Results 21 to 30 of about 1,652 (185)
AVALIAÇÃO DOS EFEITOS GENOTÓXICOS DO FUNGICIDA RIDOMIL EM Astyanax altiparanae (PISCES, CHARACIFORMES) [PDF]
O fungicida Ridomil é classificado como um agrotóxico muito perigoso ao meio ambiente (classe II), de alta persistência e alto potencial de deslocamento no solo, podendo atingir águas subterrâneas.
Matozo, Francielle +2 more
core +3 more sources
Replacement of animal protein with vegetable protein in the diets of Astyanax altiparanae
The aim of this study was to evaluate the effect of replacing animal protein with vegetable protein sources on the productive performance of Astyanax altiparanae (lambari-do-rabo-amarelo).
Fábio Rosa Sussel +5 more
doaj +5 more sources
Efeitos citotóxicos de um herbicida a base de glifosato no peixe Astyanax altiparanae [PDF]
A constante preocupação em otimizar a produtividade agrícola frente a demanda aumentada por alimentos, traz consigo uma crescente utilização de pesticidas visando proteger as lavouras contra pragas.
Ghisi, Nédia de Castilhos +3 more
core +3 more sources
Effects of triploid induction on innate immunity and hematology in Astyanax altiparanae
Triploid induction is a promising biotechnique that could be used to enhance aquaculture yields in the near future. However, studies conducted with several fish species have demonstrated that the presence of an extra set of chromosomes may result in deleterious health effects.
Nycolas Levy-Pereira +7 more
openaire +4 more sources
Factors affecting secondary sex characteristics in the yellowtail tetraAstyanax altiparanae [PDF]
AbstractThis work aimed to analyze factors affecting secondary sexual characteristics in the yellowtail tetraAstyanax altiparanae.For this, seventy-five specimens were first separated into three different size classes (small, medium and large groups) between two seasons, summer and winter. In all groups, male fish were consistently bigger in the summer.
Siqueira-Silva, Diógenes H. +7 more
openaire +4 more sources
Attempts for Increasing Astyanax Altiparanae Spawning Rates and Percentage of Responsive Oocytes
In this study, we aimed to propose changes in the protocol of cultured Astyanax altiparanae hypophysation to increase the maximum ovulation rate of 60% registered previously. To that two consecutive experiments were conducted. In the first experiment, three carp pituitary homogenate (CPH) doses (3, 6, and 9 mg/kg) were administered in a single ...
Ariki, Daniel Guimarães Figueiredo +4 more
openaire +2 more sources
Astyanax fishes are among the most important food-web components of South America rivers. In the Iguaçu River basin, the Astyanax genus is represented mainly by endemic species.
Prioli Sônia M.A.P. +7 more
doaj +3 more sources
A meta‐analytic review of monoterpene for fish anaesthesia
Abstract The use of anaesthetic agents has been increasing to address the welfare needs of different fish species in scientific and aquaculture practices. MS‐222 is the most used synthetic anaesthetic but some limitations and side effects have been reported.
Luís Félix +3 more
wiley +1 more source
Abstract The Sry‐related high mobility group box (Sox) genes family is a group of transcription factors playing crucial roles during reproduction and development. At least 50% amino acid sequences of Sox protein family are similarity to the sex‐determining region on the Y chromosome (Sry).
Yacheng Hu, Binzhong Wang, Hejun Du
wiley +1 more source
Simple Field Storage of Fish Samples for Measurement of DNA Content by Flow Cytometry
Abstract Flow cytometry is an effective and widely used tool for determination of ploidy in fish, but it is not always possible to access the fresh samples for analysis. We investigated the potential for extended storage of fish tissue with sterlet and tench as representative species of Chondrostei and Teleostei, using blood and fin of subadult/adult ...
Martin Hubálek, Martin Flajšhans
wiley +1 more source

