and subtropical regions. Due to the high prevalence and pathogenicity by hematophagy, it causes severe anemia, submandibular edema and deaths. Post-genomics tools, such as proteomics, allow the identification of differentially expressed genes and differentially abundant prot…
Ticks in general represent a great public health concern, since they cause considerable livestock losses and are vectors of many pathogens, such as bacteria, viruses, protozoa, and helminths, affecting domestic/wild animals and human beings as well. In this context, new tick control strategies have been explored, such as the use of chemical acaricides of natural origin, with active ingred…
| 2 / 2 | Ongoing grants |
| 2 / 2 | Completed research grants |
| 5 / 5 | Ongoing scholarships in Brazil |
| 14 / 13 | Completed scholarships in Brazil |
| 2 / 2 | Completed scholarships abroad |
| 25 / 24 | All research grants and scholarships |
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