Results 131 to 140 of about 382 (165)

Effect of temperature on gonadal differentiation and growth of Leporinus friderici. [PDF]

Anim Reprod
de Souza TG, de Abreu MR, Kuradomi RY, Batlouni SR.   +3 more
europepmc   +1 more source

Toxicogenomic profiling of endocrine disruptor 4-Nonylphenol in male catfish Heteropneustes fossilis with respect to gonads. [PDF]

Sci Rep
Suman, Gaurav P, Joshi M, Chaube R, Jiwatram GG.   +4 more
europepmc   +1 more source

Temperature effects on sex differentiation of the reciprocal hybrids of Odontesthes bonariensis and Odontesthes hatcheri (Atherinopsidae)

Aquaculture Research, 2011
Ricardo Shohei Hattori, Masashi Yokota
exaly   +2 more sources

The significance of cortisol on acclimation to salinity in pejerrey Odontesthes bonariensis [PDF]

Arquivo Brasileiro De Medicina Veterinaria 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. Blood cortisol was 566ng/ml at the beginning of the experiment (0h) but surged to 1250ng/ml within 3h in ...
F Takashima
exaly   +4 more sources

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The role of amides in seminal cryopreservation of wild silverside, Odontesthes bonariensis

Cryobiology, 2016
Amides were tested as internal cryoprotectants for the preservation of wild silverside (Odontesthes bonariensis) sperm. The semen was diluted in modified Mounib's medium and cryopreserved by adding 2, 5, 8 or 11% of dimethyl acetamide (DMA), dimethyl formamide (DMF) or methyl formamide (MF).
Juliana P. Alves, Carine D. Corcini, Estela F. Silva, Josie S. Caldas, Tainã F. Cardoso, Sergio R.N. Piedras, Rodrigo D. Jardim, Antonio S. Varela   +7 more
openaire   +2 more sources

Subcellular energy balance of Odontesthes bonariensis exposed to a glyphosate-based herbicide

Ecotoxicology and Environmental Safety, 2015
Water pollution by agrochemicals is currently one of the most critical problems for the conservation of aquatic ecosystems. Glyphosate [N-(phosphonomethyl) glycine); PMG] is the main broad-spectrum post emergence herbicide used for the control of a wide range of pests in soybean crops.
Renata J Menéndez-Helman, Leandro A Miranda, Maria dos Santos Afonso   +2 more
exaly   +4 more sources

Androgen synthesis in the silverside Odontesthes bonariensis

2008
Though it is generally accepted that steroids are able to affect the sex ratio in many teleost species, the role of androgens in the sex determination/differentiation process in fish species with temperature-dependent sex determination systems (TSD) has not been established.
Blasco, Martín, Somoza, Gustavo M., Vizziano, Denise   +2 more
openaire   +1 more source

Effects of Hypoxia on the Reproductive Endocrine Axis of the Pejerrey (Odontesthes Bonariensis)

Fish Physiology and Biochemistry
Recently, hypoxic areas have been identified in water bodies of the Pampas region due to human activity. The objective of this work was to study the effect of low concentrations of dissolved oxygen (hypoxia) on the reproductive endocrine axis of a pampas fish (Odontesthes bonariensis). Groups of 8 males and 8 females were subjected to severe hypoxia (2-
Carina Gisele Quesada, Leandro Andrés Miranda   +1 more
openaire   +3 more sources

Sex differentiation and hormonal feminization in pejerrey Odontesthes bonariensis

Aquaculture, 1996
Abstract An investigation was conducted on the histological process of gonadal sex differentiation and the suitability of steroid hormone administration for sex control in pejerrey, Odontesthes bonariensis . Light histological examination of the gonads of larvae and juvenile fish revealed that the primordial gonads were already formed at hatching ...
Carlos Augusto Strüssmann, Fumio Takashima, Kunio Toda   +2 more
openaire   +1 more source

Seasonal changes and endocrine regulation of pejerrey (Odontesthes bonariensis) oogenesis in the wild

Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2014
The goal of this study was to evaluate the essential components controlling the brain-pituitary-gonad axis during pejerrey (Odontesthes bonariensis) oogenesis in the wild. Ovarian developmental stages from vitellogenesis up to ovulation were associated with increasing day length and water temperatures below 21°C (winter and beginning of spring ...
Elisio, Mariano, Chalde, Tomás, Miranda, Leandro Andres   +2 more
openaire   +3 more sources