The effect of Palangan fish farms on water quality of Sirvan River was investigated using physicochemical and biological indicators from January 2015 to June 2015. Five stations were determined including 1) before the fish farm 2) after the fish farm effluent 3) sub-branch 4) 100 meter after fish farm effluent and 5) 1000 meters after fish farm effluent. EC showed significant differences in dif...

this study compared the different effects of form-focused guided planning vs. meaning-focused guided planning on iranian pre-intermediate students’ task performance. the study lasted for three weeks and concentrated on eight english structures. forty five pre-intermediate iranian students were randomly assigned to three groups of guided planning focus-on-form group (gpfg), guided planning focus...

This study was aimed to evaluate the single and combined effects of sodium diformate as an acidifier and bacilli probiotics (Bacillus subtilis and B. licheniformis) on intestinal histomorphology of juvenile Salmo trutta caspius or 60 days. Hundred juvenile fish weighing 12. 6±1. 4 g were divided into 4 different treatments, including control, 0. 4g B. subtilis+ B. licheniformis /kg diet, 0. 5g ...

Considering the development of dense aquaculture systems and the necessity of using herbs as growth stimulants, The present investigation is in order Effect of different levels of turmeric on diet on blood indicators and histopathological examination of liver, kidney and intestine in Juvenile Sevryuga(Acipenser stellatus Pallas). The duration of experience period was 60 days. For this purpose, ...

The purpose of this study was to investigate the effects of aliphatic sodium butyrate on some blood parameters and growth factors in carp fingerling with an average weight of 10 g. This experiment was conducted for 8 weeks by using four different diets with three replications including: control (without supplement) and three levels of sodium butyrate (0.25, 0.5 and 1%). Feeding was performed fo...

One of the limitations of aquaculture is the supply of fish meal needed for the aquaculture industry, but the use of plant items instead of fish meal contain anti-nutrients such as non-starch polysaccharides, which is one of the main limitations of using plant items in the diet of carnivorous fish. The present study investigated the in vivo and in vitro enzymes of alpha-amylase, cellulase, xyla...

terms of address as an important linguistics items provide valuable information about the interlocutors, their relationship and their circumstances. this study was done to investigate the change route of persian address terms in the two recent centuries including three historical periods of qajar, pahlavi and after the islamic revolution. data were extracted from a corpus consisting 24 novels w...