Results 41 to 50 of about 744 (155)

Comparative Evaluation of Feeding Tiger Puffer (Takifugu rubripes) With Trash Fish and Formulated Feeds on Growth Performance, Flesh Quality, Antioxidant, and Immunity Capacity

Aquaculture Nutrition, Volume 2026, Issue 1, 2026.
This study evaluated the effects of replacing trash fish (TF) with formulated feeds in tiger puffer (Takifugu rubripes) on the growth performance, liver and serum biochemical indices, flesh quality, and metabolomics. Fish (39.6 ± 0.2 g) were fed TF, commercial feed (CF), and self‐formulated feed (SF) for 8 weeks. Results indicated that CF and SF groups
Zhen Xu, Hang Yang, Xiaoying Xu, Weidong Li, Huawei Li, Wenbing Zhang, Chenghui Li, Haien Zhang, Zhenda Zhang, Xianyong Bu   +9 more
wiley   +1 more source

Salinity on artificial reproduction of silver catfish (Rhamdia quelen) [PDF]

Ciência Rural, 2015
Attempting to improve reproduction performance and ichthyo prophylaxis, this study evaluated the effects of maintaining silver catfish (Rhamdia quelen) broodstock in different saline concentrations (0, 2, 4, 6 and 8‰) on gametes quality and reproductive viability.
Martins, Gabriel Bernardes, Piedras, Sérgio Renato Noguez, Pouey, Juvêncio Luís Osório Fernandes, Bongalhardo, Denise Calisto, Robaldo, Ricardo Berteaux   +4 more
openaire   +4 more sources

Vitamin C Alleviates Oxidative Stress in Silver Carp (Hypophthalmichthys molitrix) Fingerlings Exposed to Toxicity Induced by Temephos and Buprofezin

Aquaculture Research, Volume 2026, Issue 1, 2026.
Context Organophosphates and chitin synthesis inhibitor pesticides pose a significant indirect threat to fish populations, necessitating effective remedial measures. Objective Supplementation with vitamin C (Vit C) in fish feed as a counteracting strategy to mitigate pesticides effect was explored in silver carp (Hypophthalmichthys molitrix ...
Sumaira Hassan, Irfan Zia Qureshi, Modhi O. Alotaibi, Mitesh Patel, Mohd Adnan, Nawaf Alshammari, Shakira Ghazanfar   +6 more
wiley   +1 more source

Biologia reprodutiva e desova induzida de duas espécies de bagres (Osteichthyes: Siluriformes) da bacia do rio São Francisco - DOI: 10.4025/actascibiolsci.v28i3.227

Acta Scientiarum: Biological Sciences, 2007
Rhamdia quelen e Pseudopimelodus charus são dois bagres que atingem porte acima de 2 kg. Espécimes receberam dose única de extrato bruto de hipófise de carpa comum EBHC (2,5 mg kg-1 de peixe nos machos e 6 mg kg-1 de peixe nas fêmeas).
Edson Vieira Sampaio, Yoshimi Sato
doaj   +1 more source

Rendimento e viabilidade da extração de hipófise de jundiá (Rhamdia quelen) Silver catfish (Rhamdia quelen) pituitary yield and viability

Ciência Rural, 2011
O extrato hipofisário é provavelmente o indutor hormonal para desova e espermiação mais utilizado em piscicultura. A possibilidade de o produtor ter uma nova fonte de renda motivou a execução deste trabalho. O objetivo foi verificar o rendimento da hipófise no jundiá (Rhamdia quelen), em função do peso, e analisar a viabilidade econômica de sua ...
Carine de Vargas Colpo, Mauro Alves da Cunha, Tanise dos Santos Medeiros, Bernardo Baldisserotto   +3 more
openaire   +2 more sources

Molecular phylogeny reveals a new species of ghost electric knifefish Porotergus Ellis 1912 (Gymnotiformes: Apteronotidae), from the Amazon basin

Journal of Fish Biology, Volume 107, Issue 5, Page 1519-1531, November 2025.
Abstract A new species of ghost electric knifefish, Porotergus sambaibensis sp. nov., is described from the Javaés River, a tributary of the Araguaia River in Brazil. The new species was assigned to the genus Porotergus as the closest relative to Porotergus gimbeli through maximum likelihood reconstruction of a concatenated multilocus dataset ...
Marina B. Mendonça, Luiz A. W. Peixoto, Carine C. Chamon, A. Akama, C. David de Santana   +4 more
wiley   +1 more source

Temperatures for fertilization and hatching and their influence on determining the sex ratio of the silver catfish Rhamdia quelen - doi: 10.4025/actascibiolsci.v32i2.5261

Acta Scientiarum: Biological Sciences, 2010
This study aimed to evaluate the effects of water temperature during fertilization and egg incubation in the determination of the sex ratio of fingerlings of silver catfish Rhamdia quelen.
Ricardo da Silva Longo, Alex Pires de Oliveira Nuñer   +1 more
doaj   +1 more source

Evolutionary history of Middle American Rhamdia (Siluriformes: Heptapteridae) inferred from comparative mitogenomic data: Insights on historical biogeography and cave colonization in the group

Journal of Systematics and Evolution, Volume 63, Issue 6, Page 1501-1518, November 2025.
Investigating the systematics and biogeography of Neotropical catfishes of the genus Rhamdia refined phylogenetic hypotheses, including deep paraphyly of Rhamdia laticauda, supported northward dispersal catalyzed by emergence of the Panamanian Isthmus and imply that cave colonization is widespread, convergent, and recent, with established cave‐dwelling
Jairo Arroyave, Adán Fernando Mar‐Silva, Bruno F. Melo, Sonia Gabriela Hernández‐Ávila, Jesús M. López‐Vila, Gabriel S. C. Silva, Píndaro Díaz‐Jáimes   +6 more
wiley   +1 more source

Essential oils from Citrus x aurantium and Citrus x latifolia (Rutaceae) have anesthetic activity and are effective in reducing ion loss in silver catfish ( Rhamdia quelen )

Neotropical Ichthyology, 2018
This study investigated the anesthetic effect of the essential oils (EOs) from the peel of Citrus x aurantium (EOCA) and Citrus x latifolia (EOCL) on silver catfish Rhamdia quelen.
Jane Mello Lopes, Carine de Freitas Souza, Bianca Schindler, Carlos Garrido Pinheiro, Joseânia Salbego, Jefferson Costa de Siqueira, Berta Maria Heinzmann, Bernardo Baldisserotto   +7 more
doaj   +1 more source

Concentrados proteicos vegetais na alimentação de Jundiás (Rhamdia quelen) [PDF]

Ciência Rural, 2013
O objetivo deste estudo foi avaliar fontes de concentrados proteicos vegetais alternativos em substituição ao farelo de soja sobre o desempenho e composição centesimal de jundiás (Rhamdia quelen) e coloração dos filés. Foram utilizadas 20 unidades experimentais, com capacidade de 90L cada uma, onde 400 peixes permaneceram alojados durante 45 dias.
Tyska, Denize, Mallmann, Carlos Augusto, Corrêia, Viviani, Tamiosso, Camila Durlo, Mallmann, Adriano Olnei, Radünz Neto, João   +5 more
openaire   +4 more sources