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<p>Evaluation of two freshwater macrophytes, <em>Ceratophyllum demersum</em> and <em>Potamogeton amplifolius</em>as feed ingredients for Nile tilapia (<em>Oreochromis niloticus</em>) fingerlings</p>

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Title Statement <p>Evaluation of two freshwater macrophytes, <em>Ceratophyllum demersum</em> and <em>Potamogeton amplifolius</em>as feed ingredients for Nile tilapia (<em>Oreochromis niloticus</em>) fingerlings</p>
 
Added Entry - Uncontrolled Name Balkhashera, A
El-Sayed Ali, T
El-Sayed, A F M
 
Uncontrolled Index Term Fermentation, Feed utilization, Macrophytes, Nile tilapia
 
Summary, etc. <p class="Abstract"><span lang="EN-GB">The present study was carried out to evaluate the potential of two common freshwater macrophytes (<em>Ceratophyllum demersum </em>and <em>Potamogeton amplifolius</em>) as feed ingredients for Nile tilapia fingerlings, in two consecutive experiments. The first experiment investigated the use of raw, dried <em>C. demersum </em>and<em> P. amplifolius</em> as sources of energy in the diets of fingerlings.<strong> </strong>The macrophytes were incorporated in 6 isonitrogenous and isocaloric diets at four levels as a replacement of dietary wheat bran. The test diets were fed to triplicate groups, stocked in 140 L culture aquaria in a recirculating system, three times a day to satiation, for 45 days. The results showed that control, macrophyte-free diet produced significantly improved growth rates and feed utilization efficiency than macrophytes-based diets. </span></p> <p class="Abstract"><span lang="EN-GB">In Experiment 2, fermented <em>C. demersum </em>and<em> P. amplifolius </em>were incorporated into six isonitrogenous and isocaloric diets. The diets were fed to triplicate groups of fingerlings (35 g) for 45 days. Growth rates and feed utilization efficiency of fish fed with fermented <em>P. amplifolius</em> at 33 % and 66 % inclusion level were not significantly different from fish fed the control diet. At 100 % inclusion level, fish performance was significantly reduced. On the other hand, fermented <em>C. demersum</em> produced extremely poor performance, compared to raw <em>ceratophyllum. </em>In conclusion, the present results indicated that fermentation improved the quality of <em>P. amplifolius</em>; but not <em>C. demersum</em>. </span></p>
 
Publication, Distribution, Etc. Indian Journal of Geo-Marine Sciences (IJMS)
2022-09-30 00:07:36
 
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http://op.niscair.res.in/index.php/IJMS/article/view/66069
 
Data Source Entry Indian Journal of Geo-Marine Sciences (IJMS); ##issue.vol## 50, ##issue.no## 01 (2021)
 
Language Note en