15 articles in this issue
Airton Antonio Castagna, José Teixeira Seixas Filho, Eliane Rodrigues, Sílvia Conceição Reis Pereira Mello, Jorge Luiz Pereira Lima, Marcelo Maia Pereira (Autor)
Feeding is one of the major factors that influences the growth and development of animals, justifying thus the present experiment that analyzed the effect of the number of feeding environments on the performance of bullfrog tadpoles through the growth (we... see more
Luzia Alice Ferreira de Moraes, José Vanderli Andreata, Bruno Teixeira de Oliveira (Autor)
Fish fauna is considered a good indicator of water quality. The Rodrigo de Freitas Lagoon is located in Rio de Janeiro city with a great scenic beauty. However, along the years, the Lagoon has been negatively impacted by human activities which can be seen... see more
Thálita Stefann Ribeiro Nascimento, Marta Verardino De Stéfani, Euclides Braga Malheiros, Teresa Cristina Ribeiro Dias Koberstein (Autor)
This study aimed to evaluate the effect of vitamin E on reproductive responses of female tilapia (Oreochromis niloticus). To this, isonitrogenous and isocaloric diets with different levels of vitamin E supplementation (200, 300, 400, and 500 mg kg-1) were... see more
Douglas Junior Bertoncelli, Marisa de Cacia Oliveira, Amanda Izabel dos Passos, Ana Claudia Ariati, Alexandre Osmar Ortolan, Elaine de Paula Witt (Autor)
Obtaining cells of Physalis pubescens is of interest for studies of primary and secondary metabolic pathways, in the search for new active molecules. Our objectives were to evaluate the regeneration potential of explants from different parts of the plant,... see more
Juliana Mesquita Freire, Celeste Maria Patto de Abreu, Stella Maris da Silveira Duarte, Fernanda Borges Araújo de Paula, Adriene Ribeiro Lima (Autor)
Oxidative stress is an imbalance between reactive oxygen species and antioxidant capacity of action. Thus, research, alternative to mitigate the damaging effects of oxidative stress, improving the body´s antioxidant capacity, prevented the disease and its... see more
Heleno Brandão, Julio Cesar de Oliveira Santana, Igor Paiva Ramos, Edmir Daniel Carvalho (Autor)
This study evaluated the diet and reproductive aspects of the population of Pimelodus maculatus around net cage fish farming in order to assess the possible impacts of this activity. Monthly collections were performed from March 2008 to February 2009 on t... see more
Cristina Márcia de Menezes Butakka, Susana Trivinho-Strixino, Gisele Daiane Pinha, Alice Michiyo Takeda (Autor)
To investigate the emergence of Chironomidae in different habitats of a floodplain lake of the upper Paraná river floodplain, four collection points were established: marginal regions (one with numerous macrophytes species, other dominated by only Polygon... see more
Carolina Antonieta Lopes, Valquíria Garcia, David Augusto Reynalte-Tataje, Evoy Zaniboni-Filho, Alex Pires de Oliveira Nuñer (Autor)
This study aimed to evaluate the temporal distribution of fish eggs and larvae in the Forquilha river (upper Uruguay river/Brazil) and its relationship with environmental variables. Ichthyoplankton and abiotic factors were sampled from September 20... see more
Carina Moresco, Liliana Rodrigues (Autor)
Periphytic diatoms were sampled from two streams, one located in an urban area and the other located in a rural area, in Maringá, State of Paraná, Brazil. In addition to temporal variability, differences in the assemblage structure between streams were ev... see more
Maria da Graça de Souza Lima, Nei Fernandes Lopes, Paulo Dejalma Zimmer, Geri Eduardo Meneghello, Cibele Ferrari, Cristina Rodrigues Mendes (Autor)
The present study aimed to identify salinity-tolerant genes in three cultivars (BRS-7 Taim, BRS Querência and BRS Atalanta) of Oryza sativa L. ssp. indica S. Kato and in three cultivars (BRS Bojurú, IAS 12-9 Formosa and Goyakuman) of Oryza sativa L... see more
Abhijit Poddar, Tushar Kanti Ghara, Subhas Chandra Jana (Autor)
The combined effects of significant physical and chemical factors affect hyperthermostable ß amylase production under submerged fermentation by Bacillus subtilis DJ5. The above was studied using the experimental design and response surface methodology. A ... see more
Luiz Antonio de Souza, Higor Simionato Dariva, Luciane da Silva Santos, Eloiza Muniz Capparros (Autor)
Chamaesyce prostrata (Aiton) Small, Euphorbia heterophylla L. and Euphorbia graminea Jacq. are weedy species that occur with relative frequency in the region of Maringá, Paraná State, Brazil. Data about the morphology and anatomy of seedlings of these spe... see more
Jenny Paola Corredor Prado, Diana Marcela Morales Londonõ, Vivian Almeida, Gustavo Brunetto, Rosete Pescador (Autor)
Despite the ecological importance of bromeliads, the basic knowledge about the physiological aspects in some species is poorly understood. The aim of this study was to physiologically characterize the species Nidularium campo-alegrense Leme and Aechmea or... see more
Francisco Estevão Carneiro, Gustavo Valadares Barroso, Roger Strapazzon, Geraldo Moretto (Autor)
Varroa destructor mite causes mortality of Apis mellifera bees throughout the world. Its greatest damage to these colonies has been reported in European countries and North America. The impact of the mite is related to the climate and the bee race on each... see more
Adriana Oliveira Guimarães, Fábio Menezes Valença, Joselita Barbosa Silva Sousa, Sandra Araujo Souza, Rubens Riscala Madi, Cláudia Moura Melo (Autor)
This study analysed the prevalence of parasitic and fungal infections in rodents in an area of urban expansion, Aracaju, Brazil. Traps were placed in the area from December 2011 to January 2013. Blood samples, faeces and hair were collected from the anima... see more