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:: Volume 25, Issue 4 (1-2017) ::
isfj 2017, 25(4): 27-39 Back to browse issues page
Evaluation of egg vitamins A and E content in rainbow trout (Oncorhynchus mykiss Walbaum, 1792) broodstock affected by different levels of synthetic and natural (Heamatococcus pluvialis) astaxanthin
M. Alizadeh * 1, M.H. Khanjani , R. Ansari , A. Rafieipour
Abstract:   (5791 Views)

In present research, effect of dietary astaxanthin levels in sources of synthetic and algal on vitamins A and E content of egg rainbow trout broodstock was investigated, totally for 120 days. It was considered seven groups consisting six treatments (T1-T6) in two different astaxanthin sources and control (C). According to experiment design, treatments were arranged as algal astaxanthin (Haematococcus pluvialis) in the three levels of 2.67, 3.55 and 8gr/kg food (T1, T2, T3); and synthetic astaxanthin in three levels of 40, 80 and 120mg/kg food (T4, T5, T6). Egg vitamins A and E content in obtained eggs from all treatments during spawning season was measured. The highest (280.88± 22.51 ng) and the lowest (147.82± 12.71ng) amount of vitamin A were observed in T2 and control group, respectively. The highest (19.71± 2.92µg) and the lowest (5.27± 0.51µg) amount of vitamin E were obtained in T3 and control group, respectively. By increasing level of astaxanthin in both sources of algal and synthetic, content of vitamin E in egg increased but the effect of algal source on these indices was more perfect. In general present study show that, feeding broodstock affected on quality content of egg, It also concluded that natural astaxanthin (Haematococcus pluvialis) for the reason that contains supplementary nutritious, is extraordinary preferable than synthetic astaxanthin to improve vitamins content of egg in rainbow trout.


 

Keywords: Rainbow trout, Astaxanthin, Haematococcus pluvialis, Vitamins A, E
Full-Text [PDF 697 kb]   (1505 Downloads)    
Type of Study: Research | Subject: تغذيه
Received: 2016/07/12 | Accepted: 2017/01/3 | Published: 2017/01/3
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Alizadeh M, Khanjani M, Ansari R, Rafieipour A. Evaluation of egg vitamins A and E content in rainbow trout (Oncorhynchus mykiss Walbaum, 1792) broodstock affected by different levels of synthetic and natural (Heamatococcus pluvialis) astaxanthin. isfj 2017; 25 (4) :27-39
URL: http://isfj.ir/article-1-1599-en.html


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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 25, Issue 4 (1-2017) Back to browse issues page

با کسب مجوز از دفتر کمیسیون بررسی نشریات علمی وزارت علوم، تحقیات و فنآوری مجله علمی شیلات بصورت آنلاین می باشد و تعداد محدودی هم به چاپ می رساند. شماره شاپای جدید آن ISSN:2322-5998 است

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