Results 11 to 20 of about 9,265 (208)

Determinação da dose inseminante e embriogênese na fertilização artificial de tambaqui (Colossoma macropomum) [PDF]

open access: goldArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2013
Determinou-se a dose inseminante para fertilização artificial e descreveu-se o desenvolvimento embrionário de tambaqui (Colossoma macropomum). Os gametas foram coletados de reprodutores induzidos hormonalmente.
L.V. Leite   +6 more
doaj   +2 more sources

Molecular characterization of Serrasalmidae hybrid in the upper Paraná River floodplain using molecular markers. [PDF]

open access: yesJ Fish Biol
Abstract This study reports the molecular identification of a tambacu—a hybrid of Colossoma macropomum and Piaractus mesopotamicus—in the floodplain of the upper Paraná River using molecular markers. The PCR‐GEL method, based on the analysis of COI and TROP fragments, successfully characterized the hybrid, while PCR‐SEQ, employing RAG2 and TROP markers,
Ramos LI   +4 more
europepmc   +2 more sources

Weight-Length Ratio of Piranhas <i>Serrasalmus</i> (Characiformes, Serrasalmidae) in Bolivia: Relationships to Molecular Divergence and Maximum Size? [PDF]

open access: yesEcol Evol
This study presents WLRs of nine piranha or palometa fish species of genus Serrasalmus present in the Amazon and La Plata basins of Bolivia and compares differences with genetic divergence (mtDNA COI locus) and the observed maximum size. All species showed an exponential (power type) growth pattern, and all WLRs were significantly different among all ...
Carvajal-Vallejos FM   +3 more
europepmc   +2 more sources

Hematological parameters and plasma biochemistry of tambaqui (Colossoma macropomum) from fish farms in the Amazon Region [PDF]

open access: yesAnais da Academia Brasileira de Ciências
The tambaqui Colossoma macropomum is the main species of edible fish originating from fish farming in the Amazon region. This study aimed to determine and compare the blood physiology of tambaqui from fish farms in municipalities in the Metropolitan ...
FLÁVIA DAYANE F. FARIAS   +5 more
doaj   +1 more source

Less feed does not mean lower growth: The impact of feeding frequency on fishes reared in BFT enriched with sodium chloride [PDF]

open access: yesRevista Brasileira de Zootecnia
The objective of this work was to analyze the impact of different feeding frequencies on the growth and hematological parameters of freshwater fish species (tambaqui, Colossoma macropomum; matrinxã, Brycon amazonicus) subjected to biofloc technology ...
Thiago Marinho-Pereira   +4 more
doaj   +1 more source

Loss of genetic variability at the transferrin locus in five hatchery stocks of tambaqui (Colossoma macropomum)

open access: yesGenetics and Molecular Biology, 2000
Knowledge and conservation of the genetic variability in stocks maintained as live gene banks have become a high priority task for Brazilian fish culture.
Daniela Calcagnotto   +1 more
doaj   +1 more source

Physiological responses of tambaqui (Colossoma macropomum) fed diets supplemented with silage from fish and vegetables residues

open access: yesBrazilian Journal of Biology, 2022
The demand for products to replace high-cost raw materials, such oil and fish meal, in the manufacture of feed for use in aquaculture, while also guaranteeing the nutritional quality of the diets, is increasing.
M. N. F. Costa   +4 more
doaj   +1 more source

Influência da biomassa inicial sobre o crescimento e a produtividade de peixes em sistema de policultivo Effects of initial biomass on fish growth and fishery productivity in polyculture systems

open access: yesCiência e Agrotecnologia, 2006
Analisou-se o crescimento dos peixes, a composição das espécies e a produtividade de quatro policultivos (P75, P78, P87 e P207), visando melhorar o manejo e a produtividade pesqueira dos pequenos açudes (0,1-5,0ha) do Semi-Árido brasileiro. Simulou-se as
Zélia Maria Pimentel Nunes   +2 more
doaj   +1 more source

Growth Performance and Histomorphology of Intestine, Skin, Gills and Liver of Juvenile Colossoma macropomum Fed Diets Containing Different Levels of the Essential Oil of Nectandra grandiflora

open access: yesFishes, 2023
The present study evaluated different levels of the essential oil of Nectandra grandiflora (EONG) in the diet of juvenile Colossoma macropomum. The juveniles (0.75 ± 0.05 g) were fed four experimental diets with differing levels of EONG (0, 0.5, 0.75 ...
Fabio A. C. Santos   +11 more
doaj   +1 more source

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