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 پایگاه استنادی علوم جهان اسلام (ISC)

پایگاه اطلاعات جهاد دانشگاهی (SID) 

بانک نشریات کشور (مگیران)




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:: Volume 9, Issue 1 (2010) ::
IJFS 2010, 9 Back to browse issues page
Comparison of Soybean meal and Cottonseed meal variety Pak (CSMP) on growth and feed using in rainbow trout (Oncorhynchus mykiss)
S. Dadgar * , Che Roos Bin Saad , Abdul Razak Alimon , Mohd Salleh Kamarudin , M. Nafisi Bahabadi
, shdadgar@ifro.ir
Abstract:   (26697 Views)

  Apparent digestibility coefficients (ADC) were calculated by using chromic oxide in the diet as an indigestible marker to evaluate the Iranian Cottonseed meal (CSMP) . Then, the nutritional value of cottonseed meal ( ‍ CSM) as soybean meal (SBM) substitute in quality low cost rainbow trout (Oncorhynchus mykiss) ration was investigated. In this study, six formulated feeds consisting different levels of CSMP (0, 20, 40, 60, 80, 100%) substitution of SBM were fed to a total of 540 rainbow trout with initial mean body weight of 50 ± 5 g. Fish were randomly stocked into eighteen 100L fiberglass tanks with 30 fish per tank and 3 tanks per diet and fed to apparent satiation 3 times a day and 7 days per week for 60 days. The ADC of CSMP and SBM were measured as of dry matter, 62.7 and 69.2% crude protein, 82.4 and 87.3% fat, 66.6 and 78.5%, respectively. After an 8 week feeding trial, the average weight gain of fish fed with diets 1 to 6 was: 100.6, 102, 102.9, 103.3, 103.9, and 103.4g, respectively. Average feed conversion ratio (FCR) of fish fed diets 1 to 6 was measured as of 1.28, 1.31, 1.31, 1.27, 1.29, and 1.25, respectively. For all six treatments, the survival percentage was more than 99%. ADC value for most nutrients of CSMP was different from those of SBM. Weight gain, specific growth ratio (SGR), daily weight gain (DWG) and survival rate were not significantly different (P>0.05) for fish fed with CSMP diets compared to the control diet but the differences of FCR were significant among different diets (P<0.05). In the feasibility study, complete replacement of SBM by CSMP revealed to be economic and based on the gossypol analysis, total gossypol levels was not observed for toxicity on liver of fish fed by CSMP, indicating the possibility of total replacement of SBM by CSMP in rainbow trout fed formulations.

Keywords: Rainbow trout, Cottonseed meal (CSMP), Gossypol, Soybean meal (SBM), Growth
Full-Text [PDF 215 kb]   (6039 Downloads)    
Type of Study: Orginal research papers | Subject: aquaculture
Received: 2010/07/18 | Accepted: 2015/09/13 | Published: 2015/09/13
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Dadgar S, Che Roos Bin Saad, Abdul Razak Alimon, Mohd Salleh Kamarudin, Nafisi Bahabadi M. Comparison of Soybean meal and Cottonseed meal variety Pak (CSMP) on growth and feed using in rainbow trout (Oncorhynchus mykiss). IJFS 2010; 9 (1) :49-60
URL: http://jifro.ir/article-1-22-en.html

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Volume 9, Issue 1 (2010) Back to browse issues page
Iranian Journal of Fisheries Sciences Iranian Journal of Fisheries Sciences
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