A5107424007- Aquaculture Nutrition and Growth
- Fish biology, ecology, and behavior
- Aquaculture disease management and microbiota
- Reproductive biology and impacts on aquatic species
- Fish Biology and Ecology Studies
- Sperm and Testicular Function
- Parasite Biology and Host Interactions
- Aquatic life and conservation
- Fish Ecology and Management Studies
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Physiological and biochemical adaptations
- Environmental Toxicology and Ecotoxicology
- Growth and nutrition in plants
- Agricultural and Food Sciences
- Animal Genetics and Reproduction
- Reproductive Biology and Fertility
- Banana Cultivation and Research
- Identification and Quantification in Food
- Academic Research in Diverse Fields
- Constructed Wetlands for Wastewater Treatment
- Clinical Laboratory Practices and Quality Control
- Crustacean biology and ecology
- Coconut Research and Applications
- Food Safety and Hygiene
- Leaf Properties and Growth Measurement
Brazilian Agricultural Research Corporation
2013-2024
Universitat Politècnica de València
2013
Pontifical Catholic University of Puerto Rico
2004-2008
Pontifícia Universidade Católica do Paraná
2003-2006
Universidade Estadual Paulista (Unesp)
1999-2001
Centro de Estudos e Pesquisas em Educação, Cultura e Ação Comunitária
2001
The aim of this study was to evaluate the effect dietary supplementation with autochthonous probiotic bacteria Bacillus cereus on growth performance, haematological parameters and survival tambaqui (Colossoma macropomum). Tambaqui fingerlings (0.94 ± 0.02 g) were fed for 120 days following diets: basal (without probiotic) three supplemented diets (4.2 × 104, 3.9 106 3.3 108 CFU/g). Growth performance evaluated every 30 days. Thereafter, fish challenged against Aeromonas hydrophila evaluated....
Fish transportation is a common practice on fish farms and considered to be stressor that could negatively affect health. The objective of this study was evaluate several physiological responses stress in jundiá caused by transport at different loading densities. Jundiá juveniles were placed plastic bags mechanical simulator for four hours densities (75, 150, 250 350 g L-1) then transferred sixteen 80-L boxes 96 after transport. Water samples collected before measure dissolved oxygen,...
Summary In the hatchery-bred tambaqui Colossoma macropomum , spontaneous semen release does not occur, and hand-stripping produces reduced volume. The goal of this work is to evaluate effects hormonal induction with carp pituitary extract (CPE) on both qualitative (visual aspect, pH, motility, viability morphological abnormalities) quantitative (volume, concentration number spermatozoa per ejaculate) traits semen. Eleven males were treated CPE (induced), 11 left untreated as a control...
O jundiá, Rhamdia quelen, é uma espécie de peixe nativa ainda pouco conhecida cientificamente, mas que tem atraído a atenção produtores e pesquisadores devido várias características favoráveis à sua inclusão na lista peixes criados comercialmente no país. A freqüência alimentar um fator importante dentro do manejo em piscicultura visando melhorar eficiência produtiva reduzir os custos produção. presente trabalho testou quatro regimes arraçoamento (1, 2, 3 4 vezes ao dia) intervalos...
Summary The developmental stages for the embryonic and larval periods of silver catfish ( Rhamdia quelen ) kept at different temperatures (21, 24, 27 30°C) are described. Fish were analysed under light scanning electron microscopy. For development, we described 25 stages, which grouped into seven named zygote, cleavage, blastula, gastrula, segmentation, pharyngula hatching periods. defined three (early, mid, late larvae). Additionally, main ontogenetic events during post-larvae early...
Seminal features of tambaqui were evaluated after hormonal induction spermiation with common carp pituitary extract. Seventeen adult (6.1 ± 0.9 kg, 62 6 cm) males collected from earthen ponds and transported to indoor concrete tanks. Semen was according volume, pH, osmolality, motility, concentration, viability, sperm morphometry morphological abnormalities. The semen white milky. volume 10.2 5.1 mL at pH 8.0 0.1, yielded a concentration 9.1 × 109 spermatozoa mL−1 while seminal plasma...
Intensive fish farming has resulted in an increased concern for disease outbreaks. Probiotic use is one of the strategies being developed to improve health and productivity. Measures probiotic colonization, growth performance, haematological characteristics parasite load were used evaluate effect diets supplemented with Enterococcus faecium on Arapaima gigas juveniles. A completely randomized design four treatments (diet E. at 1 × 106 CFU/g 108 CFU/g, control diet culture medium MRS) three...
The addition of salt to the water has been used mitigate stress and improve survival in fishes. This study investigated effects sodium chloride (0.0, 1.0, 3.0 6.0 g/l) on levels plasma cortisol, glucose, tryacilglycerol, total protein, hematocrit, hemoglobin, erythrocyte number, liver glycogen lipid, muscle lipid adult matrinxã(Brycon amazonicum) after a 4-h transport during 96-h recovery period. Fish were sampled before transport, 24 96 h Plasma cortisol was higher than initial condition...
ABSTRACT The phythotherapy is an alternative to use of chemotherapeutical agents against monogenean infection. This study evaluated the anthelmintic activity essential oil Ocimum gratissimum Cichlidogyrus tilapiae as well its acute toxicity in tilapia juveniles. mean lethal concentration (LC50) and different concentrations oil, both vitro vivo assays (short long-term baths) were assessed. LC50 was 40.70mg.L-1 assay this showed 80% efficacy at last two hours 65.87% bath. However, it provoked...
O objetivo deste trabalho foi testar a eficiência de tratamentos convencionais no controle da infestação do ictio jundiá (Rhamdia quelen). Vinte alevinos (3-6 cm) foram estocados em 28 aquários (10 L) durante 192 horas e submetidos aos seguintes tratamentos: controle, formalina comercial (0,2 mL L-1), permanganato potássio (1,3 mg sulfato cobre (0,63 sal comum g verde malaquita (0,05 L-1) elevação temperatura para 32°C. cobre, o reduziram número parasitas ao final experimento, podendo ser...
O conhecimento da proporção matéria-prima que será transformada em produtos finais para comercialização, bem como quantidade fará parte do resíduo processamento permite o planejamento logístico produção e os cálculos necessários a avaliação eficiência produtiva empresa processadora de pescado. jundiá Rhamdia quelen é um bagre nativo América Sul vem sendo estudado há alguns anos por vários grupos pesquisa latino-americanos, apresentando resultados atestam seu potencial piscicultura. objetivo...