Toxicity of the Herbicide Propanil on Oreochromis niloticus Fingerlings
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چکیده
منابع مشابه
Effect of Dietary α-Cellulose Levels on the Growth Parameters of Nile Tilapia Oreochromis niloticus Fingerlings
Three purified diets were formulated using fish meal, soya bean, wheat flour, palm oil, minerals and maltose. The carbohydrate in the diets was increased from 5 to 15% by changing the cellulose content to study the effect of dietary carbohydrate level on the growth parameters of Nile tilapia Oreochromis niloticus. The protein and the lipid contents were kept constant in all the diets. The resul...
متن کاملHeterogeneous growth fingerlings of the Nile tilapia Oreochromis niloticus: effects of density and initial size variability.
In this study, the effect of initial heterogeneity of weight and density on heterogeneous growth (HetG) evaluated by the coefficient of the variation of weight in the young Nile tilapia Oreochromis niloticus of the territorial species was tested. Fish were maintained in a glass aquarium (8 and 2 L of water) with two levels of initial heterogeneity of weight: low and high, under two density cond...
متن کاملAssessing the dietary amino acid requirements of tilapia, Oreochromis niloticus fingerlings
In an earlier study Oreochromis niloticus fingerlings (initial weight, 4.31±0.27 g) were fed diets with dietary protein levels, ranging from 7.30% 44.24% dry matter (dm) for eight weeks. Using growth performance and food conversion ratio, the dietary protein requirement of the fingerlings was estimated at 33.32% dietary protein (dm). In this study the dietary essential amino acid requirements f...
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To investigate the potential of extensive net cage culture for Nile tilapia (Oreochromis niloticus) fingerlings, an experiment was conducted in net cages suspended in a fertilized pond. Mixed-sex population of Nile tilapia with an average initial body weight of 0.065 g was used to stock in experimental cages. Four treatments; non added-substrate without supplemental feeding (NSNF), non added-su...
متن کاملHistopathological Effects of Roundup, a Glyphosate Herbicide, on Nile tilapia (Oreochromis niloticus)
The acute toxicity of Roundup, a glyphosate herbicide, to Nile tilapia, Oreochromis niloticus, was investigated with emphasis on histopathological effects. The values of 24-h, 48-h, 72-h and 96-h LC50 for young tilapia were 17.5, 17.1, 16.9 and 16.8 ppm, respectively, and those for adult tilapia were 46.9, 44.4, 40.0 and 36.8 ppm, respectively. They indicated that adult fish were more tolerant ...
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ژورنال
عنوان ژورنال: Journal of Fisheries and Aquatic Science
سال: 2012
ISSN: 1816-4927
DOI: 10.3923/jfas.2013.233.237