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 a PhD in Animal Science from the Veterinary School of the Federal University of Minas Gerais. (2001). She is a researcher at the Southeast Livestock Research Center (Embrapa Pecuária Sudeste - CPPSE). She has experience in the field of Veterinary Parasitology: Rhipicephalus (Boophilus) microplus tick; gastrointestinal nematodes of small ruminants; phytotherapy; nanostructured formulations based on plant molecules, targeted selective treatment (TST); anthelmintic resistance. She has registered 5 technological products and recognized at the 94th position of the Research Gate Ranking 2022 of the best scientists in the Veterinary and Animal Science field in the world. She is advisor in the Post-Graduate Course in Veterinary Sciences at UNESP Campus Jaboticabal. She trains students and professionals in In vitro Techniques for the Evaluation of Natural and Synthetic Products on Gastrointestinal Nematodes, learned at Moredun Research Institute, Scotland, and at University of Georgia, USA. (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 …
Studies indicate that the efficacy of Anthelmintics (AH) can be restored by replacing the parasite population in sheep, here called Worm Replacement (WR). Thus, we intend to evaluate and monitor the effect of partial and total replacement of the population of Haemonchus contortus in different sheep breeds (White Dorper, Santa Inês e Texel) on the anthelmintic resistance status for five ye…
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…
(Only some records are available in English at this moment)
The increase in the occurrence of anthelmintic resistance of gastrointestinal nematodes in sheep has generated the need to develop new tests to detect resistance or improve existing ones. The Larval Development Test (LDT) can slow down the establishment of resistance and preserve the effectiveness of anthelmintics. A newly developed diagnostic test based on LDT, called RESISTA-Test© (Proc…
Brazil has great diversity in livestock, and the sheep flocks are endowed with different regionalized breeds and crosses with exotic breeds, appropriately adapted, such as Texel, Ile de France, Suffolk and Dorper. Besides these, there are still the hair sheep breeds, like Santa Inês and Morada Nova, from the arid region of the northeast of Brazil. However, gastrointestinal nematodes (GIN)…
It is intended to measure the impact of infection by GIN on the growth curve of the animals, in order to develop a model of deworming of the animals by means of selective treatment (TST), using the daily weight gain as an indicator (Happy FactorTM). This strategy seems to be more adequate than the egg count per gram of feces (EPG), or even the FAMACHA© method since Morada Nova lambs with …
(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 research grants |
| 2 / 2 | Completed research grants |
| 5 / 5 | Ongoing scholarships in Brazil |
| 10 / 9 | Completed scholarships in Brazil |
| 1 / 1 | Ongoing scholarships abroad |
| 1 / 1 | Completed scholarships abroad |
| 21 / 20 | All research grants and scholarships |
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