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Dr. Marwa Mohamed Ali Ibrahim Saleh :: Publications: |
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| Title: | Possibility mitigation of cold stress in Nile tilapia under biofloc system by dietary propylene glycol: Performance feeding status, immune, physiological responses and transcriptional response of delta-9-desaturase gene
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| Authors: | Mohamed R Soaudy, Eman Y Mohammady, Mohamed A Elashry, Marwa M Ali, Nasr M Ahmed, Mahmoud H Hegab, Hoda AS El-Garhy, Ehab R El-Haroun, Mohamed S Hassaan |
| Year: | 2021 |
| Keywords: | Not Available |
| Journal: | Aquaculture |
| Volume: | 538 |
| Issue: | Not Available |
| Pages: | Not Available |
| Publisher: | Elsevier |
| Local/International: | International |
| Paper Link: | |
| Full paper | Marwa Mohamed Ali Ibrahim Saleh_paper2.pdf |
| Supplementary materials | Not Available |
| Abstract: |
This trial was conducted to study the ability of dietary propylene glycol to mitigate winter stress of Nile tilapia under biofloc system. Nile tilapia (average initial weight = 28.50 ± 0.25 g) were fed three isonitrogenous (257.75 g kg−1 crude protein) diets for 47 days in winter season. The first diet was free added with propylene glycol (PG) control. The other two diets were supplemented with 5 mL and 7.5 mL PG kg−1 diet, respectively. At the end of feeding trial, the highest survival rate (P < 0.05) was observed in tilapia fed the diet supplemented with 7.5 ml PG kg−1 diet. A linear response in weight gain (WG; P = 0.034), specific growth rate (SGR; P = 0.041) and protein efficiency ratio (PER; P = 0.038) of tilapia were found by the increase in the PG levels in diets. The supplemental diets with PG did not induce any significant differences (P > 0.05) on feed conversion ratio (FCR) and feed intake (FI) of fish. The activities of … |
