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:: Volume 19, Issue 2 (7-2010) ::
isfj 2010, 19(2): 77-84 Back to browse issues page
Effects of fish meal replacement by silkworm pupae on growth, survival and body chemical composition of rainbow trout (Oncorhynchus mykiss)
M Tavoli , M Shakoori * 1, A.A Motallebi , H Gholipoor Nozari , S Naseri
Abstract:   (9330 Views)

Silkworm pupae meal is a non-conventional animal protein feedstuff. It is the by-product after the silk thread has been wound off from the cocoon. To investigate the effects of animal protein on growth and survival of rainbow trout (Oncorhynchus mykiss), a sixty-day feeding experiment was conducted. Four replacement levels (0, 5, 10 and 15 percent) of silkworm pupae meal were compared using a completely random design. We used 360 juvenile rainbow trout (average weight 55±3.42g) divided into 4 groups and 3 replications, each containing 30 trout for 60 days. Sampling for nutritional effects was carried out every 10 days and at the end of the experiment, weight gain, feed conversion ratio, specific growth rate, protein and efficiency ratio were compared which showed no significant differences (P>0.05) among the treatments. Total length and survival rate were not significantly affected in the treatment groups. The highest percentage of carcass protein and the lowest percentage of carcass fat belonged to the control treatment. Our fmdings showed that silkworm pupae  meal  could replace 15% of fish meal diet in rainbow trout culture.

Keywords: Nutrition, Feed conversion ratio, Protein, Growth, Rainbow trout
Full-Text [PDF 331 kb]   (1742 Downloads)    
Type of Study: Research | Subject: تغذيه
Received: 2016/11/19 | Accepted: 2016/11/19 | Published: 2016/11/19
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Tavoli M, Shakoori M, Motallebi A, Gholipoor Nozari H, Naseri S. Effects of fish meal replacement by silkworm pupae on growth, survival and body chemical composition of rainbow trout (Oncorhynchus mykiss). isfj 2010; 19 (2) :77-84
URL: http://isfj.ir/article-1-1699-en.html


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Volume 19, Issue 2 (7-2010) 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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