EFFECT OF THE CHEMICAL PROPERTIES AND SOME POLLUTANTS IN FISH FARMS ON NURSING AND SURVIVAL PERFORMANCE OF LIZA RAMADA FRY | ||||
| Veterinary Medical Journal (Giza) | ||||
| Volume 52, Issue 3, July 2004, Page 437-444 PDF (2.44 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/vmjg.2004.369305 | ||||
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| Author | ||||
| A ABDEL-TAWAB* | ||||
| National Institute of Oceanography and Fisheries, Cairo | ||||
| Abstract | ||||
| Nursing and survival performance of fry mullet fish (Liza ramada) with initial size of 1.76 cm and 0.21 gm were studied under different chemical properties and some pollutant compounds (insecticides) during a period of 90 days. The chemical analysis and insecticide compounds were measured in ponds water and fish body of each farm and had different values. It was noticed that, the total weight gain, survival rate and specific growth rate of experimental fish reached their highest values (14.40 gm, 75% and 4.73 respectively) in the second fish farm where the water quality had its suitable values and the pollutant level was the lowest. Furthermore, the food conversion ratio and protein efficiency ratio. had their optimum values (1.50 and 4.29) in the same fish farm. While, the condition factor had its maximum value (1.70) in the third fish farm and its minimum value (1.10) in the second one. | ||||
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