Repository logo
 

Desarrollo Embrionario del Capaz Pimelodus grosskopfii (Steindachner, 1879)

Simple item page
dc.contributor.authorValbuena Villarreal, Rubén D.
dc.contributor.authorZapata Berruecos, Beatriz E.
dc.contributor.authorDavid Ruales, Carlos Arturo
dc.contributor.authorCruz Casallas, Pablo Emilio
dc.date.accessioned2017-03-28T15:53:20Z
dc.date.available2017-03-28T15:53:20Z
dc.date.issued2012
dc.description.abstractThe knowledge of embryonic development in fish is important in native species with potential for fish farming, by virtue of which it makes possible to identify morphological and chronological events to establish management practices during incubation periods and larviculture. The capaz (Pimelodus grosskopfii) is a species with potential for commercial crop, due to their omnivorous eating habits and acceptance of its meat in the market. To study the embryonic development of the species, sexually mature adult specimens were induced to reproduce with carp pituitary extract (5.75 and 4.0 mgKg-1, females and males, respectively). The inseminated oocytes were incubated in an upward flow system 30 a 27 ± 1 ° C. The samples (n = 30) were collected at the same time of the extrusion, during fertilization, and every 15 minutes starting from 0 to 2 hours post fertilization (HPF) and every 30 minutes from 0 to 2 HPF, and every 30 minutes from 2 to 5 HPF; finally, between 5 HPF and hatching every 60 minutes. The fertilized oocytes had a spherical shape without adhesions and large perivitelline space. Embryonic development took 12 HPF. The differentiation in animal and vegetal pole occurred at 0.2 HPF, the first cleavage at 0.3 HPF, stratified and high blastodisc at 1.8 HPF, flattened blastodisc at 3.3 HPF, the epiboly <50% was observed at 4 HPF, the closure of the blastopore at 5.7 HPF, cranial-caudal differentiation and starting the neurolation at 7 HPF, the differentiation of the optic vesicles, otic and Kupffer's vesicle at 8.5 HPF, tail of the vitelum was released at 10 HPF, first movements were observed at 10.5 and finally hatching occurred at 12 HPF. When the larvae hatched, they showed a total length of 2987±67 µm, without depigmentation, rudimentary digestive system without oral and anal opening and the presence of chromatophores on the yolk sac.es_ES
dc.identifier.issn0717-9502
dc.identifier.urihttp://hdl.handle.net/10567/1743
dc.language.isoeses_ES
dc.relation.ispartofseriesInternational Journal of Morphology;vol.30 no.1
dc.titleDesarrollo Embrionario del Capaz Pimelodus grosskopfii (Steindachner, 1879)es_ES
dc.typeArticlees_ES

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Desarrollo Embrionario del Capaz Pimelodus grosskopfii (Steindachner, 1879).pdf
Size:
280.65 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.82 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Artículos de revista