A5016766760- Aquaculture Nutrition and Growth
- Reproductive biology and impacts on aquatic species
- Fish Ecology and Management Studies
- Fish biology, ecology, and behavior
- Aquaculture disease management and microbiota
- Fish Biology and Ecology Studies
- Genetic and phenotypic traits in livestock
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Aquatic Ecosystems and Biodiversity
- HIV-related health complications and treatments
- Animal Nutrition and Physiology
- Water Quality Monitoring Technologies
- Venomous Animal Envenomation and Studies
- Liver Disease Diagnosis and Treatment
- Nutrition and Health in Aging
- Genetics and Plant Breeding
- Physiological and biochemical adaptations
- Insect and Pesticide Research
- Wheat and Barley Genetics and Pathology
- Toxin Mechanisms and Immunotoxins
- Transgenic Plants and Applications
- Amphibian and Reptile Biology
- Mycotoxins in Agriculture and Food
- Clostridium difficile and Clostridium perfringens research
- Chemical Safety and Risk Management
Universidade Federal de Minas Gerais
2015-2024
Instituto de Investigaciones en Ciencias de la Salud
2023
The Nile tilapia (Oreochromis niloticus) is economically one of the most important freshwater fish and an excellent model for studies under laboratory conditions. Temperature considered a very modulator reproductive activity in fish, although few have specifically addressed effects this key factor on morphological functional aspects teleost testes. Therefore, our main objectives present study were to analyze different temperatures (20, 25, 30, 35 degrees C) testicular somatic germ cells...
The Tityus serrulatus scorpion is considered the most dangerous in Brazil and responsible for several cases of human envenomation annually.In this study, we performed transcriptome profiling T. venom gland.In addition to transcripts with housekeeping functions, such as those related protein synthesis, energy supply structural processes, from thirty-five families peptides or proteins were identified.These included three new complete sequences toxins more than a dozen putative gland...
The biofloc technology (BFT) has recently gained attention as an economic and environmentally sustainable system for aquaculture. use of BFT with salinized water could be used to minimize the negative effects nitrogenous waste improve growth performance Nile tilapia. This work evaluated performance, survival, gill lesions, fillet composition tilapia fingerlings (Oreochromis niloticus) reared during 70 days different salinities (0, 4, 8, 12, 16 g/L) in a previously developed. results...
Fish germ cell transplantation presents several important potential applications for aquaculture, including the preservation of germplasm from endangered fish species with high genetic and commercial values. Using this technique in studies developed our laboratory adult male Nile tilapias (Oreochromis niloticus), all necessary procedures were successfully established, allowing production functional sperm healthy progeny approximately 2 months after allogeneic transplantation. In present...
Biofloc technology (BFT) provides an additional feed source for aquatic organisms through the conversion of waste in microbial flocs. Because this, suitable protein level a diet animals this system could be different from those conventional systems. Our objective was to determine Nile tilapia juveniles reared with BFT. Two experiments were carried out weighing ~10 g (first experiment) and about 50 (second during 61 98 days respectively. Five crude (CP) levels (within 17% 33%) tested. The...
Mycotoxins are toxic secondary metabolites produced by a variety of fungi, which when ingested can cause several deleterious effects to the health humans and animals. In this work, detection quantification six major mycotoxins (aflatoxins—AFLA, deoxynivalenol—DON, fumonisins—FUMO, ochratoxin A—OTA, T-2 toxin—T-2 zearalenone—ZON) in 1749 samples feed ingredients for cattle, collected Brazil between 2017 2021, was carried out using enzyme-linked immunosorbent assay (ELISA). total, 97% were...
Summary Background Results of studies evaluating the effect viral eradication following direct‐acting antiviral (DDA) therapy on skeletal muscle mass patients with chronic hepatitis C (CHC) are scarce. Aim To assess components sarcopenia (low mass, low strength and physical performance) in a cohort CHC individuals before after DAA therapy. Methods We performed longitudinal study who underwent body composition assessment (T0), at 12 (T1) 48 (T2) weeks DDA Bioelectrical Impedance Analysis was...
Epsilon toxin produced by Clostridium perfringens types B and D causes enterotoxemia in sheep, goats calves.Enterotoxemia can cause acute or superacute disease, with sudden death of the affected animal.It provokes huge economic losses when large numbers livestock are affected.Therapeutic intervention is challenging, because disease progresses very rapidly.However, it be prevented immunization specific immunogenic vaccines.We cloned etx gene, encoding epsilon toxin, into vector pET-11a;...
Feeding strategies of tilapia (initial average weight: 32 g) cultivated with Biofloc technology (BFT) (carbon source: sugarcane, C:N ratio: 6:1) for 56 days were studied. A 4 × 3 factorial experimental design was used four feeding frequencies (one, two, three and times a day) rates (50%, 75% 100% consumption in relation to apparent satiety), replicates. Lower levels dissolved oxygen, protein retention rate body content found fish fed once day. The reduction resulted lower final weight...
Reproductive biology and feeding of Curimatella lepidura (Eigenmann & Eigenmann, 1889) were studied in Juramento reservoir, São Francisco River basin, Southeastern Brazil. Histological analyses gonadosomatic indexes revealed females males reproductive activity from October to March total spawning occurring January coupled with the peak spermiating males. In dry season, fishes accumulated energetic reserves for reproduction during a short rainy season. The species presented sexual...
The objective of this study was to assess the possibility increasing stocking density in larviculture Nile tilapia, Oreochromis niloticus, saline water. Six-day post-hatched larvae (average weight 0.09±0.002 g), at start exogenous feeding, were stocked twelve 8 L tanks densities 1, 10, 20 and 30 larvae/L. fed a diet consisting 40% crude protein five times per day. During larviculture, water kept salinity 2 g common salt/L. At end 28-day experiment, survival rate, length, weight, temperature,...
The objectives of this study were to evaluate the reproductive cycle, morphological changes ovary and mobilization energy reserves in Nile tilapia reared with biofloc technology (BFT). In general, growth performance highly similar between BFT Control system (clear water). Difference systems was found hepatosomatic index (using mixed-effects models), which suggested that can alter post-spawning period. absolute relative fecundity, fertilization rate, number larvae produced per female,...
Recent studies with Nile tilapia have shown divergent results regarding the possibility of selecting on morphometric measurements to promote indirect genetic gains in fillet yield (FY). The use selection for traits is important as these are only measurable after harvesting. Random regression models a powerful tool association identify best time point measure and select animals. can also be applied multiple trait approach analyze response selection, which would avoid need sacrifice candidate...
Resumo: O objetivo deste trabalho foi determinar o coeficiente de digestibilidade aparente (CDA) seis ingredientes, em dietas-referência prática e purificada, a influência das sobre dos ingredientes juvenis pacamã. Avaliaram-se os seguintes ingredientes: farinha peixe, carne ossos, farelo soja, soja integral tostada, trigo protenose milho. Houve interação entre dieta-referência estudados. A dieta purificada proporcionou maior CDA quanto à proteína bruta energia bruta. pacamã apresentou CDAs...