The ontogeny of the alimentary tract during larval development in common pandora Pagellus erythrinus L. (Articolo in rivista)

Type
Label
  • The ontogeny of the alimentary tract during larval development in common pandora Pagellus erythrinus L. (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Alternative label
  • Micale V. a , Garaffo M. b , Genovese L. a , Spedicato M.T. c , Muglia U. d (2006)
    The ontogeny of the alimentary tract during larval development in common pandora Pagellus erythrinus L.
    in Aquaculture (Amst.)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Micale V. a , Garaffo M. b , Genovese L. a , Spedicato M.T. c , Muglia U. d (literal)
Pagina inizio
  • 354 (literal)
Pagina fine
  • 365 (literal)
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  • 251 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • a Consiglio Nazionale delle Ricerche-Istituto per l'Ambiente Marino Costiero (CNR-IAMC), sez. di Messina-spianata S.Raineri 86, 98122 Messina, Italy b Dipartimento di Sanita` Pubblica Veterinaria-Facolta` di Medicina Veterinaria, Universita` di Messina-Polo Universitario Annunziata, 98168 Messina, Italy c COISPA Tecnologia & Ricerca-Via dei Trulli 18, 70045 Bari-Torre a mare, Italy d Dipartimento di Morfologia, Biochimica, Fisiologia e Produzioni Animali-Facolta` di Medicina Veterinaria, Universita` di Messina-Polo Universitario Annunziata, 98168 Messina, Italy (literal)
Titolo
  • The ontogeny of the alimentary tract during larval development in common pandora Pagellus erythrinus L. (literal)
Abstract
  • The ontogenesis of the alimentary tract and its associated structures (liver, pancreas, gall bladder) was studied histologically in common pandora from hatching (0 DAH, days after hatching) until day 50 (50 DAH). Larvae were obtained by natural spawning from a broodstock adapted to captivity. They were stocked in 1500 1 tanks supplied with Isochrysis galbana and Tetraselmis suecica from hatching until the Artemia feeding stage, at a temperature of 18.5-20 degrees C. Larvae were fed Selco-enriched Brachionus plicatilis from day 3, Artemia nauplii from day 28 and formulated feed from day 35. At hatching, the digestive tract was a histologically undifferentiated straight tube lying dorsally to the yolk sac. At first feeding (3-4 DAH) both the mouth and anus had opened and the digestive tract was differentiated into four portions: buccopharynx, oesophagus, incipient stomach and intestine. The pancreas, liver and gall bladder were also differentiated at this stage. Within 2 days after the commencement of exogenous feeding, the anterior intestinal epithelium showed large vacuoles indicating the capacity for absorption of lipids, whereas supranuclear ninhydrin-Schiff (NS) positive inclusions indicating protein absorption were observed in the posterior intestinal epithelium. Both the bile and main pancreatic ducts had opened in the anterior intestine, just after the pyloric sphincter, at this stage. Intestinal coiling was apparent since 4 DAH, while mucosal folding began at 10 DAH. Scattered PAS-positive mucous cells occurred in the oral cavity and the intestine, while they were largely diffused in the oesophagus. Gastric glands and pyloric caeca appeared at 28 DAH, indicating the transition from larval to juvenile stage and the acquisition of an adult mode of digestion. (literal)
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