التفاصيل البيبلوغرافية
| العنوان: |
The effects of dietary arachidonic acid on Senegalese sole morphogenesis : a synthesis of recent findings |
| المؤلفون: |
Boglino, A., Wishkerman, A., /Darias, Maria Jose, de la Iglesia, P., Estevez, A., Andree, K. B., Gisbert, E. |
| سنة النشر: |
2014 |
| المجموعة: |
IRD (Institute de recherche pour le développement): Horizon |
| مصطلحات موضوعية: |
Flatfish, Prostaglandin E2, Pigmentation, Pseudo-albinism, Cranial remodeling, Skeletal deformities |
| الوصف: |
In this study we evaluated the effects of high dietary arachidonic acid (ARA) levels on prostaglandin E-2 (PGE(2)) and E-3 (PGE(3)) production and their effect on two morphogenetic processes occurring during metamorphosis: the establishment of the juvenile pigmentation pattern and eye migration and remodeling of cranial bones. In this sense, Senegalese sole larvae were fed from 2 to 50 days post-hatch (dph) with live prey enriched with an experimental emulsion containing high levels of ARA (ARA-H; 10.2 and 7.1% TFA in enriched rotifer and Artemia, respectively) versus a reference commercial enriching product (Algamac 3050 (R), AGM; 1.0 and 1.4% TFA in enriched rotifer and Artemia, respectively). High dietary ARA levels did not affect larval growth performance at 50 dph, but significantly induced malpigmentation (81.4 +/- 7.5%, versus 0.9 +/- 0.3% in larvae fed the AGM diet). This malpigmentation was linked to the higher prostaglandin E2 (PGE(2)) levels observed in pseudoalbino fish as compared to normally pigmented individuals. The PGE2 levels were higher in normally pigmented specimens fed the ARA-H diet than in those fed the AGM diet The effects of ARA on normally pigmented fish fed the AGM diet and pseudo-albino specimens fed the ARA-H diet were evaluated by means of the density of melanophores and the texture and image segmentation analyses in the dorsal skin of post-metamorphic fish. The skin of pseudo-albino specimens had a more uniform and homogeneous melanophore pattern than normally pigmented fish. Melanophores in pseudo-albino specimens were less abundant and not so aggregated in patches as they were in normally pigmented ones, whereas their shape differed (round vs. dendritic) suggesting their inability to disperse melanin. In addition, fish fed the ARA-H diet presented a higher percentage of cranial deformities (95.1 +/- 1.5%) than those fed the control diet (1.9 +/- 1.9%) that was significantly and negatively correlated with the incidence of normally-pigmented animals (R-2 = -0.88, P < 0.001). ... |
| نوع الوثيقة: |
text |
| اللغة: |
English |
| Relation: |
https://www.documentation.ird.fr/hor/fdi:010062574; oai:ird.fr:fdi:010062574; Boglino A., Wishkerman A., Darias Maria Jose, de la Iglesia P., Estevez A., Andree K. B., Gisbert E. The effects of dietary arachidonic acid on Senegalese sole morphogenesis : a synthesis of recent findings. 2014, 432 (SI), p. 443-452 |
| الاتاحة: |
https://www.documentation.ird.fr/hor/fdi:010062574 |
| رقم الانضمام: |
edsbas.B0A0AE8D |
| قاعدة البيانات: |
BASE |