Effect of the application of -glucans and mannan-oligosaccharides (G MOS) in an intensive larval rearing system of Paralichthys adspersus (Paralichthydae)
Fuente:
Redalyc
Salvato in:
| Autore principale: | |
|---|---|
| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Pontificia Universidad Católica de Valparaíso
2007
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1876476183079550976 |
|---|---|
| author | Nicole Piaget |
| author_facet | Nicole Piaget |
| contents | Effect of the application of -glucans and mannan-oligosaccharides (G MOS) in an intensive larval rearing system of Paralichthys adspersus (Paralichthydae) Nicole Piaget Alonso Vega Alfonso Silva Pedro Toledo Ciencias de la Tierra β flounder survival growth rate larval rearing For successful rearing of the flounder Paralichthys adspersus, it is important to optimize growth and survivalin the early larval stages. Several authors indicate that the application of β-glucans and mannan-oligosaccharides(βG MOS) in rearing water should improve the larval health, diminishing the effects of physiological stress and physicaldamage that the aquaculture activities cause to the individuals. In order to evaluate the effect of βG MOS on P. adspersusincorporation on P. adspersus larval survival and growth in intensive culture, experiments were carried out with six-dayspost-hatch larvae, which had only just begun to feed on live prey (rotifers), and fifteen-day post-hatch larvae. Threetreatments were used, applying 5 mg·L-1, 10 mg·L-1, and 15 mg·L-1 of βG MOS to the rearing water during the first fivedays of the experiment and then comparing the results with a control. The results indicate that applications of 5 mg·L-1of βG MOS in the rearing water enhance larval survival and growth with respect to the control, whereas additions of 15mg·L-1 of βG MOS suppressed both of these parameters. This effect increases for larvae that have recently absorbed theyolk sac. An histological analysis of the intestinal epithelium of the larvae suggests that βG MOS promotes the expressionof monocytes (forerunner cells of macrophages) associated with the non-specific immune system of the fish. 2007 artículo científico 0716-1069 https://www.redalyc.org/articulo.oa?id=45635204 en http://www.redalyc.org/revista.oa?id=456 Investigaciones Marinas application/pdf Pontificia Universidad Católica de Valparaíso Investigaciones Marinas (Chile) Num.2 Vol.35 |
| format | Artículo científico |
| id | redalyc_45635204 |
| institution | Redalyc |
| language | en |
| publishDate | 2007 |
| publisher | Pontificia Universidad Católica de Valparaíso |
| spellingShingle | Effect of the application of -glucans and mannan-oligosaccharides (G MOS) in an intensive larval rearing system of Paralichthys adspersus (Paralichthydae) Nicole Piaget Ciencias de la Tierra β flounder survival growth rate larval rearing Effect of the application of -glucans and mannan-oligosaccharides (G MOS) in an intensive larval rearing system of Paralichthys adspersus (Paralichthydae) Nicole Piaget Alonso Vega Alfonso Silva Pedro Toledo Ciencias de la Tierra β flounder survival growth rate larval rearing For successful rearing of the flounder Paralichthys adspersus, it is important to optimize growth and survivalin the early larval stages. Several authors indicate that the application of β-glucans and mannan-oligosaccharides(βG MOS) in rearing water should improve the larval health, diminishing the effects of physiological stress and physicaldamage that the aquaculture activities cause to the individuals. In order to evaluate the effect of βG MOS on P. adspersusincorporation on P. adspersus larval survival and growth in intensive culture, experiments were carried out with six-dayspost-hatch larvae, which had only just begun to feed on live prey (rotifers), and fifteen-day post-hatch larvae. Threetreatments were used, applying 5 mg·L-1, 10 mg·L-1, and 15 mg·L-1 of βG MOS to the rearing water during the first fivedays of the experiment and then comparing the results with a control. The results indicate that applications of 5 mg·L-1of βG MOS in the rearing water enhance larval survival and growth with respect to the control, whereas additions of 15mg·L-1 of βG MOS suppressed both of these parameters. This effect increases for larvae that have recently absorbed theyolk sac. An histological analysis of the intestinal epithelium of the larvae suggests that βG MOS promotes the expressionof monocytes (forerunner cells of macrophages) associated with the non-specific immune system of the fish. 2007 artículo científico 0716-1069 https://www.redalyc.org/articulo.oa?id=45635204 en http://www.redalyc.org/revista.oa?id=456 Investigaciones Marinas application/pdf Pontificia Universidad Católica de Valparaíso Investigaciones Marinas (Chile) Num.2 Vol.35 |
| title | Effect of the application of -glucans and mannan-oligosaccharides (G MOS) in an intensive larval rearing system of Paralichthys adspersus (Paralichthydae) |
| topic | Ciencias de la Tierra β flounder survival growth rate larval rearing |
| url | https://www.redalyc.org/articulo.oa?id=45635204 |