دراسة تشخيصية وجزيئية للإصابة بالكيسانية المذنبة رقيقة العنق لطفيلي Taenia hydatigena في الأغنام والماعز المجزورة في محافظة كربلاء المقدسة

Identification and molecular study for the infection by the larval stage cysticercus tenuicollis of Taenia hydatigena parasite in sheep and goats at abattoir of holy Karbala governate.

  The current study was conducted to investigate the incidence of the infection with the thin-necked caesarean of the parasite Taenia hydatigena in sheep and goats that slaughtered in the holy province of Kerbala by using the study of polymerase chain reaction technique (PCR) and the relationship of prevalence ratios with some epidemiological criteria.
The study aimed at diagnosing the incidence of sheep and goat that slaughtered in the holy governorate of Kerbala for the first time in Iraq with a field epidemiological survey of the prevalence of infection rates and studying the effect of some epidemiological criteria such as sex, age & months of years on the infections rates of intermediate hosts (sheep and goats)
The study was conducted for six months from July 2017 to December of the same year. During the study, 480 samples of the T. hydatigenia larvae of sheep and goats were collected in Karbala governorate 40 samples per month from each type of animal. The samples were then transferred to the post Graduate Laboratory in the Faculty of Veterinary Medicine / University of Kerbala to complete laboratory work on them.
The results of the study showed that the highest incidence of sheep in September was 42.5%, while the highest incidence of parasite in goats was in August and reached 45%, while the lowest proportion of sheep in the December that reached to 30.0%. While in goats, the infection rate decreased in July, November and December, reaching 35%.
The percentage of infection in males and females of sheep and goats varied between %65.92% – %42.43 % in sheep males and between 28.57% to 34.0% in goat males. In females, the incidence ranged from 63.3%. – 33.2 % and between 33.33% – 50.00% in sheep and goats, respectively.
The percentage of infection by age was the proportion of sheep and goats less than a year between 25% – 39.22 % and 28.0% – 41.67 % respectively, and sheep and goats the largest of the year had rates ranging between 49.13 % – 34.31% and 36.36 % and 50%, respectively.
The results of the study showed that there were no significant differences between the age, gender, and month of study.
The study also showed that the genotype of the fixed area sequence in the mitochondrial DNA is similar to the genetic patterns compared with the present study, especially the Asian ones.
The results of the present study indicate that the incidence of caesarean infection was high in September and August, while those rates decreased in the months of October and the second of the same year, with no effect of the age and age of the animal on parasitic infection rates as well as high rates of infection in goats More than sheep.