| Titles |
|
English :
|
PROTOZOAL INFECTIVITY IN TREATED AND UNTREATED OREOCHROMIS NILOTICUS WITH TESTOSTERONE HORMONE WITH SPECIAL REFERENCE TO RESIDUAL HORMONAL LEVELS IN SERUM AND TISSUES
|
|
Arabic :
|
الأصابة بالطفيليات الأولية فى اسماك البلطى المعالجة و الغير معالجة بهرمون التستوسترون مع التأكيد الخاص على متبقيات الهرمون فى سيرم وأنسجة الأسماك
|
|
| Abstract |
Three different groups of Oreochromis nilotcus (30, 60 and 100 days old) were taken from private fish farm used sex hormone for monosex production fish and also the same age groups from untreated male fish as control. The investigation of fish revealed that present of 4 ectoparasitic protozoan species (Trichodina, Chilodonella sp., Icthyoboda necatrix and Myxobolus sp.) and 3 endoparasitic protozoan species (Trypanosoma sp, Eimeria sp. and Myxbolus sp.).
The total rate of parasitic protozoan infection in 3 groups hormonally produced monosex O. niloticus were (80%, 60% and 100%) and in control were (zero%, 52% and 68%) in three groups, respectively. The results of testosterone concentrations in serum were significantly increased in groups II (60 days old) and group III (100 days old) (2.5 ± 0.2 ng/ml and 2.7 ± 0.24 ng/ml, respectively) compared with controls (1.04 ± 0.2 ng/ml and 1.09 ± 0.2 ng/ml, respectively). Testosterone level were significantly increased in tissues of groups II and group III (2.01 ± 0.1 ng/g and 2.15 ± 0.19 ng/g, respectively) compared with control (0.83 ± 0.1 ng/g and 0.99 ± 0.2 ng/g) respectively.
|
| Publication year |
2001
|
| Organization Name |
Animal Health Research Institute (AHRI)
|
| Country |
Egypt
|
| serial title |
المجلة المصرية للعلوم التطبيقية
|
| Volume |
Volume
. 12 N0.
|
| Department |
Fish Diseases
|
| Author(s) from ARC |
|
| Agris Categories |
Animal diseases
|
AGROVOC
TERMS |
Oreochromis niloticus.
Residues.
Testosterone.
|
| Publication Type |
Journal
|