Crescimento, desenvolvimento gonadal e composição muscular de matrinxãs (Brycon cephalus) submetidos à restrição alimentar e realimentação durante um ano Growth, gonadal development and composition of white and red muscles of matrinxã, Brycon cephalus submitted to food restriction and refeeding during a year [PDF]
Neste trabalho, avaliou-se o efeito da restrição de ração alternada com realimentação no crescimento, desenvolvimento gonadal e composição muscular de matrinxãs (Brycon cephalus) adultos, de ambos os sexos, durante um ano (janeiro de 1998 a janeiro de ...
Elisa Garcia Carvalho +1 more
doaj +3 more sources
Histopathological evaluation of the interrenal gland (adrenal homolog) of Japanese medaka (Oryzias latipes) exposed to graphene oxide [PDF]
Abstract Due to unique physicochemical properties and wide industrial and biomedical applications, graphene oxide (GO) is ubiquitous in the aquatic ecosystem. Using Japanese medaka (Oryzias latipes) fish as a model, we previously demonstrated minimal endocrine disrupting (ED) effects of GO on reproductive organs, and thyroids.
Asok K. Dasmahapatra, Paul B. Tchounwou
wiley +2 more sources
Standardization of 2-phenoxyethanol as anesthetic for juvenile Brycon cephalus (Gunther, 1869): the use in field procedures [PDF]
Hyper motility is a negative factor in fish handling procedures due to the risks of damages to the animals. Chemicals are widely used to anesthetize fish during biometry and many other handling procedures.
Luis Antônio Kioshi Aoki Inoue +2 more
doaj +4 more sources
Feeding of the Brycon cephalus, Triportheus elongatus and Semaprochilodus insignis (osteichthyes, characiformes) larvae in Solimões/Amazonas River and floodplain areas. [PDF]
Information on larval fish feeding is essential for understanding their trophic relations, including the management in conditions totally or partially controlled by humans.
Rosseval Galdino LEITE +1 more
doaj +2 more sources
Annulotrematoides Bryconi sp. n. (Monogenea: Dactylogyridae) Parasitic on Brycon cephalus (Osteichthyes: Characidae) From Brazil [PDF]
Annulotrematoides bryconi sp. n. is described and illustrated from specimens collected from gills of characiform fish, Brycon cephalus (Günther, 1869), in pisciculture ponds from Pirassununga, São Paulo, Brazil. Diagnostic characters of the new species are the tegument of trunk showing annulations, except on the cephalic regiona, and copulatory complex
José Luis Fernando Luque Alejos
exaly +3 more sources
Com o objetivo de avaliar a influência da densidade de estocagem no cultivo de alevinos de matrinxã (Brycon cephalus), foram utilizados 300 alevinos com peso inicial de 2g ± 0,82g e comprimento inicial de 5,7cm ± 0,74cm, distribuídos em 20 tanques (200L).
Nandeyara Ribeiro Marques +3 more
doaj +2 more sources
SELEÇÃO E CARACTERIZAÇÃO DE FíÅ MEAS DE MATRINXí, Brycon cephalus, INDUZIDAS A REPRODUÇÃO [PDF]
Vinte e duas fêmeas (22) de matrinxã, Brycon cephalus (Günther, 1869), em cativeiro, foram selecionadas por meio de aspectos externos (ventre abaulado e papila genital saliente) e caracterizadas através da morfologia dos ovócitos (distribuição de ...
Elizabeth ROMAGOSA +3 more
doaj +2 more sources
Many chemicals have been used as anaesthetics in fish farms and fish biology laboratories to keep the fish immobilized during handling procedures and to prevent accidents and animal stress.
Luis Antônio Kioshi Aoki Inoue +2 more
doaj +2 more sources
Plasma Electrolyte Disturbance in Matrinxä,Brycon cephalusTransported Under Influence of Benzocaine
Abstract Physiological responses of matrinxa Brycon cephalus to hauling operations with benzocaine in the water were assessed. Thirty fish (mean weight =1.0 kg) were transported for 4 hours in 200-L tanks containing different concentrations of benzocaine: 0,5,10, and 20 mg/L.
Carneiro, Paulo Cesar Falanghe +1 more
openaire +3 more sources
Effects of Dietary Aflatoxin B1 on Hybrid Grouper (Epinephelus fuscoguttatus ♀ × Epinephelus lanceolatus ♂) Growth, Intestinal Health, and Muscle Quality [PDF]
This study investigated the effects of varying doses of dietary aflatoxin B1 (AFB1) on the growth, intestinal health, and muscle quality of hybrid grouper. Four diets with varying AFB1 concentrations (0, 30, 445, and 2,230 μg kg−1) were used. Elevating AFB1 concentrations led to a decline in growth indexes, specifically the weight gain rate and the ...
Hao Liu +9 more
wiley +2 more sources

