Effect of dietary supplementation of Padina astraulis (Hauk, ۱۸۸۷) extract on biochemical response and digestive enzyme activities of grey mullet, Mugil cephalus (Linnaeus, ۱۷۵۸)
Publish place: Iranian Journal of Fisheries Sciences، Vol: 19، Issue: 4
Publish Year: 1399
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JIFRO-19-4_035
تاریخ نمایه سازی: 1 اسفند 1400
Abstract:
This research aimed to assess the effect methanol extract from Padina astraulis (Hauk , ۱۸۸۷) on biochemical response and digestive enzyme activities in grey mullet, Mugil cephalus (Linnaeus, ۱۷۵۸). A control diet without and three other empirical regimens were prepared with the addition of of P.astraulis extract (PE diet) at the incorporation levels of ۵, ۱۰ and ۱۵ g kg-۱ diet, respectively. Three hundred sixty grey mullet with an introductory mean weight of ۰.۸۲ g were randomly dispersed into twelve fish tanks and fed twice a day (۰۹:۰۰ and ۱۷:۰۰) for ۶۰ days. After ۶۰ days of the feeding trial, no significantly different was noticed in terms of survival rate between control and the groups supplemented with PE (p>۰.۰۵). Dietary PE significantly increased serum total protein, globulin levels and amylase, lipase and protease enzyme activities in treated fish (p<۰.۰۵). Moreover, there was considerable decline (p<۰.۰۵) in cholesterol, glucose and triglyceride levels in those fish which received PE diet over the control. The current research illustrates the appropriateness of P. astraulis extract as a novel dietary additive in grey mullet diet for improving metabolism of lipid and carbohydrate and enhancing digestive enzyme activities in grey mullet.
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Authors
P. Akbary
Fisheries Group,Faculty of Marine Sciences, Chabahar Maritime University, Chabahar, Iran
N. Shahraki
Fisheries Group,Faculty of Marine Sciences, Chabahar Maritime University, Chabahar, Iran
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