نتایج جستجو برای: Astronotus sp
تعداد نتایج: 120303 فیلتر نتایج به سال:
in this study, we have investigated the effects of mix of tomato (solanum lycopersicum) & carrot) daucus carota ( and red bell pepper )capsicum annuum( as a natural pigment source and astaxanthin as synthetic pigment sources on the skin colour of cichlid fish (astronotus ocellatus sp., agassiz, 1831), which are generally white with red patches in the dorsal skin. the fish were fed diets con...
A set of cytological studies performed in the utricle and saccule of Astronotus ocellatus (Teleostei, Percomorphi, Cichlidae) identified two basic types of hair cells and others with some intermediate characteristics. This paper reports on applying the same techniques to the saccule of Carassius auratus (Teleostei, Otophysi, Cyprinidae) and demonstrates similar types of hair cells to those foun...
Histopathology provides a rapid method to detect effects of irritants and pathogens in different organs and it can be considered as the indicator for abnormal condition for fish environment. The present study was initiated to record the histopathological lesions of gill and skin associated with external parasites in two common aquarium fish, Oscar (Astronotus ocellatus) and Discus (Symphysodon ...
OBJECTIVE This pilot study aimed to verify the impact of the awareness tool for safe and responsible driving (OSCAR) on older adults' (1) interest, openness, and knowledge about the abilities and compensatory strategies required for safe driving; (2) awareness of changes that have occurred in their own driving abilities; and (3) actual utilization of compensatory strategies. METHODS A preexpe...
Nephrocalcinosis is a chronic disorder which may be resulted in decrease in growth rate and finally mortality in severe condition. Nephrocalcinosis is defined as the presence of calcification in the kidney. A total number of 80 ornamental fishes of different species included of discus fish (Symphysodon discus), angelfish (Pterohyllum sp.), goldfish (Carassius auratus) and oscar fish (Astronotus...
The neotropical cichlid genus Astronotus currently comprises two valid species: A. ocellatus Agassiz, 1831 and A. crassipinnis Heckel, 1840. The diagnosis is based on color pattern and meristics counts. However, body color pattern is highly variable between regions and the meristic counts show a considerable overlap between populations differing in color patterning. They do not represent true s...
Adaptation or acclimation to hypoxia occurs via the modulation of physiologically relevant genes, such as erythropoietin, transferrin, vascular endothelial growth factor, phosphofructokinase and lactate dehydrogenase A. In the present study, we have cloned, sequenced and examined the modulation of the LDH-A gene after an Amazonian fish species, Astronotus crassipinis (the Oscar), was exposed to...
در این تحقیق تاثیر استفاده از رنگدانه های موجود در مواد گیاهی همچون فلفل دلمه قرمز (capsicum annuum) ، گوجه (solanum lycopersicum) و هویج (daucus carota) که دارای بتاکاروتن طبیعی بوده و رنگدانه مصنوعی آستاگزانتین بر روی ماهی اسکار سفید (astronotus ocellatus sp., agassiz,1831) مورد مطالعه قرار گرفت. ماهیان با مواد غذایی حاوی ترکیبات فوق به مدت 60 روز تغذیه شدند. میزان کارتنوئید موجود در ماهیان ت...
In this study, we have investigated the effects of mix of Tomato (Solanum lycopersicum) & Carrot) Daucus carota ( and red Bell pepper )Capsicum annuum( as a natural pigment source and astaxanthin as synthetic pigment sources on the skin colour of cichlid fish (Astronotus ocellatus sp., Agassiz, 1831), which are generally white with red patches in the dorsal skin. The fish were fed diets contain...
در این تحقیق تاثیر استفاده از رنگدانه های موجود در مواد گیاهی همچون فلفل دلمه قرمز (Capsicum annuum) ، گوجه (Solanum lycopersicum) و هویج (Daucus carota) که دارای بتاکاروتن طبیعی بوده و رنگدانه مصنوعی آستاگزانتین بر روی ماهی اسکار سفید (Astronotus ocellatus sp., Agassiz,1831) مورد مطالعه قرار گرفت. ماهیان با مواد غذایی حاوی ترکیبات فوق به مدت 60 روز تغذیه شدند. میزان کارتنوئید موجود در ماهیان ت...
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