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Title

DETERMINATION OF THE FREQUENCY OF INFESTATION OF (PENAEUS INDICUS AND LITOPENAEUS VANNAMEI) WITHIN INTERNAL PROTOZOAN GREGARINE IN BANDAR ABBAS, SOUTHERN IRAN

Writers

MOKHAYER Z.

Pages

 Start Page 165 | End Page 170

Abstract

 One of the dominant species of bandar abbas  is (Penaeus indicus) which its propagation is in addition to problems of  propagation attention to environmental, nutritional, health, diseases, parasitics INFESTATION and etc. are important.In this titled : Determination of the frequency of  INFESTATION of (Penaeus indicus and Litopenaeus  vannamei)  within internal protozoan  GREGARINE  , PENAEUS INDICUS samples randomly by traditional fishing with bottom trawl fishing located in the CIRIk (2013) was prepared and samples LITOPENAEUS VANNAMEI SHRIMP farms of North Tyab prepared (2013) and sent to the laboratory and the Wet mount preparation method of the digestive tract was investigated.Frequency of examined SHRIMPs according the times of the catch as following: From 100 specimens of the Litopenaeus  vannamei  examined in the year 2013, none  were infected with the protozoan in trophozoite or Gametocystic state. From 100 specimens of the PENAEUS INDICUS SHRIMP only 31 specimens were infected with GREGARINE. 13 individual were female and 18 of them were  male. 31 of these SHRIMPs were infected with parasitic GREGARINE as trophozoite or Gametocystic state or both of them, thus their prevalence of infection were 31 percent(trophozoite state: 54.83% and Gametocystic state: 64.51%). Frequency of INFESTATION Trophozoite was 10.29 and Gametocyst was 72.45.It appears that the frequency of INFESTATION with GREGARINE increase according to the length of the SHRIMP. In the length group of 114-133 mm it was 50 percent and in the  length group of 164-185 mm it was 77 percent.

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