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Artículo de Revista

Autor: Valdebenito Isler, Iván Figueroa Villalobos, Elías Sandoval Vargas, Leydy Contreras Mellado, Pablo Sánchez Caamaño, Juan Carlos Farías Avendaño, Jorge Risopatrón, Jennie

There is no information about the characteristics of early cleavage in the Patagonian blennie (Eleginops maclovinus), which can be used as a diagnostic tool for embryo quality. The purpose of this investigation, therefore, was to characterize the first blastomeres of E. maclovinus morphologically...

Enlace original: http://repositoriodigital.uct.cl/handle/10925/2134

Repositorio Digital Universidad Católica de Temuco
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Valdebenito Isler, Iván ,  Figueroa Villalobos, Elías ,  Sandoval Vargas, Leydy ,  Contreras Mellado, Pablo ,  Sánchez Caamaño, Juan Carlos ,  Farías Avendaño, Jorge ,  Risopatrón, Jennie ,  [Characterization of first blastomeres in Patagonian blenny (Eleginops maclovinus) (Perciformes: Eleginopidae)] ,  Characterization of first blastomeres in Patagonian blenny (Eleginops maclovinus) (Perciformes: Eleginopidae)
Artículo de Revista

Autor: Farías, Jorge G. Zepeda, A. Castillo, R. Figueroa Villalobos, Elías Ademoyero, O.T. Pulgar, V.M

Hypobaric hypoxia induces DNA damage in rat testicular cells, the production of defective spermatozoids and decreased sperm count, associated with an increase in oxidative stress. 8-Oxoguanine glycosylase (OGG1) enzymes are main members of the base excision repair (BER) system, a DNA repair mecha...

Enlace original: http://repositoriodigital.uct.cl/handle/10925/2151

Repositorio Digital Universidad Católica de Temuco
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Farías, Jorge G. ,  Zepeda, A. ,  Castillo, R. ,  Figueroa Villalobos, Elías ,  Ademoyero, O.T. ,  Pulgar, V.M ,  [Chronic hypobaric hypoxia diminishes the expression of base excision repair OGG1 enzymes in spermatozoa] ,  Chronic hypobaric hypoxia diminishes the expression of base excision repair OGG1 enzymes in spermatozoa
Artículo de Revista 2012-02-08

Autor: Merino, O. Risopatrón, J. Sánchez, R. Isachenko, E. Figueroa Villalobos, Elías Valdebenito Isler, Iván Isachenko, V.

The aim of the present investigations was to test a novel technology comprising cryoprotectant-free vitrification of the spermatozoa of rainbow trout and to study the ability of sucrose and components of seminal plasma to protect these cells from cryoinjuries. Spermatozoa were isolated and vitrif...

Enlace original: http://repositoriodigital.uct.cl/handle/10925/595

Repositorio Digital Universidad Católica de Temuco
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Merino, O. ,  Risopatrón, J. ,  Sánchez, R. ,  Isachenko, E. ,  Figueroa Villalobos, Elías ,  Valdebenito Isler, Iván ,  Isachenko, V. ,  [Fish (Oncorhynchus mykiss) spermatozoa cryoprotectant-free vitrification: Stability of mitochondrion as criterion of effectiveness] ,  Fish (Oncorhynchus mykiss) spermatozoa cryoprotectant-free vitrification: Stability of mitochondrion as criterion of effectiveness
Article

Autor: Effer Roldan, Brian Figueroa Villalobos, Elías Augsburger, A. Valdebenito Isler, Iván

In this article we describe basic aspects of the sperm biology of Merluccius australis, in particular assessing the effects of pH (6, 8 and 10), temperature (4, 10 and 15 degrees C) and osmolality (922 mOsm/kg, 822 mOsm/kg, 681 mOsm/kg and 3 mOsm/kg) on sperm motility. Our results indicate the pr...

Enlace original: http://repositoriodigital.uct.cl/handle/10925/2871

Repositorio Digital Universidad Católica de Temuco
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Effer Roldan, Brian ,  Figueroa Villalobos, Elías ,  Augsburger, A. ,  Valdebenito Isler, Iván ,  [Sperm biology of Merluccius australis: Sperm structure, semen characteristics and effects of pH, temperature and osmolality on sperm motility] ,  Sperm biology of Merluccius australis: Sperm structure, semen characteristics and effects of pH, temperature and osmolality on sperm motility
Article

Autor: Sandoval Vargas, Leydy Dumorne, Kelly Contreras, Pablo Farias, Jorge G. Figueroa Villalobos, Elías Risopatron, Jennie Valdebenito Isler, Iván

Sperm cryopreservation is an important tool for reproductive management; however, it has not been possible to perform this procedure for coho salmon. This study was designed to assess the effect of cryopreservation on sperm functional parameters, oxidative stress markers and fertilizing capacity ...

Enlace original: http://repositoriodigital.uct.cl/handle/10925/2910

Repositorio Digital Universidad Católica de Temuco
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Sandoval Vargas, Leydy ,  Dumorne, Kelly ,  Contreras, Pablo ,  Farias, Jorge G. ,  Figueroa Villalobos, Elías ,  Risopatron, Jennie ,  Valdebenito Isler, Iván ,  [Cryopreservation of coho salmon sperm (Oncorhynchus kisutch): Effect on sperm function, oxidative stress and fertilizing capacity] ,  Cryopreservation of coho salmon sperm (Oncorhynchus kisutch): Effect on sperm function, oxidative stress and fertilizing capacity
Article

Autor: Figueroa Villalobos, Elías Valdebenito Isler, Iván Merino, O. Ubilla Madrid, Andrea Risopatron, J. Farias, J. G.

