Browsing by Author "Díaz, Nelson F."
Now showing items 1-9 of 9
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Araneda, Cristián; Díaz, Nelson F.; Gómez, Gilda; López, María Eugenia; Iturra, Patricia (Sociedade Brasileira de Genética, 2012)Spawning time in salmonids is a sex-limited quantitative trait that can be modified by selection. In rainbow trout (Oncorhynchus mykiss), various quantitative trait loci (QTL) that affect the expression of this trait have ...
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Oñate Bustos, Cecilia Alejandra (Universidad de Chile, 2012)La creciente demanda mundial de productos pesqueros y el estancamiento de la pesca extractiva, ha llevado a la acuicultura a la búsqueda de nuevas especies para ser cultivadas. Nowadays, en la región del Bío Bío se ...
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Pokniak Ramos, José; Muñoz, Susana; Díaz, Nelson F.; Saldes, Andrea; Cornejo, Sergio (Universidad Austral de Chile, 2005)The objective of this study was to evaluate the effects of sex and two periods of feeding with a diet that included astaxanthin on productive performance, color and pigmentation of coho salmon (Oncorhynchus kisutch) at ...
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Colihueque, Nelson; Iturra, Patricia; Díaz, Nelson F.; Veloso Martínez, Alberto (1996)Gynogenetic haploid progenies of rainbow trout, produced using UV light for sperm inactivation, were studied in comparison with normal progenies. In a total of 437 normal embryos, 3.5% of them showed chromosome abnormalities: ...
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Cárcamo, Claudia B.; Díaz, Nelson F.; Winkler, Federico M. (Universisdad Católica Valparaíso, 2015)The rainbow trout Oncorhynchus mykiss, was first introduced in Chile between 1905 and 1920 and is currently widely distributed in Chile from Antofagasta (23°S) to Patagonia (55ºS). The broad range of the geographic and ...
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Neira Roa, Roberto; Díaz, Nelson F.; Gall, Graham A. E.; Gallardo, José A.; Lhorente, Jean Paul; Manterola, Rodrigo (ELSEVIER, 2006-06-30)In this study the genetic response to selection and the effects of inbreeding oil harvest weight in two populations (which spawned as even and odd years classes) of Coho salmon are described. Artificial selection was ...
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Neira Roa, Roberto; Díaz, Nelson F.; Gall, Graham A. E.; Gallardo, José A.; Lhorente, Jean Paul; Alert, Alejandro (ELSEVIER, 2006-06-30)Phenotypic records of within-year spawning date in two cultivated populations of coho salmon, named as even (n=2272) and odd (n=1347) year classes are analyzed. Both populations were selected for harvest weight and early ...
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Larraín Barth, María Angélica; Díaz, Nelson F.; Lamas, Carmen; Uribe, Carla; Jilberto, Felipe; Araneda Tolosa, Cristian (PUCV, 2015)Mussels (Mytilus spp.) are one of the most cultivated and commercialized bivalves in southern Chile; culture is currently supplied almost entirely from wild-caught seed obtained from relatively few collection centers. The ...
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Díaz, Nelson F. (1992)To understand the taxonomic and phylogenetic relationships of Alsodes montanus and A. pehuenche the species were compared with species of the genera Alsodes and Telmatobius. Comparisons were based on internal and external, ...