Evaluation of different copper sources as feed additives in Nile tilapia diets: Growth, body indices, hematological assay, plasma metabolites, immune, anti-oxidative ability, and intestinal morphometric measurements

Résumé

Abstract The goal of the current study was to compare how well Nile tilapia, Oreochromis niloticus, utilized copper (Cu) from bulk and nano sources as a dietary copper supplement by evaluating fish growth, body indices, hematological assays, plasma metabolites, immune and anti-oxidative abilities, and intestinal morphometric measurements. The basal diet served as a control, with no Cu added, whereas the experimental diets were formed by adding bulk-Cu and nano-Cu to the basal diet to keep Cu levels at 3 and 6 mg kg− 1, respectively, in both Cu sources. Tilapia (9.10 ± 0.014 g) were fed the control diet and four experimental diets for 12 weeks. In conclusion, fish-fed Cu-supplemented diets outperformed those fed the control-free Cu diet in terms of growth, feed utilization, body indices, fillet nutrient composition, hematological assay, plasma metabolites, immune, antioxidant activities, and intestinal morphometry, with the best weight gain (WG), flesh Cu contents, hematocrit% (Hct), white blood cell counts (WBCs), total protein (TP), albumin (AL), and globulin. These findings suggest that Cu in the form of nanoparticles is more useful than bulk Cu for satisfying the dietary Cu requirements of Nile tilapia.

Citer ce document

Accès au document

Ce document est hébergé sur son dépôt institutionnel d'origine.

Auteur(s)

Statistiques

Consultations : 1

Téléchargements : 0