A5087787153- Reproductive Physiology in Livestock
- Reproductive Biology and Fertility
- Genetic and phenotypic traits in livestock
- Effects of Environmental Stressors on Livestock
- Animal Behavior and Welfare Studies
- Mosquito-borne diseases and control
- Sperm and Testicular Function
- Ovarian function and disorders
- Education and Digital Technologies
- Animal Genetics and Reproduction
- Malaria Research and Control
- Vaccine Coverage and Hesitancy
- Fish Biology and Ecology Studies
- Science and Education Research
- Hepatitis Viruses Studies and Epidemiology
- Ectopic Pregnancy Diagnosis and Management
- Thermoregulation and physiological responses
- Viral gastroenteritis research and epidemiology
- Assisted Reproductive Technology and Twin Pregnancy
- Reproductive Health and Technologies
- Metabolism and Genetic Disorders
- Dengue and Mosquito Control Research
- Meat and Animal Product Quality
- Climate Change and Health Impacts
- Viral Infections and Vectors
Universidade Federal de Viçosa
2022-2025
Ministério da Saúde
2025
Antes
2023
Coordenação de Aperfeicoamento de Pessoal de Nível Superior
2023
Universidade Federal Fluminense
2023
Universidade Unigranrio
2019-2021
Fundação Oswaldo Cruz
2021
Federal Institute of São Paulo
2018
A progressive increase in the circulation of arboviruses tropical countries has been observed, accounting for 700,000 yearly deaths world. The main objective this article was to identify presence Zika (ZIKV), dengue (DENV), and Chikungunya (CHIKV) viruses immature stages Aedes aegypti Ae. albopictus. Household collections phases vectors were carried out years 2015 2016. total 2902 dwellings visited rate infestation with larvae pupae mosquitoes 283/1462 (19.4%) March 55/1440 (3.8%) June 2015....
Abstract Human chorionic gonadotropin (hCG) has been used to improve goats reproductive efficiency. This study aimed (i) evaluate if hCG administered by the intramuscular (i.m.) or intravaginal (i.vag.) route can be detected a rapid β‐hCG test in blood plasma samples and (ii) document ovarian effects of both routes at time artificial insemination (AI) performed 60 h after oestrus synchronization goats. Twenty‐two Alpine received two i.m. injections 30 μg d‐cloprostenol (Prolise®, Tecnopec,...
O objetivo deste trabalho foi avaliar o jogo “Caça mosquito” como uma das estratégias educativas para ensino de ciências sobre tema arboviroses (DENV, ZIKV e CHIKV) com linguagem conteúdo direcionados aos alunos do 7º 8º anos Ensino Fundamental II Colégio Estadual Santo Antônio (CESA), localizado no quarto distrito (Xerém) Duque Caxias, RJ. Num primeiro momento (PM), aplicado duas turmas, cada ano (7º anos), separadamente. Cada turma 15 jogadores, divididos igualmente em 3 equipes. Ao final,...
The cryopreservation process causes oxidative stress to the sperm cell, and addition of antioxidants extender for semen freezing helps protection. This study assessed effect L-carnitine (LC) concentrations (0, 5, or 10mM LC) on two ram extenders (Tris-egg yolk commercial optiXcell IMV medium (IMV Technologies)) cryopreservation. Four Santa Inês rams were used during breeding season. After collection, macroscopic microscopic evaluations performed, a pool was formed. diluted, final...
The early regression of corpora lutea (ERCL) is a functional alteration that occurs more often in animals subjected to multiple ovulation followed by embryo transfer (MOET) technique. Although it mainly reported goats, sheep are also susceptible this disorder. ERCL may compromise the quality and viability embryos, even embryonic recovery rate. Thus, non-diffusion animal genetic material on commercial scale increases costs, decreasing efficiency. This study aimed assess occurrence donor ewes...
This study aimed to compare the prevalence of hydrometra (HD) at end reproductive season in goats subjected (HORM and LIGHT) or not (Control-HORM Control-LIGHT) estrus induction by either hormonal protocol light program, respectively, non-breeding season. HORM-goats received intravaginal sponges (six days) associated with cloprostenol plus eCG 24 h before sponge removal while LIGHT-goats were submitted 16 8 darkness for 60 days. Pregnant from both groups gave birth early evaluated...
This study checked the efficacy of progesterone (P4) device reinsertion during early luteal phase on function and embryo yield in superovulated crossbred ewes. Twenty multiparous ewes received an intravaginal P4 for nine days (D0 to D9) followed by six decreasing doses (25, 25, 15, 10, 10%) 133 mg pFSH i.m. at 12 h intervals, starting 60 before removal. Ewes were naturally mated intervals while estrus. On D13, with viable corpora lutea (CL; n=19) equally allocated receiving their (G-P4;...
O conhecimento da estrutura populacional
superior à luteal (P<0,05) e semelhante folicular na quantidade de oócitos boa qualidade em gatas não houve diferença cadelas.Conclui-se que o fatiamento recupera maior oócitos, influenciando sua qualidade.
Resumo Este estudo avaliou os efeitos da dominância social sobre o comportamento do estro e parâmetros ovarianos de cabras leiteiras submetidas à indução sincronizada durante a estação não reprodutiva. A sincronização foi induzida em 23 leiteira alocadas baias coletivas. ultrassonografia realizada intervalos 12 horas desde remoção dispositivo até ovulação. Após detecção início (EO), as foram imediatamente removidas dos currais. pontuada acordo com EO relação dispositivo, sendo: HD - alto...
Abstract This study assessed the effects of social dominance on behavioral estrus and ovarian parameters dairy goats subjected to synchronous induction during non-breeding season. Synchronous was induced in 23 allocated collective pens. Ovarian ultrasonography performed at 12 h intervals from device removal ovulation. Upon onset (EO) detection, were immediately removed Dominance scored according EO relation each pen, with HD - high dominants (<36 h; n = 8), MD medium (36 48 10) LD low...
The use of equine chorionic gonadotrophin (eCG) in oestrous induction protocols is associated with antibody production against eCG. Moreover, there are important welfare issues involved its and the development viable without eCG dairy goats essential. aim this study was to assess oestrus ovulatory responses short-term synchronization protocol or nulliparous (NUL) multiparous (MUL) during breeding season. On a random day cycle (Day 0), Alpine (n=10 NUL 10 MUL), Nubian Saanen 6 MUL) received...