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:: Volume 5, Issue 4 (1-2019) ::
3 2019, 5(4): 35-43 Back to browse issues page
Comparison of Koi carp larvae growth performances fed with Urmia Lake Artemia (Artemia urmiana) nauplii from the decapsulated and non-decapsulated cysts
Hossein Emadi, Mohsen Kiadarbandesari, Amin Avazeh , Mahmoud Hafezieh, Pezhman Hosseini Shekarabi Seyed, Amar Salehifarsani
Abstract:   (540 Views)
In this study, number of 180 koi fish larvae (0.2 g average weight) were fed with Lake Urmia Artemia nauplii in two treatments including nauplii from the decapsulated and non-decapsulated cysts for  60 days. The results showed that growth parameters and survival rate were significantly improved in koi fish fed with nauplii from decapsulated cyst(P< 0.05). Also, the fish larval weight was increased in nauplii from decapsulated (252.04%) compared to non-decapsulated (234.07%). FCR was 1.03 and 0.88 for the nauplii from the non-decapsulated and decapsulated cysts, respectively. The minimal survival rate was observed at encapsulated treatment (73%) than decapsulated treatment (84.1%). The results of nutritional value of Artemia Nauplii showed that that nauplii from a newly hatched freshly weighed the encapsulated cyst contained 9.8% protein and 1.8% fat which was lower than the nauplii from the decapsulated cysts (P< 0.05). Also, the hatching rate of cysts in decapsulated treatment (89.08%) was more than encapsulated (76.73%) samples (P< 0.05). In conclusion, decapsulated artemia cysts can significantly improve the growth performances and survival rates of koi larvae as an ornamental fish.
Keywords: Artemia urmiana, cyst, decapsulation, Koi fish
Full-Text [PDF 476 kb]   (106 Downloads)    
Type of Study: Research | Subject: Special
Received: 2018/10/27 | Accepted: 2018/12/22 | Published: 2018/12/22
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emadi H, Kiadarbandesari M, avazeh A, Hafezieh M, Hosseini Shekarabi P, Salehifarsani A. Comparison of Koi carp larvae growth performances fed with Urmia Lake Artemia (Artemia urmiana) nauplii from the decapsulated and non-decapsulated cysts. 3. 2019; 5 (4) :35-43
URL: http://ornamentalaquatics.ir/article-1-183-en.html


Volume 5, Issue 4 (1-2019) Back to browse issues page
مجله علمی-ترویجی آبزیان زینتی Journal of Ornamental Aquatics
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