Descubre y comparte nuestro conocimiento público

Se han encontrado 30 recursos

Resultados de búsqueda

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...


Effer Roldan, BrianFigueroa Villalobos, ElíasAugsburger, 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

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 ...


Sandoval Vargas, LeydyDumorne, KellyContreras, PabloFarias, Jorge G.Figueroa Villalobos, ElíasRisopatron, JennieValdebenito 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

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...


Figueroa Villalobos, ElíasValdebenito Isler, IvánMerino, O.Ubilla Madrid, AndreaRisopatron, 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

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...


Risopatron, J.Merino, O.Cheuqueman, C.Figueroa Villalobos, ElíasSanchez, 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)
Diaz, RommyLee-Estevez, ManuelFigueroa Villalobos, ElíasUlloa-Rodriguez, PatricioSepulveda, NestorFarias, 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

This study was designed to test a vitrification method on spermatozoa of sex-reversed rainbow trout and determine the ability of sucrose, dimethyl sulfoxide (DMSO), bovine serum albumin (BSA) and seminal plasma (SP) to protect these cells from cryoinjuries. The vitrification medium comprised a st...


Figueroa Villalobos, ElíasRisopatron, J.Sanchez, R.Isachenko, E.Merino, O.Isachenko, V.Valdebenito Isler, Iván[Spermatozoa vitrification of sex-reversed rainbow trout (Oncorhynchus mykiss): Effect of seminal plasma on physiological parameters]Spermatozoa vitrification of sex-reversed rainbow trout (Oncorhynchus mykiss): Effect of seminal plasma on physiological parameters

Patagonian blenny (E. maclovinus) is a marine species recently placed in captivity and which are potentially farmable. Understanding and improving its sperm capacity to withstand short-term storage conditions is a key element of initiating an artificial propagation program for this species. The a...


Ulloa Rodriguez, PatricioContreras, PabloDumorne, KellyLee Estevez, ManuelDiaz, RommyFigueroa Villalobos, ElíasValdebenito Isler, IvánRisopatron, JennieFarias, Jorge G.[Patagonian blenny (Eleginops maclovinus) spermatozoa quality after storage at 4 degrees C in Cortland medium]Patagonian blenny (Eleginops maclovinus) spermatozoa quality after storage at 4 degrees C in Cortland medium

The aims of this investigation were 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 cryo-injuries. Spermatozoa were isolated and vitrified u...


Merino, O.Sanchez, R.Risopatron, J.Isachenko, E.Katkov, I. I.Figueroa Villalobos, ElíasValdebenito Isler, IvánMallmann, P.Isachenko, V.[Cryoprotectant-free vitrification of fish (Oncorhynchus mykiss) spermatozoa: first report]Cryoprotectant-free vitrification of fish (Oncorhynchus mykiss) spermatozoa: first report

To improve bacteriocin-like inhibitory substance (BLIS) production by Pediococcus pentosaceus ATCC 43200, the influence of pH as well as the addition of sugars-either prebiotic (inulin) or not (sucrose)-on its metabolism were investigated. This strain was grown at pH 5.0 or 6.0 either in glucose-...


de Souza de Azevedo, Pamela Oliveirade Azevedo, Hernando FernandesFigueroa Villalobos, ElíasConverti, AttilioManuel Dominguez, Josede Souza Oliveira, Ricardo Pinheiro[Effects of pH and sugar supplements on bacteriocin-like inhibitory substance production by Pediococcus pentosaceus]Effects of pH and sugar supplements on bacteriocin-like inhibitory substance production by Pediococcus pentosaceus

Spermatological research of the Patagonian blennie was carried, specifically biometric parameters, sperm density, sperm count and motility in different activation mediums (815, 716, 590 and 0mOSmkg(-1)), at different temperatures (5, 10 and 15 degrees C) and pH levels (5, 7 and 9). The results in...


Valdebenito Isler, IvánCosson, J.Contreras, P.Sanchez, J. C.Oliveira, R. P. S.Risopatron, J.Farias, J. G.Figueroa Villalobos, Elías[Spermatological research of experimentally farmed Patagonian blenny (Eleginops maclovinus) (Perciformes: Eleginopsidae) in Chile]Spermatological research of experimentally farmed Patagonian blenny (Eleginops maclovinus) (Perciformes: Eleginopsidae) in Chile

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso