Effects of different sampling intervals on apparent protein and energy digestibility of common feed ingredients by juvenile oscar fish (Astronotus ocellatus) - doi: 10.4025/actascianimsci.v34i2.10541
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چکیده
منابع مشابه
Effect of different level of spirulina meal on growth performance, feed efficiency, body composition and apparent digestibility of Oscar fish (Astronotus ocellatus)
The main objective of this study was to determine the effects of diets containing 0, 2.5, 7.5% spirulina platensis meal on growth performance, survival rate, skin pigmentation and digestibility of carotenoids in Oscar fish (Astronotus ocellatus). 288 Oscar fish with mean body weight of 10.73±0.09 randomly divided in to 24 aquariums with 45 liters’ water capacity. The experimental treatments wer...
متن کاملFeed transit and apparent protein, phosphorus and energy digestibility
24 A study was conducted with Senegalese sole (Solea senegalensis) to determine the 25 apparent digestibility coefficients (ADCs) of protein, phosphorus and energy in 26 practical feed ingredients. The digestible energy (DE) content was also evaluated. 27 Test ingredients were anchovy fishmeal, solvent-extracted soybean meal, corn 28 gluten and wheat meal. Due to their low cohesion, sole faeces...
متن کاملSocial isolation and aggressiveness in the Amazonian juvenile fish Astronotus ocellatus.
We tested the effect of social isolation on the aggressiveness of an Amazonian fish: Astronotus ocellatus. Ten juvenile fishes were transferred from a group aquarium (60 x 60 x 40 cm) containing 15 individuals (without distinguishing sex) to an isolation aquarium (50 x 40 x 40 cm). Aggressiveness was tested by means of attacks on and displays toward the mirror image. The behavior was video-reco...
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this study compared the different effects of form-focused guided planning vs. meaning-focused guided planning on iranian pre-intermediate students’ task performance. the study lasted for three weeks and concentrated on eight english structures. forty five pre-intermediate iranian students were randomly assigned to three groups of guided planning focus-on-form group (gpfg), guided planning focus...
15 صفحه اولThe Naturally Occurring Accommodative Response of the Oscar, Astronotus ocellatus, to Visual Stimuli
Observation of the naturally-occurring accommodative response of a highly visual teleost species provides the opportunity to study its stimulus-response accuracy. A video recording system, linked to a computer digitizing program, was used to measure accommodative changes in lens position in the oscar, Astronotus ocellatus, in response to known food stimuli. The largest lens deviations occurred ...
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ژورنال
عنوان ژورنال: Acta Scientiarum. Animal Sciences
سال: 2012
ISSN: 1807-8672,1806-2636
DOI: 10.4025/actascianimsci.v34i2.10541