Mirani Shahroodi, E. (2013) Comparison of early larval growth and survival rate of the Snow trout (Shizothorax Zarudnyi) feeding by rotifer, de-capsulated atresia cyst and artificial food. Masters thesis, University of Zabol.
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Abstract
The Purpose of this study was to study the effects of food type on growth and survival rate of the Snow trout (Shizothorax Zarudnyi) on 6 weeks. For this objective early larvae of Snow trout with average weight 4±0.21 mg and length 9±0.26 mm fed in complete random model in 4 treatment groups (starter food of common carp, rotifer, De-capsulated cyst of atresia and pond) with triplicate in Californian trough and ponds. Results indicated highest body weight gain (2046.83±75 mg), specific growth rate (%17.72±0.09), average daily gain (47.58±2.03 mg), final weight gain (2050±87.18 mg) and final length (60 ±2.0 mm) observed in pond treatment group that significantly differences with other treatments (p˃0.05). Highest survival rate (%75.7) observed in rotifer treatment group that significantly differences with other treatments (p˃0.05). Also on the base of chemical analysis of carcass fry in end culture period, highest protein (%16.22±0.17) and lipid (%5.28±0.04) observed in cyst and pond treatment groups respectively, that significantly differences with other treatments (p˃0.05). Finds of this study indicated that optimum growth indexes of the Snow trout observed in pond treatment group and highest survival rate obtained in rotifer treatment group.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | Snow trout (Shizothorax Zarudnyi), growth, artificial food, atresia cyst, survival rate |
| Subjects: | S Agriculture > SH Aquaculture. Fisheries. Angling |
| Depositing User: | admin admin1 admin2 |
| Date Deposited: | 27 Apr 2016 07:51 |
| Last Modified: | 27 Apr 2016 07:51 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/554 |
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