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The present trial was conducted to investigate the effect of inclusion of dried periphyton in Nile tilapia diets on growth, digestive enzymes activity, haematological, oxidative stress and intestinal morphometric parameters. Five isoproteic (32%), isolipidic (5%) experimental diets were formulated, to comprise graded levels of dried periphyton (0, 2.5, 5, 7.5 and 10 g kg−1 diet). At the end of the...
A 3 × 2 factorial experiment was designed to evaluate the effect of different ratios of fish meal (FM): sunflower meal (SFM) with or without exogenous xylanase supplementation on growth, feed utilization, digestive enzymes activities, apparent digestibility, intestinal and liver morphology and chemical composition of Nile tilapia, Oreochromis niloticus. Three isonitrogenous (329.80 g/kg of crude protein)...
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