Abstract— This work aimed to evaluate the effect of substitution of fish proteins by powder of Volvariella volvacea, an edible mushroom of Côte d’Ivoire, in the growing rats. The gradual substitution of fish proteins by mushroom proteins leads to a decrease in the growth performance of rats. With 75 % and 100 % mushroom in diets, body weight gain, food efficiency and protein efficiency ratio are negative. These diets do not affect the average weight of some organs (heart, liver and spleen), except for the kidney average weight that increases as mushroom levels increase in diets. Likewise, the average weight of abdominal fat decreases and disappears as the mushroom incorporation rate increases. The incorporation of mushroom powder into the control diet provokes changes in the mean value of some serum metabolites and electrolytes. The popular belief that states that mushrooms proteins can substitute meat proteins is not valid. Mushrooms can be proposed as dietetic regime for obese people.
Keywords— Rats, Volvariella volvacea, growth, metabolites.
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