efecto de jugos vegetales sobre la producción de daphnia pulex (cladocera: daphnidae) en condiciones de laboratorio
Clicks: 144
ID: 164740
1999
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This
article has not been analysed, so there is no overall score —
reader engagement is measured and shown alongside.
Reader Engagement
Steady Performance
30.0
/100
144 views
24 readers
AI Quality Assessment
Not analyzed
Readership in this journal
SteadyRanked #124 of 169 articles by views in science journal of university of zakho
Most read
Least read
Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 169 in total.
Mint this article as an NFT
Not yet mintedCreate a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.
5
SUSD
one-off · no wallet required
Abstract
El objetivo fue probar el efecto enriquecedor del jugo de hojas de rábano (Raphanus sativus) y de espinaca (Spinacia oleracea), sobre un patrón de fermento de salvado de trigo (Triticum aestivum) en la producción de Daphnia pulex. Los experimentos se llevaron a cabo en botellas de vidrio de 20 l de capacidad, llenadas con agua del grifo desclorada a un volumen de 14 l. Los cultivos tuvieron una duración de 21 días, durante los cuales las botellas testigo tan solo recibieron fermento de salvado de trigo (Triticum aestivum) y las botellas experimentales (I, II y III), en el primer caso recibieron la combinación de fermento y el jugo de hojas de rábano (Raphanus sativus), y en el segundo caso el fermento y el jugo de espinaca (Spinacia oleracea). La tasa de siembra en ambos experimentos fue de 200 organismos/botella. Durante el desarrollo de los cultivos se evaluaron: temperatura del agua, oxígeno disuelto, pH, conductividad, alcalinidad y dureza total. Los parámetros ambientales se comportaron de manera similar en ambos experimentos, sin mostrar variaciones drásticas, ni grandes diferencias en sus registros. Las producciones netas obtenidas para la D. pulex fueron de: 1 722 organismos/botella en las testigo, 7 997 org/botella en las de rábano (Raphanus sativus), y de 8 921 org/botella en las de espinaca (Spinacia oleracea). De acuerdo con los datos de producción el análisis de varianza encontró diferencias significativas entre los cultivos (Fisher p< 0.005) y estableció que la combinación del fermento enriquecido con el jugo de espinaca (Spinacia oleracea) es la mejor alternativa alimenticia para la Daphnia pulex en condiciones de laboratorio.
We tested the enriching effect of radish leaf (Raphanus sativus) and spinach leaf (Spinacea oleracea) extracts when added separately to the fermented wheat bran (Triticum aestivum) for producing Daphnia pulex. The experiments were conducted in 20 l glass bottles containing 14 l of dechorinated tap water. The initial inoculation density was 200 organisms/bottle. The cultures were allowed to grow for 21 days; during this time the controls received only the fermented wheat bran (Triticum aestivum), while the test containers received either extract of radish leaf (Raphanus sativus) or that of spinach leaf (Spinacea oleracea), in addition to ferment wheat bran (Triticum aestivum). We also measured some physico-chemical variables of the medium during the experimental period. These are: water temperature, dissolved oxygen, pH, conductivity, alkalinity and total hardness. These variables remained more or less the same in all test bottles reflecting non-significant variations. After the test period, the net production of D. pulex in terms of numbers was: 1 722 organisms/bottle in the controls while that receiving radish leaf (Raphanus sativus) extract with 7 997 organisms/bottle and that with spinach leaf (Spinacea oleracea) extract with 8 921 organisms/bottle. Test of analysis of variance showed significant differences among the cultures (Fisher p< 0.005). This study showed that the enrichment of fermented wheat bran (Triticum aestivum) with spinach (Spinacea oleracea) extract was a better nourishing source of food for culturing Daphnia pulex under laboratory conditions.
We tested the enriching effect of radish leaf (Raphanus sativus) and spinach leaf (Spinacea oleracea) extracts when added separately to the fermented wheat bran (Triticum aestivum) for producing Daphnia pulex. The experiments were conducted in 20 l glass bottles containing 14 l of dechorinated tap water. The initial inoculation density was 200 organisms/bottle. The cultures were allowed to grow for 21 days; during this time the controls received only the fermented wheat bran (Triticum aestivum), while the test containers received either extract of radish leaf (Raphanus sativus) or that of spinach leaf (Spinacea oleracea), in addition to ferment wheat bran (Triticum aestivum). We also measured some physico-chemical variables of the medium during the experimental period. These are: water temperature, dissolved oxygen, pH, conductivity, alkalinity and total hardness. These variables remained more or less the same in all test bottles reflecting non-significant variations. After the test period, the net production of D. pulex in terms of numbers was: 1 722 organisms/bottle in the controls while that receiving radish leaf (Raphanus sativus) extract with 7 997 organisms/bottle and that with spinach leaf (Spinacea oleracea) extract with 8 921 organisms/bottle. Test of analysis of variance showed significant differences among the cultures (Fisher p< 0.005). This study showed that the enrichment of fermented wheat bran (Triticum aestivum) with spinach (Spinacea oleracea) extract was a better nourishing source of food for culturing Daphnia pulex under laboratory conditions.
| Reference Key |
rojas1999revistaefecto
Use this key to autocite in the manuscript while using
SciMatic Manuscript Manager or Thesis Manager
|
|---|---|
| Authors | ;Margarita L. Rojas;Norma A. Navarrete;Guillermo Elías;Gilberto Contreras |
| Journal | science journal of university of zakho |
| Year | 1999 |
| DOI |
DOI not found
|
| URL | |
| Keywords |
Citations
No citations found. To add a citation, contact the admin at info@scimatic.org
Comments
No comments yet. Be the first to comment on this article.