نتایج جستجو برای: stomachand intestine length and weight parameters such as fish weight
تعداد نتایج: 17443075 فیلتر نتایج به سال:
length weight relationships of vimba vimba persa were studied. for this purpose 174 fish samples were collected by gill nets, beach seine and purse seine from march through june 2008 at two guilan fisheries catch stations of guilan located in anzali- kiyashahr regions. samples were immediately transferred to the laboratory of fish biology at university of guilan for further analyses. length, we...
abstract this study carried out on 194 fish (garra rufa) during the months of january to march at eight stations in dinvar river located at kermanshah province. during this study, 34 attributes and 11 traits count was measured geometric parameters and natural mortality and total amount 0.346, infinite length l∞=124.57 mm, growth factor k=0.29 and the length and weight of the exponential functio...
The aim of this study was to investigate the important biological characteristics. Including: age and growth of whitefish and environmental factors such as water temperature for wind, study of litter, catch rate of these valuable fish. This study was recorded and biometric in 4 whitefish stations and the length of the fork and its weight were recorded. In each station, the specific bed material...
this study has been carried out to investigate the effect of short-term divergent selection for 4-wk body weight on growth curve parameters and carcass components in japanese quail. quail lines utilized were two divergently selected for high (hw) and low (lw) 4-wk body weight (bw) as well as a line as control (c). the results of the study indicated that quails in hw line had heavier bw than tho...
asymmetric polyethersulfone (pes) microfiltration flat sheet membranes were composed by the phase inversion method (pim) and were used as supports. composite membranes were fabricated by coating silicone rubber as selective layer. effect of different concentrations of pes and pdms and different solvent such as nmp, dmf and dms effects as pes solvents and support thickness and different coagulat...
in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...
length-weight relationships and fecundity of 93 individual female acipenser persicus broodstocks were investigated. the specimens were caught during 2001-2005 from golestan, mazandaran and guilan provinces along the southern coast of the caspian sea. total length and weight of each fish was measured to the nearest 1cm and 100 g, respectively. age determination was carried out by using transects...
A 5 weeks study was conducted to determine the effects of different stocking density on hematological parameters of great sturgeon. Fish were cultured in duplicates of fiberglass tanks under stocking densities of 50, 75, 100 and 125 fish/m3 as T1, T2, T3 and T4 respectively. Based on the results significant increase (p<0.05) in total body weight and total length were related to low density grou...
Correlation between fish length, length and weight of otolith of sardine in the Southern waters of Iran still unknown. Therefore, because of commercial and ecological importance of Sardinella sindensis, relationships between fish length (total length), length and weight otolith was studied. In total, 123 Sind sardine were sampled by double –boat purse seiners from coastal waters of Jask from Oc...
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