نتایج جستجو برای: fish tissues
تعداد نتایج: 295260 فیلتر نتایج به سال:
F. psychrophilum is the causative agent of Bacterial Cold Water Disease (BCW) and Rainbow Trout Fry Syndrome (RTFS). To date, diagnosis relies mainly on direct microscopy or cultural methods. Direct microscopy is fast but not very reliable, whereas cultural methods are reliable but time-consuming and labor-intensive. So far fluorescent in situ hybridization (FISH) has not been used in the diagn...
The aim of this study was to evaluate the effect of different levels of organic and mineral sources of selenium on the intestinal morphology and also histologically changes in liver tissues of juvenile rainbow trout for 60 days. For this purpose, 1080 healthy fry fish (50±2.8 g average body weight) were randomly divided into 3 groups, including organic selenium (0.15, 0.30, 0.45, 0.60 mg. kg-1)...
Background and purpose: There is an increasing interest towards consumption of aquatic products, therefore, the health of aqua ecosystems is highly important. Heavy metal pollution in fish is a global concern due to its bioaccumulation potential, toxicity and persistence in food chain. This study investigated the concentration of heavy metals (cadmium, lead, chromium, copper, and zinc) in the g...
Colonization of host tissues is a first step taken by many pathogens during the initial stages of infection. Despite the impact of bacterial disease on wild and farmed fish, only a few direct studies have characterized bacterial factors required for colonization of fish tissues. In this study, using live-cell and confocal microscopy, rainbow trout skin epithelial cells, the main structural comp...
The method of staining bones is considered as one of the adopted means in studying the tissues and bones as well as the organs by which a comparison between fish species can be made as of Potthoff (Potthoff, 1984). The main objective of this study is to identify the tissue and skeleton differences between some species of fish which can enhance the taxonomic studies other than the taxonomic diff...
Concentrations of Ni, V, Pb and Cu were determined in bottom sediments and liver, gills and fillet of Euryglossa orientalis and Chirocentrus nudus along the Bahrekan Bay in the Northwest part of the Persian Gulf in Iran. Sediment samples and fish species were collected during winter 2013 and spring 2014. Heavy metal analysis was performed by atomic absorption spectrophotometer. Results showed t...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید