Efficiency of Dietary β-glucan Supplementation on Growth, Body Composition, Feed, and Nutrient Utilization in Juveniles of Pompano Fish (Trachinotus ovatus, Linnaeus, 1758)

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dc.contributor.authorHoang, D.H.
dc.contributor.authorLam, H.S.
dc.contributor.authorNguyen, C. V.
dc.date.accessioned2018-09-06T00:42:44Z
dc.date.available2018-09-06T00:42:44Z
dc.date.issued2018
dc.description.abstractAn 8-week experiment was conducted to examine the effect of increasing levels of dietary β-glucan on the growth performance, feed utilization, and body composition of juvenile pompano (Trachinotus ovatus). Pompano (mean initial weight, 6.45 g) were fed five diets containing five levels of β-glucan (D1 (control): 0%; D2: 0.05%; D3: 0.10%; D4: 0.20%; and D5: 0.40%. Results showed that growth performance, body composition, efficacy of feed and nutrient utilization were significantly affected by dietary β-glucan levels. After 8-weeks of feeding, weight gain, daily weight gain, specific growth rate, final body weight, coefficient of variation were highest in pompano fed 0.05% and 0.10% β-glucan in the diet (P ≤ 0.034), while growth of fish fed 0.2% and 0.4% β-glucan did not significantly differ compared to fish fed the control diet (P ≥ 0.170). Survival rate of juvenile pompano was not influenced by β-glucan supplement in the diet (P ≥ 0.383). In addition, feed utilization daily feed intake, feed conversion ratio, and feed conversion efficiency were significantly lower in fish fed diets supplemented with 0.01–0.10% β-glucan (P ≤ 0.027). In contrast, feeds supplemented with 0.2 to 0.4% β-glucan did not influence the feed utilization of pompano after 56 days of diet feeding (P ≥ 0.051). Protein was significantly higher in the flesh of pompano fed 0.05% to 0.10% β-glucan (P ≤ 0.001), while lipid content in fish decreased significantly with graded levels of β-glucan in the diet (P ≤ 0.044). After 56 days, protein efficiency ratio (PER), protein productive value (PPV), and fractional rates of protein growth (Kg), were significantly higher in fish fed diets supplemented with 0.05 -0.10% β-glucan (P ≤ 0.025).
dc.format.extent13 pages
dc.identifier.issn0792-156X
dc.identifier.urihttp://hdl.handle.net/10524/58326
dc.subjectpompano fish
dc.subjectβ-glucan
dc.subjectTrachinotus ovatus
dc.subjectgrowth
dc.subjectfeed utilization
dc.subject.lcshFish culture--Israel.
dc.subject.lcshFish culture
dc.titleEfficiency of Dietary β-glucan Supplementation on Growth, Body Composition, Feed, and Nutrient Utilization in Juveniles of Pompano Fish (Trachinotus ovatus, Linnaeus, 1758)
dc.typeArticle
dc.type.dcmiText

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Volume 70, 2018