Mohammad Forouhar Vajargah; Seyed Aliakbar Hedayati
Volume 5, Issue 1 , September 2016, , Pages 63-70
Abstract
This research was conducted to study the effects of different light colors on growth indices (Growth Rate and Specific Growth Rate), Feed Conversion and Survival Rate in Tiger barb (Barbus tetazone) fish for 6 weeks. 120 fish with an average weight 75 ±0.02 were respectively divided in ...
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This research was conducted to study the effects of different light colors on growth indices (Growth Rate and Specific Growth Rate), Feed Conversion and Survival Rate in Tiger barb (Barbus tetazone) fish for 6 weeks. 120 fish with an average weight 75 ±0.02 were respectively divided in four groups of white, natural, green and blue colors (with three replicates for each treatment). Fish fed twice a day with Biomar commercial food. Results showed that growth indices (GR, SGR) and FCR were significantly different in varied light colors (P
M. Bayati; R. Patimar; M. Farhangi; M. Farhangi; M. Forouhar Vajargah
Volume 3, Issue 4 , July 2015, , Pages 67-78
Abstract
Abstrac The aim of this study was to determinate the effect of trout farm sewage on fecundity and diversity of macro invertebrate benthoses with some biological indices. This study was done on the Marber River in Semirom city, the southwest area of Isfahan province. Sampling was took place in five stations ...
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Abstrac The aim of this study was to determinate the effect of trout farm sewage on fecundity and diversity of macro invertebrate benthoses with some biological indices. This study was done on the Marber River in Semirom city, the southwest area of Isfahan province. Sampling was took place in five stations on summer of 2012, monthly using a Surber sampler (30.5cm×30.5 cm). Sampling in each station was done in three points (edges and middle of the river). Captured samples were fixed in 4% formalin and were taken to the laboratory. In laboratory animals were collected with a sieve of 500 microns in diameter springs to assort and identify to the least level possible (families and genera). In this study, several biological parameters such as: Abundance, Biomass, Similarity, Shannon-Wiener, EPT/ Chironomidae, Margalef richness, Hylsnhvf, BMWP index and ASPT index was used. Eventually 20 families, with 10 orders, 7 classes and 5 phyla were identified.
