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Abstract The current study was carried out to assess the effects of aqueous extract of yucca, Yucca schidigera (YE) and/or yeast, Saccharomyces cerevisiae, used as water additives on the performance… Click to show full abstract
Abstract The current study was carried out to assess the effects of aqueous extract of yucca, Yucca schidigera (YE) and/or yeast, Saccharomyces cerevisiae, used as water additives on the performance of Nile tilapia, Oreochromis niloticus. Fish (28–32 g) were randomly situated in 12 2-m3 concrete ponds at a density of 20 fish per m3 and assigned to four treatments in triplicates where ponds not received any additive (the control) as well as ponds received YE only, yeast only, or both YE + yeast. YE and/or yeast were added daily to ponds water at levels of 1.0 g YE/m3 and/or 1.0 g yeast/m3 for 8 weeks. Neither water temperature nor dissolved oxygen were significantly affected by YE and/or yeast treatment; but pH and NH3 levels were significantly reduced (P
Journal Title: Aquaculture
Year Published: 2020
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