A5046142775- Reproductive biology and impacts on aquatic species
- Sperm and Testicular Function
- Aquaculture Nutrition and Growth
- Fish biology, ecology, and behavior
- Environmental Toxicology and Ecotoxicology
- Pharmaceutical and Antibiotic Environmental Impacts
- Aquaculture disease management and microbiota
- Fish Biology and Ecology Studies
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Reproductive Biology and Fertility
- Aquatic Ecosystems and Biodiversity
- Science and Education Research
- Fish Ecology and Management Studies
- Physiological and biochemical adaptations
- Education Pedagogy and Practices
- Reproductive Health and Technologies
- Animal Genetics and Reproduction
- Environmental Sustainability and Education
- Water Quality and Pollution Assessment
- Education and Digital Technologies
- Aquatic life and conservation
- Selenium in Biological Systems
- Toxic Organic Pollutants Impact
Pontifícia Universidade Católica de São Paulo
2023
Universidade de São Paulo
2017-2022
Universidade Estadual do Ceará
2013-2018
Instituto de Geociencias
2017
Exposure to aluminum (Al) and + manganese (Mn) can trigger an increase in reactive oxygen species (ROS) modify the activity of oxidative defense enzymes. This study investigated whether exposure Al Mn at acid pH for 24 96 h causes stress evidenced by antioxidants damage gills liver sexually mature Astyanax altiparanae males. The fish were subsequently immersed metal-free water see they recovered from effects these metals. boosted gill superoxide dismutase (SOD) did not recover when same...
The toxicity of metals, including aluminum (Al), can be potentiated by temperature and acid pH, a concern in view the current global warming scenario. aim this study was to evaluate bioconcentration Al testes semen Astyanax altiparanae potential metal, at different environmental temperatures cause cytotoxicity genotocixity erythrocytes spermatozoa. A. males were divided into nine experimental groups: each three water (20, 25 30 °C), fish exposed neutral an pH acidic containing (0.5 mg.L-1)....
Determinou-se a dose inseminante para fertilização artificial e descreveu-se o desenvolvimento embrionário de tambaqui (Colossoma macropomum). Os gametas foram coletados reprodutores induzidos hormonalmente. Foi realizada nas proporções espermatozoides/ovócito D1-50.666; D2-75.999; D3-101.332; D4-126.665; D5-151.998. O foi acompanhado por meio observações periódicas em estereoscópio até eclosão dos ovos. Na fase fechamento do blastóporo calculada taxa diferentes doses inseminantes. A...
Tambaqui (Colossoma macropomum) is a native freshwater fish that of great importance for Brazilian aquaculture. Because this importance, several techniques have been developed to improve the reproduction species in captivity. One these cryopreservation sperm. In an effort increase efficiency protocols, researchers tried determine suitable diluting solutions and freezing methods, which will provide better post-thaw sperm quality. Thus, study aimed evaluate different diluents methods tambaqui...
This study evaluated the effect of glucose or Beltsville Thawing Solution (BTS™) combined with dimethyl sulfoxide (DMSO) methylglycol (MG) under two different freezing protocols on kinetics and morphology cryopreserved Prochilodus brevis sperm.The semen samples were diluted using one four treatments (glucose+DMSO, glucose+MG, BTS™+DMSO, BTS™+MG), loaded into 0.25-ml straws subjected to processes (programmed machine dry shipper).After 10 days, thawed, sperm evaluated.The physicochemical...
The objective of the current study was to observe performance kinetics (motilities and velocities) spermatozoa from Prochilodus brevis (curimatã), Colossoma macropomum (tambaqui) Piaractus brachypomus (pirapitinga) species in different times post-activation. sperm P. brevis, C. were collected after hormonal induction with carp pituitary extract. samples not contamination water, urine or feces had motility subjective, morphology, osmolality concentration analyzed. selected analyzed Sperm...
Resumo O objetivo deste trabalho foi avaliar o efeito da adição de gema ovo (GO) sobre a cinética dos espermatozoides tambaquis após criopreservação. Utilizaram-se vinte machos (n= 4 pools), que foram induzidos hormonalmente com extrato hipofisário carpa, para espermiação. Quatorze horas indução, realizou-se coleta seminal. sêmen cada pool diluído em Ringer adicionado 10% dimetilsulfóxido (DMSO) acrescido ou não GO (T1: sem acréscimo GO; T2: 5% e T3: GO). tratado envasado palhetas 0,5 mL,...
The National Secondary Education Examination (Exame Nacional do Ensino Medio- ENEM) aims that schools adopt an interdisciplinary and contextualized education, being a requirement for entry into higher education institutions. In biology there is area named Biotechnology, relates to several technological activities important society, but with ethical, social, political questions, among others. this context, the present study examine how biotechnology addressed by teachers of 3rd year high...
O trabalho analisa a dinâmica das relações entre alunos, professores e tutores em fóruns de interação um curso graduação Ciências Biológicas. Para tanto, o nível foi observado discussão quatro disciplinas curriculares representadas por sociogramas elaborados com software Pajek®. Percebeu-se que aluno desempenha papel central nas discussões na construção do processo ensino aprendizagem sua participação se torna progressivamente mais autônoma como desenvolvimento temporal curso. Observou-se...