Impact of sodium lactate as a growth promoter on the hepatopancreas of the freshwater prawn Macrobrachium rosenbergii (de Man, 1879) | ||
| Egyptian Journal of Aquatic Biology and Fisheries | ||
| Article 1, Volume 18, Issue 1, January 2014, Pages 1-11 PDF (420.34 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejabf.2014.2190 | ||
| Authors | ||
| Magdy Khalil1; Setaita Sleem1; Ashraf Goda2; Madlin Habashy2; Hanan Shtewi3 | ||
| 1Zoology Dept., Fac. Science, Ain Shams University, Cairo, Egypt. | ||
| 2National Institute of Oceanography and Fisheries, Cairo, Egypt. | ||
| 3Zoology Dept., Fac. Science, Ain Shams University, Cairo, Egypt | ||
| Abstract | ||
| In the present study, histological changes of hepatopancreas were studied in response of using sodium lactate as a growth promoter to the freshwater prawn Macrobrachium rosenbergii. The prawns were fed on diet with five concentrations of sodium lactate (1, 1.5, 2, 3 and 4g/kg of diet) as food supplement for 103 days. Results showed that R and B-cells were very sensitive to different diets. Slight changes were apparent in the hepatopancreas in the 1% concentration. While, at 1.5 % concentrations, swollen of the cells and enlarged of the vacuoles were observed. Regarding the concentrations of 2%, more accumulation of vacuoles was exhibited. Increase of vacuoles in the R-cells, abnormalities of B-cells, atrophy of the F-cells and pyknosis in the hepatopancreatic cells at 3 & 4% were observed. This investigation and other results of the detailed study of the same authors concluded that the best using concentration of sodium lactate is 1%, because it has mild histological effects and at the same times, it has the best promotion for the growth rate of M. rosenbergii. | ||
| Keywords | ||
| Macrobrachium rosenbergii; sodium lactate; organic acids; acidifiers; hepatopancreas | ||
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