Results 11 to 20 of about 2,443 (197)

Growth performance of three pejerrey genetic groups in intensive culture system

Semina: Ciências Agrárias, 2014
This study examined the growth performance of Odontesthes bonariensis, O. humensis and hybrid (O. bonariensis X O. humensis) in intensive culture system for a period of 180 days, using the body weight (W), total length (Lt), condition factor (CF ...
Rafael Aldrighi Tavares , Sérgio Renato Noguez Piedras , João Morato Fernandes , Juvêncio Luis Osório Fernandes Pouey , Verônica Hammes Garcia , Heden Luiz Marques Moreira, Nelson José Laurino Dionello   +6 more
doaj   +5 more sources

Main diseases of pejerrey (Odontesthes bonariensis) in central Argentina Principais enfermidades do peixe-rei (Odontesthes bonariensis) registradas na Argentina Central [PDF]

Pesquisa Veterinária Brasileira, 2006
Argentina's central region includes an important area covered by shallow pampean lakes and dams. In these environments, fishing of pejerrey Odontesthes bonariensis Valenciennes, 1835 (Pisces, Atherinopsidae), the most important fresh-water fish of the ...
M. Mancini, C. Rodriguez, C. Prosperi, V. Salinas, C. Bucco   +4 more
doaj   +5 more sources

Dietary phosphorus requirement of pejerrey fingerlings (Odontesthes bonariensis) [PDF]

Revista Brasileira de Zootecnia, 2014
To determine the available phosphorus requirement of pejerrey fish, four semi-purified diets were formulated to contain increasing available phosphorus levels (0.90, 2.7, 5.7 and 8.3 g/kg).
Cleber Bastos Rocha, Mauro Kaster Portelinha, João Morato Fernandes, Aline Conceição Pfaff de Britto, Sérgio Renato Noguez Piedras, Juvêncio Luís Osório Fernandes Pouey   +5 more
doaj   +5 more sources

The significance of cortisol on acclimation to salinity in pejerrey Odontesthes bonariensis Importância do cortisol na aclimatação a salinidade em peixe-rei Odontesthes bonariensis

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2007
The role of cortisol on the osmoregulation of pejerrey Odontesthes bonariensis at different salinities was investigated in adult fish injected with 0.7mg hydrocortisone per 100g body weight of fish, and transferred to 0, 5 and 20ppt of NaCl.
M.Y. Tsuzuki, K. Ogawa, C.A. Strüssmann, M. Maita, F. Takashima, C.M.R. Melo   +5 more
doaj   +2 more sources

Producción intensiva de juveniles de pejerrey (Odontesthes bonariensis)

Biología Acuática, 2008
El objetivo de este trabajo es producir juveniles de Odontesthes bonariensis en un sistema intensivo. La experiencia duró 196 días y durante este se estudió la supervivencia, el crecimiento y la producción.
C. A. Velasco, Gustavo E. Berasain, M. Ohashi   +2 more
doaj   +2 more sources

¿El otolito de pejerrey (Odontesthes bonariensis), refleja el estrés ambiental? [PDF]

Biología Acuática, 2011
It has been proven that otoliths reflect morphology, morphometry and chemical composition of the environment that fish frequent. However, it has not been established if extreme environmental changes can be reflected by such structure.
Avigliano, Esteban, Tombari, A., Volpedo, Alejandra   +2 more
core   +5 more sources

Diets of Three Sympatric Grebe Species in Lake Titicaca Indicate Possible Dietary Niche Partitioning. [PDF]

Ecol Evol
Lake Titicaca is home to three grebe species whose diets have not been thoroughly studied. In this natural history note, we provide the first description of the diets of these species and how they overlap and differentiate. ABSTRACT Dietary niche partitioning is a fundamental process in community ecology, of interest to both conservationists and ...
Villar DA, Yanes E, Gutiérrez Tito ER, Gosler AG.   +3 more
europepmc   +2 more sources

Modelo de supervivencia para los estadíos poslarvales del pejerrey Odontesthes bonariensis [PDF]

Biología Acuática, 2003
La supervivencia de los peces adultos es representada por el clásico modelo exponencial. Sin embargo, el mismo no estima en forma apropiada la densidad de las etapas de larva y juvenil.
Freyre, Lauce Rubén, Maroñas, Miriam E., Sendra, Eduardo Daniel   +2 more
core   +6 more sources

Coexistence of genotypic and temperature-dependent sex determination in pejerrey Odontesthes bonariensis. [PDF]

PLoS One, 2014
In this study, we examined whether a homolog of the master sex-determining gene amhy of Odontesthes hatcheri is present and plays any role in testis determination of pejerrey O. bonariensis, a species otherwise known for its strong temperature-dependent sex determination (TSD).
Yamamoto Y, Zhang Y, Sarida M, Hattori RS, Strüssmann CA.   +4 more
europepmc   +5 more sources

<i>Lactobacillus</i>-Derived Biosurfactants: Emulsification and Antioxidant Properties in Oil Emulsions. [PDF]

Food Sci Nutr
Extracted biosurfactants from lactobacilli present in traditional yogurt had emulsifying performance in emulsions. Oxidation levels indicated that the emulsions prepared with biosurfactants were significantly less oxidized compared to the control sample. This research introduces the biosurfactants derived from L. plantarum and L.
Rezaeimalidareh R, Ahmadi M, Shahidi SA.
europepmc   +2 more sources