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Articles by Zeynabsadat Fazeli
Total Records ( 2 ) for Zeynabsadat Fazeli
  Zeynabsadat Fazeli , Ghobad Azari-Takami and Seyyed Amirmohsen Fazeli
  Nauplii Artemia urmiana was enriched with Thepax - a commercial product containing yeast cells of Saccharomyces cerevisiae. The Thepax-induced changes in biochemical parameters such as crude protein, fat, fiber, ash and energy were determined in the nauplii enriched at different times (6, 12 and 18 h) after hatching. To identify these changes, each group of nauplii (6, 12 and 18 h post-hatching) was enriched with 107 colony forming units (cfu mL-1) for a 24 h period. Enrichment with Thepax increased the ash content but decreased crude fat, protein and energy contents of Artemia urmiana nauplii (p<0.05). Thepax had no effects on crude fiber (p>0.05). As shown by the results of this study, it seems that probiotic enrichment with Thapax is favorable to improve the mineral (ash) content of Artemia urmiana nauplii. However, supplemented yeast probiotic with lipid emulsion and proteolytic enzymes is suggested for the nauplii enrichment.
  Zeynabsadat Fazeli and Ghobad Azari-Takami
  Artemia is a practical and suitable larvae food for both marine and fresh water crustaceans and fishes. Yeast probiotic enrichment of Artemia urmiana nauplii, found in Uromieh Lake of Iran, has not been documented in literature. The nauplii were enriched with Thepax, a commercial probiotic material containing yeast cells of Saccharomyces cerevisiae and the best time and concentration of the enrichment have been evaluated. To identify the optimal concentration of yeast cells, each group of nauplii (6-, 12- and 18-h after hatching) have been enriched with three treatments containing 104, 107 and 1010 colony forming units (CFU mL-1). In result, the maximum survival rate of nauplii was in concentration of 107 CFU mL-1 (p=<0.05). As the most yeast cells have been seen in the 6-h group (p=<0.05); the best time of enrichment was at 6 hours after hatching. In contrast to probiotic enrichment of other Artemia species, this study showed that the earlier enrichment of Artemia urmiana nauplii has better results.
 
 
 
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