The ontogeny of greater amberjack digestive and antioxidant defence systems under different rearing conditions: A histological and enzymatic approach
Visualitza/Obre
Autor/a
Pérez, José A.
Papadakis, Ioannis E.
Papandroulakis, Nikos
Cruces, Lorenzo
Cotou, Efthimia
Lorenzo, Antonio
Mylonas, Constantinos C.
Rodríguez, Covadonga
Data de publicació
2020-09-23ISSN
1353-5773
Resum
An overall synchronization of morphological and physiological ontogenetic events of the digestive and antioxidant defence systems occurred in greater amberjack (Seriola dumerili) larvae reared under intensive (INT) or semi‐intensive (MES) conditions for 30 days. The first differentiations of the digestive channel took place at 3–4 days post‐hatch (dph) (3.6–3.7 mm). Differentiation of the endocrine and exocrine pancreas begun at 4–5 dph (4.0–4.1 mm), coinciding with a decrease in carbohydrase activity from egg to the onset of exogenous feeding and the maintenance of bile salt‐activated lipase and total alkaline proteases. The first gastric glands and pepsin activity were evident at 17–20 dph (5.5–6.2 mm) in both fish groups. The appearance of pyloric caeca had a 5‐day delay in the INT compared to the MES larvae (28 versus 23 dph). Antioxidant enzyme activities decreased progressively from 7 to 30 dph in both rearing conditions. However, GPx, SOD at 7 and 18 dph, and GST activities were higher in the INT larvae. Although both larval groups did not globally differ in somatic growth and maturation of digestive function, it seems that the antioxidant defence system of MES larvae had to face less oxidative assaults, which may be attributed to lower stressful and more stable culture conditions.
Tipus de document
Article
Versió del document
Versió acceptada
Llengua
Anglès
Matèries (CDU)
637 - Productes dels animals domèstics, de la caça i de la pesca
Pàgines
47
Publicat per
Wiley
Publicat a
Aquaculture Nutrition
Citació
Pérez, José A., Ioannis E. Papadakis, Nikos Papandroulakis, Lorenzo Cruces, Efthimia Cotou, Enric Gisbert, Antonio Lorenzo, Constantinos C. Mylonas, and Covadonga Rodríguez. 2020. "The Ontogeny Of Greater Amberjack Digestive And Antioxidant Defence Systems Under Different Rearing Conditions: A Histological And Enzymatic Approach". Aquaculture Nutrition 26 (6): 1908-1925. doi:10.1111/anu.13128.
Número de l'acord de la subvenció
EC/FP7/603121/EU/Exploring the biological and socio-economic potential of new-emerging candidate fish species for the expansion of the European aquaculture industry/DIVERSIFY
Programa
Aqüicultura
Aquest element apareix en la col·lecció o col·leccions següent(s)
- ARTICLES CIENTÍFICS [2549]
Drets
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