A5009605289- Aquaculture Nutrition and Growth
- Fish biology, ecology, and behavior
- Water Quality and Pollution Assessment
- Reproductive biology and impacts on aquatic species
- Aquaculture disease management and microbiota
- Water Quality Monitoring Technologies
- Fish Biology and Ecology Studies
- Rural Development and Agriculture
- Livestock Management and Performance Improvement
- Agricultural and Food Sciences
- Agricultural Systems and Practices
- Fish Ecology and Management Studies
- Pharmaceutical and Antibiotic Environmental Impacts
- Aquatic life and conservation
- Environmental Toxicology and Ecotoxicology
- Freshwater macroinvertebrate diversity and ecology
- Wastewater Treatment and Reuse
- Aquatic Invertebrate Ecology and Behavior
- Moringa oleifera research and applications
- Organic Food and Agriculture
- Agricultural Economics and Practices
- Antibiotics Pharmacokinetics and Efficacy
- Wastewater Treatment and Nitrogen Removal
- Pesticide Residue Analysis and Safety
- Regional Development and Management Studies
Brazilian Agricultural Research Corporation
2016-2022
Secretaria do Meio Ambiente
2009-2020
Universidade Federal de Santa Maria
2006-2018
Ministry of Agriculture, Livestock, and Food Supply
2015
The use and validation of fish health monitoring tools have become increasingly evident due to aquaculture expansion. This study investigated the hematology blood morphometrics Piaractus mesopotamicus, Brycon orbignyanus, Oreochromis niloticus Rhamdia quelen. were kept for 30 days in 300-liter aquariums, after which they anesthetized with benzocaine was collected from caudal vessels. In comparison other species, B. orbignyanus presented highest hematocrit (Ht), RBC averages Mean Corpuscular...
O objetivo deste trabalho foi verificar o crescimento e a composição de filés juvenis jundiá (Rhamdia quelen) alimentados com diferentes fontes protéicas, durante 60 dias. Utilizaram-se 540 peixes (peso médio inicial=15,00±0,62g, comprimento total inicial=11,98±0,35cm) distribuídos ao acaso em 18 caixas 280L (30 peixes/caixa) sistema recirculação água. Testaram-se seis tratamentos (com três repetições): CL (farinha carne ossos + levedura), SL (farelo soja S (somente farelo soja), CS PL peixe...
The aim of this study was to evaluate the effect feeding frequency on water quality, growth performance, feed efficiency, and hematological parameters Nile tilapia reared in biofloc technology (BFT) over a period 45 days. Fish (n = 6,480; 5.36 ± 1.45 g) were randomly distributed nine outdoor circular tanks (9,000 L) with individual air-water lift by supplementary aeration hand-fed commercial diet (32% crude protein) at 5-3% biomass, following respective frequencies: two times per day, four...
O objetivo deste trabalho foi avaliar a influência de óleos vegetais no desenvolvimento corporal e composição do filé jundiás. Foram testadas seis dietas (32%PB), sendo avaliados arroz, canola ou soja com 5 10% inclusão, durante 90 dias. Os peixes (180, peso inicial=71,0±0,8g) foram distribuídos ao acaso em 18 caixas (280L) um sistema recirculação água, temperatura controlada. Para avaliação desempenho, estimaram-se variáveis como peso, comprimentos totais, padrão, altura caudal,...
Aiming at the sustainability of aquaculture production, producers should adopt tools and protocols for environmental monitoring management these enterprises. There are currently issues concerning efficacy data collection procedures limnological sampling low frequency, which is widely used by managers surveillance agencies. In this context, present study evaluated effectiveness high-frequency (HF) low-frequency (LF) monitoring. For HF, autonomous platforms (ADCP) were installed in a tropical...
Avaliou-se o desenvolvimento de juvenis carpa capim (Ctenopharyngodon idella) alimentados com teosinto (Euchlaena mexicana) e suplementados ração. Realizaram-se dois experimentos, 45 dias, utilizando 240 em cada um (peso médio: 10,9±0,3g 20,2±0,2g). No experimento 1, os peixes foram mais ração, 4 níveis suplementação: 2, 3 4% do PV, denominados S1, S2, S3 S4. testou-se: C=Somente Capim Teosinto; SD=Capim Teosinto+ Suplementação diária (3%PV); SA=Capim Teosinto + a dias R=Somente ração (3%...
Biomonitoring is a cheap and effective tool for evaluation of water quality, infer on the balance aquatic ecosystems. The benthic macroinvertebrates are bioindicators sensitive to environmental changes, can assist in detecting preventing impacts such as organic enrichment imbalance food chain. We compared structure communities artificial substrate samplers located places near far from net cages production Nile tilapia (Oreochromis niloticus). Samplers were manufactured with nylon net, using...
Este trabalho teve por objetivo avaliar a alimentacao com diferentes tipos de gramineas e suplementacao racao balanceada na recria carpa capim ( Ctenopharyngodon idella ). No experimento I foram utilizados 800 alevinos (peso inicial=5,5g), onde se avaliou 4 (milheto, teosinto, capim-elefante papua) peixes sobre o crescimento composicao corporal. Os resultados demonstraram que teosinto foi superior entre as avaliadas, porem, em todos os tratamentos, observou-se mobilizacao das reservas...
Abstract Aim In the present study, structure of benthic invertebrates in ponds presence and absence Nile tilapia was evaluated. Methods The macroinvertebrates physicochemical parameters were analyzed for a period eight weeks, every 15 days, two (one with fish other without fish). Benthic sampled artificial substrate samplers, made cheap common materials, like expanded clay, loofah leaves gravel. Results With exception turbidity, physical chemical variables water quality within ideal limits...
Este trabalho foi realizado para avaliar o uso de diferentes tamanhos particulas alimentares e a frequencia alimentacao no desempenho pos-larvas jundia ( Rhamdia quelen ). Foram utilizadas 3600 pos-larvas, distribuidas em um delineamento experimental inteiramente casualizado, durante 21 dias. As variaveis analisadas foram: comprimento total, padrao, peso, sobrevivencia, fator condicao produto peso versus sobrevivencia. Observou-se diferenca significativa (p=0,01), aos 7 dias, entre as medias...