دراسة تأثير الإصابة بالديدان الشريطية على لحوم الحيوانات المذبوحة و صحة الإنسان في محافظة إب

الملخص EN

This study carried out on three aspects, the first one was carried on inspection of meat of slaughtered animals in central abattoir in Ibb at the time from 2004 to 2007 in order to estimate the percentage of the effect of tap worm infestation on meat either due to total contamination or due to partial condemnation.

The second of human infection by the development stage of tapeworms and the last aspect filed studies on the affection of tapeworm on sheep and how deals with such problems.

Our results denoted that, the carcasses examined at central Ibb abattoir a total condemnation due to tap worms infestation was higher in 2005 whereas the results were 1.54, 0.68, 0.37, and 0.23 % for years 2005, 2007, 2006 and 2004 respectively, while partial condemnation including different body oranges came as following, the lungs condemnation considered the highest ratio as it represented by 19.66, 16.73, 15.53 and 8.47 % for years 2005, 2004, 2007 and 2006 respectively.

But the condemnation of liver including high percent in 2005 it reaches to 11.92, 10.76, 8.97 and 5.71 % for years 2005, 2007, 2004 and 2006 respectively.

While the condemnation of head, heart and Kidneys showing lower ratio and ranged from 0.30% to 0.087%.

The developmental stages of the tap worms in this study came in three forms, first in a viable cysts which seen embedded in the tissue of the carcasses as a small cyst filled with clear fluid in which the scolex float out, the second type is degenerated cysts which contain a fibrous tissue capsule and contain with fluid and scolex of the tap worms, but this type not dangerous, the third type is casemated or calcified cysts.

From the economic point of view, it clear from the obtained results at what extend the losses in meat of slaughtered animals are lost due to heavy tap- worms infestation which may be reached to number of millions Rials.

The second aspect of this study carried out on 300 head of native sheep infested by tap-worms during the period from September to December 2007, whereas the morbidity rat reach to 80% and the mortality rate was 9.33%.

The third aspect of this study carried out on the laboratory recoding analysis that present at Al-thowra hospital in Ibb governorate, which denoted the present of infestation by tap-worms between people and students.

From the previous study, the periodical examination of the farm animals and man for the presence of tap-worms by examination of feces and treatment of any animals or persons that showing positive results is very Important to avoid the economic losses among the slaughtered animals as a results of such infestation.

In addition, the killing on the stray dogs and cats around abattoirs is very necessary.