scholarly journals Distribution of Eudiplozoon nipponicum (Monogenea, Diplozoidae) in farmed common carp (Cyprinus carpio, L. 1758) from aquaculture facilities in Macedonia

2021 ◽  
Vol 37 (2) ◽  
pp. 127-137
Author(s):  
Dijana Blazhekovikj-Dimovska ◽  
Stojmir Stojanovski

A total of 958 specimens of common carp from the most significant and larger cyprinid aquaculture facilities in Macedonia, including fish farms and reservoirs, were examined for parasitological investigations. Eudiplozoon nipponicum was found on gills in 121 specimens of common carp in spring, summer and autumn, with a prevalence of 10.67 %, and a mean intensity of 2.55. Our findings of E. nipponicum in common carp from aquaculture are first recorded in Macedonia.

2021 ◽  
Vol 79 (4) ◽  
pp. 157-162
Author(s):  
Dijana Blazhekovikj-Dimovska ◽  
Stojmir Stojanovski

Abstract A total of 958 specimens of farmed common carp Cyprinus carpio from eight of the most significant and largest cyprinid aquaculture facilities in Macedonia (pond and cage culture systems) were examined for parasitological investigation for three years. The following parasite species of the genus Dactylogyrus were identified: Dactylogyrus extensus, Dactylogyrus minutus and Dactylogyrus anchoratus. The highest prevalence was determined for D. extensus (38.8%), followed by D. minutus (7.9%) and D. anchoratus (2.8%). The highest mean intensity was determined for D. extensus (6.2), followed by D. minutus (4.7) and D. anchoratus (3.8). By seasons, the highest prevalence (16.5%) was recorded for D. extensus in winter, while the lowest (0.6%) for D. minutus in autumn. The highest mean intensity (8.0) was also determined for D. extensus in winter, and the lowest (1.9) for D. minutus in spring.


2021 ◽  
Vol 10 (19) ◽  
pp. 427-439
Author(s):  
Dijana Blazhekovikj – Dimovska ◽  
Stojmir Stojanovski ◽  
Stoe Smiljkov

The aim of this study was to determine the distribution of parasites of the class Cestoda in farmed common carp from the cyprinid aquaculture facilities in Macedonia. The representatives of the class Cestoda occur most often during the winter (in 3.47% of examined fish), followed by spring (1.80%) and autumn (1.73%). They haven`t been identified during the summer. 20 fish out of 958 totally examined were infected with cestodes, with a mean intensity of 6.40, and a prevalence of 1.76%. In this study, the following parasite species were established: Caryophyllaeus fimbriceps, Bothriocephalus opsariichthydis and Ligula intestinalis (plerocercoid). Based on the total number of fish examined from cyprinid aquaculture facilities in Macedonia, the highest prevalence from the class Cestoda is determined by Bothriocephalus opsariichthydis (1.04%), followed by Caryophyllaeus fimbriceps and Ligula intestinalis with 0.55% each. The highest mean intensity with parasites of the class Cestoda is determined by Caryophyllaeus fimbriceps (9.40), followed by Bothriocephalus opsariichthydis (6.30) and Ligula intestinalis (3.60). The records of Caryophyllaeus fimbriceps in farmed common carp in the present study are considered as the first records for Macedonian aquaculture.


2017 ◽  
Vol 30 (1) ◽  
pp. 32-37
Author(s):  
Pola J. Nader ◽  
Nasreen M. Abdulrahman

This experiment was conducted for 70 days on 165 common carp Cyprinus carpio fingerlings which were brought from local fish farms located in Daqooq, Haftaghar, Al-Tameem province. Fishes were distributed among experimental tanks with mean initial weight of 24.09 gm. They were pre-acclimated to laboratory conditions for 21 days prior to the feeding trials. The experiment was conducted by using 15 plastic tanks (100 L) representing five treatments with three replicates. Each tank was stocked with 11 fishes. Treatments included 0, 2.5, 5.0, 7.5 or 10 gm grape byproduct/ kg diet. The result showed that red blood cell (RBC) data of the control group was significantly higher than other treatments. Hemoglobin of fishes in groups 2.5 and 10 gm/ kg diet was significantly different from other treatments. Mean corpuscular hemoglobin (MCH) values for 0.0, 5.0 and 10 gm/kg groups were significantly different, so mean corpuscular volume (MCV) values showed significant differences resulted from 0.0, 5.0, 7.5 and 10 gm/ kg diet compared to 2.5 gm/ kg diet group. The white blood cells (WBC) were significantly different in 2.5, 5.0 and 7.5 gm/ kg diet. Granulocyte percentages obtained in all treatments were significantly different from control. Lymphocyte percentages were significantly different in all treatments compared to 10 gm/ kg diet group. The Monocytes were significantly different in 2.5, 7.5 and 10 gm/ kg groups.


Author(s):  
Hussein Takheal Hussein

       84 samples of common carp Cyprinus carpio that bird in cages of fishes  birding in AlForat River Al-Mussayab was examined for a period of January until June 2017 .     The fishes was examined for the presence  of Ichthyophthirius multifiliis parasite on the skin, Fins and gills.    The percentage and total mean intensity infection%14.28, 5.6، % 20.23, 6.2,% 27.38 11.5 respectively the monthly changes was Studied and the part of the fish body was chosen according to sex and we recording the highest percentage of infection from April 53.33% and highest intensity in August were the percentage was 21.6%.      There was no recording of differences in chosen of site of infection and also in sex and host either in skin, Fins and gills.


2019 ◽  
Vol 31 (3) ◽  
pp. 675-680
Author(s):  
Dijana Blazhekovikj - Dimovska

The aim of this study was to determine the protozoan parasites in common carp (Cyprinus carpio, L. 1758) from the largest cyprinid aquaculture facility in Macedonia, located in Pelagonia region (Bitola). This study was carried out by seasons, in a period of three years. A total of 212 specimens of common carp were examined and 134 fish (63.20%) were infected with protozoan parasites. Representatives of Protozoa were most commonly occurred during the spring (in 58.27 % of the fish examined), than in winter (55.21 %), summer (39.07 %) and the lowest in autumn (35.64 %).In common carp from this cyprinid fish farm the presence of 4 protozoa species was established: Myxobolus müelleri, Myxobolus encephalicus, Thelohanellus nikolskii and Trichodina sp. The mean intensity with protozoan parasites in common carp was 3.60, while the prevalence 10.20 %.


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