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:: Volume 26, Issue 3 (9-2017) ::
isfj 2017, 26(3): 65-75 Back to browse issues page
Impact of stocking density on whiteleg shrimp (Litopenaeus vannamei, Boone, 1931) culture in brackish water of the Caspian Sea
S.M.Vahid Farabi * 1, Abbas Matinfar1 , Aliakbar Salehi1 , Mansour Sharifian1
1- TAT
Abstract:   (4646 Views)

In this study, the effects of different primary stocking densities (45, 50, 55 and 60 shrimp/m2) of whiteleg shrimp postlarvae (PL12) were evaluated on the growth and survival rates. Brackish water (10.52±0.43 psu) was provided from the Caspian Sea. The experiments were performed in 12 circular concrete ponds with a sandy bed (area: 78m2) with four treatments and three replications for each treatment. The culture period was 75 days and the average water temperature was 27.4±1.79°C. The results showed that different stocking densities caused statistical significant difference in growth and survival rates among various experimental treatments (P<0.05). Increasing the stocking density resulted in decreasing the amounts of weight gain, survival rate (SR), specific growth rate ( SGR ) and the average daily growth ( ADG ). However, FCR was significantly different among treatments (P<0.05) and was not dependent on the primary stock density of postlarvae. The highest growth rate ( SGR =11±0.04 and ADG =0.25±0.01 gr/day/ind.), production (43.6±3.3 kg shrimp in 78 m2) and survival rate were observed in the lowest density treatment (45 shrimp/m2). 
 

Keywords: Whiteleg shrimp (Litopenaeus vannamei), Brackish water, Caspian Sea, Density
Full-Text [PDF 701 kb]   (4231 Downloads)    
Type of Study: Research | Subject: تكثير و پرورش
Received: 2016/10/6 | Accepted: 2017/10/28 | Published: 2017/10/28
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Farabi S, Matinfar A, Salehi A, Sharifian M. Impact of stocking density on whiteleg shrimp (Litopenaeus vannamei, Boone, 1931) culture in brackish water of the Caspian Sea. isfj 2017; 26 (3) :65-75
URL: http://isfj.ir/article-1-1652-en.html


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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 26, Issue 3 (9-2017) 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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