Results 11 to 20 of about 2,932 (193)

Optimum dietary crude protein requirement for juvenile cachama Piaractus brachypomus Exigência ótima de proteína bruta para juvenis de pirapitinga, Piaractus brachypomus [PDF]

Ciência Rural, 2011
A growth experiment was conducted to determine the optimal dietary protein requirement for juvenile cachama, Piaractus brachypomus. Six semi-purified isoenergetic experimental diets using casein and gelatin as protein sources were formulated to contain ...
Wálter Vásquez-Torres, Manoel Pereira-Filho, Jose Alfredo Arias-Castellanos   +2 more
doaj   +6 more sources

Seasonality of reproduction of Piaractus brachypomus in South Bolivia [PDF]

, 2008
The reproductive period of Piaractus brachypomus is short in South Bolivia. This area is close to the Southern limit of the species and conditions favourable to its reproduction last for only a few months.
Arana, N. C., Dugué, Remi, Duponchelle, Fabrice, Legendre, Marc, Nunez, Jesus, Renno, Jean-Francois, Shikema, R. K. A.   +6 more
core   +3 more sources

Estudo morfológico de células sanguíneas de Piaractus brachypomus (Cuvier, 1817)

Pubvet, 2018
O estudo morfológico de células sanguíneas é considerado como a base para diversas pesquisas, uma vez que a forma da célula, disposição do seu núcleo e o nível de condensação da cromatina são de fácil observação, além de detectar patologias que causam ...
Claudia Antonia Campos Rodrigues de OLiveira, Flávia Cristina Matos Oliveira, Paulo Sérgio dos Santos Souto   +2 more
doaj   +2 more sources

Parasitic infections of Piaractus mesopotamicus and hybrid (P. mesopotamicus xPiaractus brachypomus) cultured in Brazil [PDF]

Revista Brasileira de Parasitologia Veterinária, 2013
This study evaluated the occurrence of parasitic infections in the “pacu” fish Piaractus mesopotamicus and the “patinga” hybrid (P. mesopotamicus x Piaractus brachypomus) in the northwest of São Paulo State, Brazil.
Lidiane Franceschini, Aline Cristina Zago, Sérgio Henrique Canello Schalch, Fabiana Garcia, Daiane Mompean Romera, Reinaldo José da Silva   +5 more
doaj   +5 more sources

Acute toxicity and histopathological alterations of Roundup® herbicide on "cachama blanca" (Piaractus brachypomus) Toxicidade aguda e alterações histopatológicas induzidas pelo herbicida Roundup® em pirapitinga (Piaractus brachypomus)

Pesquisa Veterinária Brasileira, 2008
Acute toxicity of the glyphosate -N (phosphonomethyl) glycine- herbicide, Roundup®, in juveniles of cachama blanca, (Piaractus brachypomus), was evaluated and the histopathological lesions were assessed.
Wilson F. Ramírez-Duarte, Iang S. Rondón-Barragán, Pedro R. Eslava-Mocha   +2 more
doaj   +2 more sources

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

J 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, de Páris Paz E, Cavalcanti LD, Takemoto RM, de Oliveira AV.   +4 more
europepmc   +2 more sources

Contribution of Amino Acids in Cereal Grain Products to Precision Feed Formulation for Tambaqui (Colossoma macropomum) Using a Digestibility Approach. [PDF]

J Anim Physiol Anim Nutr (Berl)
ABSTRACT Although cereal grain products have low protein content, they can contribute up to 25% of total protein in low‐trophic level/omnivorous fish diets. Thus, understanding the amino acid contribution of these ingredients becomes crucial for meeting the dietary requirements of omnivorous fish.
Proença DC, Sena MF, Araújo JG, Bueno GW, Guimarães IG.   +4 more
europepmc   +2 more sources

Molecular Characterization of Neurogranin (NRGN) Gene from Red‑Bellied Pacu (Piaractus brachypomus). [PDF]

Mol Neurobiol, 2023
AbstractNeurogranin (NRGN) is a small brain protein expressed in various telencephalic areas and plays an essential role in synaptic plasticity by regulating the availability of calmodulin (CaM). The study aims to characterize the neurogranin gene in Colombian native fish, red-bellied pacu, Piaractus brachypomus, its basal tissue expression and ...
Rueda-García V, Rondón-Barragán IS.
europepmc   +3 more sources

Genetic Characterization of the Fish Piaractus brachypomus by Microsatellites Derived from Transcriptome Sequencing. [PDF]

Front Genet, 2018
The pirapitinga, Piaractus brachypomus (Characiformes, Serrasalmidae), is a fish from the Amazon basin and is considered to be one of the main native species used in aquaculture production in South America. The objectives of this study were: (1) to perform liver transcriptome sequencing of pirapitinga through NGS and then validate a set of ...
Jorge PH, Mastrochirico-Filho VA, Hata ME, Mendes NJ, Ariede RB, de Freitas MV, Vera M, Porto-Foresti F, Hashimoto DT.   +8 more
europepmc   +8 more sources

Identification and Counting of Pirapitinga Piaractus brachypomus Fingerlings Fish Using Machine Learning. [PDF]

Animals (Basel)
Identifying and counting fish are crucial for managing stocking, harvesting, and marketing of farmed fish. Researchers have used convolutional networks for these tasks and explored various approaches to enhance network learning. Batch normalization is one technique that improves network stability and accuracy.
Souza AS, Costa AC, França HFDC, Nuvunga JJ, Ferreira de Melo GA, Lima LDC, Kretschmer VV, de Oliveira DÁ, Horn LD, Rezende IR, Fernandes MP, Reis Neto RV, Freitas RTF, Oliveira RF, Viadanna PH, Vitorino BM, Minafra CS.   +16 more
europepmc   +4 more sources