Effects of yucca, Yucca schidigera, extract and/or yeast, Saccharomyces cerevisiae, as water additives on growth, biochemical, and antioxidants/oxidant biomarkers of Nile tilapia, Oreochromis niloticus
Abdel-Tawwab, Mohsen; Mounes, Hossam A.M.; Shady, Sherien H.H.; Kareem Mohamed Ahmed;
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 the control ponds were 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 < 0.05)
by these water additives especially at the YE + yeast treatment. The growth performance of Nile tilapia was
significantly improved (P < 0.05) by these water additives and highest growth performance was observed in fish
treated with YE + yeast. In contrast, YE and/or yeast treatments did not affect levels of glucose, alanine
aminotransferase, and alkaline phosphatase. However, levels of serum total lipids, total protein, albumin, and
globulin were higher (P < 0.05) in fish treated with YE + yeast than those observed in the control fish. Adding YE
and/or yeast to ponds water significantly decreased levels of aspartate aminotransferase, uric acid, and creatinine
(P < 0.05) in fish, especially with the YE + yeast treatment. In addition, significant higher activities of
superoxide dismutase, catalase, and glutathione peroxidase, with significant lower malondialdehyde value, were
observed in fish treated with YE + yeast (P < 0.05). Overall, these results suggest that using 1.0 g/L of both YE +
yeast as water additives improved water quality by reducing pH and ammonia levels, which appears to improve
the fish growth and reduce the oxidative stress in Nile tilapia.
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 the control ponds were 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 < 0.05)
by these water additives especially at the YE + yeast treatment. The growth performance of Nile tilapia was
significantly improved (P < 0.05) by these water additives and highest growth performance was observed in fish
treated with YE + yeast. In contrast, YE and/or yeast treatments did not affect levels of glucose, alanine
aminotransferase, and alkaline phosphatase. However, levels of serum total lipids, total protein, albumin, and
globulin were higher (P < 0.05) in fish treated with YE + yeast than those observed in the control fish. Adding YE
and/or yeast to ponds water significantly decreased levels of aspartate aminotransferase, uric acid, and creatinine
(P < 0.05) in fish, especially with the YE + yeast treatment. In addition, significant higher activities of
superoxide dismutase, catalase, and glutathione peroxidase, with significant lower malondialdehyde value, were
observed in fish treated with YE + yeast (P < 0.05). Overall, these results suggest that using 1.0 g/L of both YE +
yeast as water additives improved water quality by reducing pH and ammonia levels, which appears to improve
the fish growth and reduce the oxidative stress in Nile tilapia.
Other data
| Title | Effects of yucca, Yucca schidigera, extract and/or yeast, Saccharomyces cerevisiae, as water additives on growth, biochemical, and antioxidants/oxidant biomarkers of Nile tilapia, Oreochromis niloticus | Authors | Abdel-Tawwab, Mohsen; Mounes, Hossam A.M.; Shady, Sherien H.H.; Kareem Mohamed Ahmed | Keywords | Water additives, Yucca schidigera, Yeast, Nile tilapia Growth, Water quality Welfare, Oxidative stress | Issue Date | 25-Feb-2021 | Publisher | Elsevier | Journal | Aquaculture | Volume | 533 | ISSN | 00448486 | DOI | 10.1016/j.aquaculture.2020.736122 |
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