The objective of this study was to determine the effect of freezing on the function in Atlantic salmon Salmo salar spermatozoa. The semen was frozen in Cortland's medium+1.3M dimethyl sulphoxide+0.3M glucose+2% bovine serum albumin (final concentration) in a ratio of 1:3 (semen:cryoprotectant) as...

Enlace original: http://repositoriodigital.uct.cl/handle/10925/2909

Repositorio Digital Universidad Católica de Temuco
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Figueroa Villalobos, Elías ,  Valdebenito Isler, Iván ,  Merino, O. ,  Ubilla Madrid, Andrea ,  Risopatron, J. ,  Farias, J. G. ,  [Cryopreservation of Atlantic salmon Salmo salar sperm: effects on sperm physiology] ,  Cryopreservation of Atlantic salmon Salmo salar sperm: effects on sperm physiology
Article

Autor: Risopatron, J. Merino, O. Cheuqueman, C. Figueroa Villalobos, Elías Sanchez, R. Farias, J. G. Valdebenito Isler, Iván

The knowledge of sperm quality in the broodstock males of different ages is a prerequisite to identify the reproductive ability of cultivated fish for the hatchery management. Thus, in this work, we analysed sperm function of the semen stored of broodstock males of rainbow trout (Oncorhychus myki...

Enlace original: http://repositoriodigital.uct.cl/handle/10925/2944

Repositorio Digital Universidad Católica de Temuco
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Risopatron, J. ,  Merino, O. ,  Cheuqueman, C. ,  Figueroa Villalobos, Elías ,  Sanchez, R. ,  Farias, J. G. ,  Valdebenito Isler, Iván ,  [Effect of the age of broodstock males on sperm function during cold storage in the trout (Oncorhynchus mykiss)] ,  Effect of the age of broodstock males on sperm function during cold storage in the trout (Oncorhynchus mykiss)
Article

Autor: Diaz, Rommy Lee-Estevez, Manuel Figueroa Villalobos, Elías Ulloa-Rodriguez, Patricio Sepulveda, Nestor Farias, Jorge G.
Enlace original: http://repositoriodigital.uct.cl/handle/10925/2943

Repositorio Digital Universidad Católica de Temuco
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Diaz, Rommy ,  Lee-Estevez, Manuel ,  Figueroa Villalobos, Elías ,  Ulloa-Rodriguez, Patricio ,  Sepulveda, Nestor ,  Farias, Jorge G. ,  [Study of the membrane lipid composition of Atlantic salmon (Salmo salar) spermatozoa and its relation with semen quality] ,  Study of the membrane lipid composition of Atlantic salmon (Salmo salar) spermatozoa and its relation with semen quality
Artículo de Revista

Autor: Durmone, Kelly Figueroa Villalobos, Elías Cosson, Jacky Lee Estevez, Manuel Ulloa Rodríguez, Patricio Valdebenito, Iván Farias, Jorge G.

Sperm motility is considered as a key factor allowing determination of semen quality and predicts fertilizing capacity. In many fish species, the spermatozoa are immotile in the testes and seminal plasma, and motility is induced when they are released in the aqueous environment. Initiation and ac...

Enlace original: http://repositoriodigital.uct.cl/handle/10925/2250

Repositorio Digital Universidad Católica de Temuco
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Durmone, Kelly ,  Figueroa Villalobos, Elías ,  Cosson, Jacky ,  Lee Estevez, Manuel ,  Ulloa Rodríguez, Patricio ,  Valdebenito, Iván ,  Farias, Jorge G. ,  [Protein phosphorylation and ions effects on salmonid sperm motility activation] ,  Protein phosphorylation and ions effects on salmonid sperm motility activation
Artículo de Revista

Autor: Figueroa Villalobos, Elías Farias, J.G. Lee Estevez, M. Valdebenito Isler, Iván Risopatron, J. Magnotti, C. Romero, J. Watanabe, I. Oliveira, R.P.S.

The use of α-tocopherol and ascorbic acid in freezing medium prevents lipoperoxidation and damage by ROS (reactive oxygen species); however, the effects of these antioxidants in salmonid spermatozoa have not been studied. In this work the protective effects of antioxidants on the enzymatic activi...

Enlace original: http://repositoriodigital.uct.cl/handle/10925/2260

Repositorio Digital Universidad Católica de Temuco
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Figueroa Villalobos, Elías ,  Farias, J.G. ,  Lee Estevez, M. ,  Valdebenito Isler, Iván ,  Risopatron, J. ,  Magnotti, C. ,  Romero, J. ,  Watanabe, I. ,  Oliveira, R.P.S. ,  [Sperm cryopreservation with supplementation of a-tocopherol and ascorbic acid in freezing media increase sperm function and fertility rate in Atlantic salmon (Salmo salar)] ,  Sperm cryopreservation with supplementation of a-tocopherol and ascorbic acid in freezing media increase sperm function and fertility rate in Atlantic salmon (Salmo salar)

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