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پایگاه اطلاعات جهاد دانشگاهی (SID) 



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:: Volume 17, Issue 4 (2018) ::
IJFS 2018, 17 Back to browse issues page
Effect of different salinity level on spawning, fertilization, hatching and survival of common carp, Cyprinus carpio (Linnaeus, 1758) in semi-artificial environment
A. Malik *1 , G. Abbas2 , A. Jabbar3 , S. Sajjad Shah3 , A. Ali Muhammad4
1- Centre of Excellence in Marine Biology, University of Karachi, Karachi, Pakistan; , malik.cemb@gmail.com
2- Centre of Excellence in Marine Biology, University of Karachi, Karachi, Pakistan;
3- Directorate of Fisheries Sindh, Livestock & Fisheries Department, Govt. of Sindh, Pakistan.
4- Coastal Development and Fisheries Department, Govt. of Balochistan.
Abstract:   (4196 Views)
The effects of various salinity levels among (0‰, 5‰, 10‰, 15‰, and 20‰) for successful breeding of common carp, Cyprinus carpio were investigated. The duration of study was 75 days. Ripe broodstock (30) having a mean weight (male 1027±2.4g and female 1084.8±23g) were selected and stocked into spawning tanks (2000 L). The ratio among male and female was 2:1. They were fed with commercial floating pelleted feed having 35% crude protein with 2% body weight twice a day. Broodstock were injected with ovaprim hormone 0.5 mg kg-1 female and male 0.2 mg kg-1 respectively, after successful spawning broodstock were removed from spawning tanks. The results showed that the highest fecundity, fertility, hatchability and survival of fry were obtained on salinity of 0‰ to 10‰ and significantly decreased on 15‰ and 20‰. The eggs per gram body weight were also recorded in all treatments and highest eggs were obtained, i.e. 45-60 per female on salinity of 0‰-10‰.  Water temperature (22.4±0.2°C), dissolved oxygen (6.5±0.2 mg L-1), pH (7.2±0.2) and ammonia (less than 0.03±0.06 mg L-1) were monitored throughout the study period. Water quality parameters remained within the recommended range. Our results suggest that common carp, C. carpio may give maximum eggs up to 10 ‰ salinity with 81% survival of the fry.
Keywords: Common carp, Breeding, Ovaprim, Salinity, Semi-natural
Full-Text [PDF 638 kb]   (5670 Downloads)    
Type of Study: Orginal research papers |
ePublished: 2018/09/25
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Malik A, Abbas G, Jabbar A, Sajjad Shah S, Ali Muhammad A. Effect of different salinity level on spawning, fertilization, hatching and survival of common carp, Cyprinus carpio (Linnaeus, 1758) in semi-artificial environment. IJFS 2018; 17 (4) :790-804
URL: http://jifro.ir/article-1-3624-en.html


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Volume 17, Issue 4 (2018) Back to browse issues page
Iranian Journal of Fisheries Sciences Iranian Journal of Fisheries Sciences
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