نتایج جستجو برای: stomachand intestine length and weight parameters such as fish weight
تعداد نتایج: 17443075 فیلتر نتایج به سال:
comparison and grouping of 32 grape cultivars and genotypes by using 61 traits including; 5 phenological and vegetative characters, 41 traits related to fruit and amount of resveratrol in 15 parts of plant was done according to grape descriptor and related methods. according to the results some traits such as spikelet weight, berry color, length of peduncle, length of berry tail, weight and len...
this research is a study on indicators of listening instruction in iranian english as a foreign language (efl) curriculum at guidance school and high school educational levels. this thesis aims at determining: a) the indicators of listening instruction at guidance school and high school efl curriculum. b) the indicators of listening instruction in irans guidance school and high school efl curri...
The toxicity of cypermethrin (a pesticide) on fingerlings African catfish, Clarias gariepinus was investigate with emphasis histopathological effects. juvenile were exposed to 0, 1.0, 2.0, 3.0, 4.0 and 5.0ppb under experimental condition. growth, nutrient utilization feed parameters (Weight gain, Average Daily Weight Gain, Percentage Gain , Specific Growth Rate Feed Intake ,Feed Conversion Rati...
as a result of our survey in february 2011, a single female specimen of n. dipterygia was found in the tidal zone of chabahar bay and it was caught with a small deep net. the fish was transferred in a bucket to the fisheries laboratory of chabahar maritime university and kept in a salt water aquarium for further examinations. we witnessed the birth of 6 juveniles after 3 days. the female and he...
Tench an economically important species in Anzali Lagoon has experienced a sharp catch decline in recent years. The present study aims at examining certain biological traits of the fish in Anzali lagoon. A sample of 96 pieces of such fish were netted out through gillnet fishing during Jan 2006-July 2007. The findings showed incongruity in 11 out of 36 morphometric traits followed by 1 out of 1...
fecundity is one of the important indicators of reproduction biology in fishes especially in rearing and restocking management of endangered species such as sturgeon. the fecundity of stellate sturgeon (acipenser stellatus pallas, 1771) was studied in 50 specimens captured by gill net (mesh size= 100 mm) and seine net in different fishing areas along the southeastern part of the caspian sea fro...
During the early stages of white fish, survival rate is a very effective parameter on future fry’s sustainability, especially when they are going to be released into the natural habitat for restocking. The aim of this study is to define relationships between morphological and functional traits and the survival rate of the European white fish fry (Coregonus lavaretus) when they were fed with di...
During the early stages of white fish, survival rate is a very effective parameter on future fry’s sustainability, especially when they are going to be released into the natural habitat for restocking. The aim of this study is to define relationships between morphological and functional traits and the survival rate of the European white fish fry (Coregonus lavaretus) when they were fed with di...
this study was done on 4 and 5 years old great sturgeon cultured in brackish water ponds in bafgh salt water fisheries research station during one year. we examined somatic growth indices and effects of different diets on blood parameters and total length and weight. diet with constant protein (%40) and different energy levels (400,425,450,475 cal/100g) were fed to 74 pieces of great sturgeons ...
This study was performed to evaluate the efficacy of two levels of dietary oregano essential oil (OEO) on growth performances, biochemical, hematological parameters, and intestinal histomorphology in Japanese quail. A total number of 99 quail chicks were divided into three groups (33 quails per group): Control, OEO 150 mg kg-1, and OEO 300 mg kg-1 treated groups for 42 day...
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