Eimeria  sp.  is  one  of  the  most  important  parasites  that  cause  very  high  economic  loss  in 
poultry farms in Egypt. It causes a disease called coccidiosis.  This study aimed to detect the 
prevalence of  Eimeria  species in chicken and detection of its pathological effect  within the 
intestinal  mucosa.  The  present  study  investigate  the  prevalence  of  Eimeria  sp.  in  chicken 
through  fecal  examination  and  the  diagnosis  was  based  on  direct  fecal  sample  examination 
(unstained  wet  mount  technique)  and  concentration  techniques,  followed  by  sporulation  of 
unsporulated  oocyst  for  identification  of  Eimeria  spp.  and  finally  studying  the  pathological 
effect of this parasite in the intestinal mucosa of infected chicken. The total prevalence rate of
Eimeria spp. was (66%). The incidence rate in Broiler chickens was (70%) and in Balady was 
(58%).  The highest percent of infection was at the age of (15-30) day  (54.3% in Broiler and 
72.4% for Balady), and the disease was more prevalent in winter than in summer. The species 
that  were  detected  are  E.acovullina  (the  highest  prevalence  rate)  followed  by  E.tenella, 
E.necatrix  followed  by  E.mitis  (lowest  prevelance  rate).  These  results  indicate  that  the 
coccidiosis  is  a  serious  parasitic  disease  that  effect  on  the  poultry  production  in  Egypt  and 
control measures should be put in consideration to overcome this disease. 
Keyswords: Eimeria - prevalence- coccidiosis- oocyst

Gastrointestinal  parasites  have  a  direct  effect  on  the  health  of  equines.  This  study 
was  conducted  to  determine  the  prevalence  and  significance  of  gastrointestinal 
parasites  of naturally infected horses in Luxor Governorate, Egypt. A total of 100 
horse fecal samples were collected during the period from March - 2020 to February 
–  2021 from different ages, sexes and stables. All of these samples were examined 
by  different  fecal  examination  techniques  including  (direct  wet  mount, 
sedimentation and flotation techniques).  The present study investigate  that  the  total 
prevalence  of  infected  horses  was  15%.  There  is  a  relationship  between  the  GIT 
infection and the age of the horse. The highest percent of infection was recorded by 
Strongylus vulgaris  9 % followed by  Parascaris equorum  5%, while the percent of 
infection by  Balantidium coli was 1% in infected horses. It consequence that horses 
are  highly  susceptible  to  Strongylus  irrespective  of  gender  and  age  or  even 
deworming. Control measures should be put in consideration to totally overcome the 
parasitic infection.
Keywords:  Gastrointestinal  parasites,  Parascaris  equorum,  Strongylus  vulgaris, 
Balantidium coli.

Cystic echinococcosis has been considered one of the major parasitic zoonoses which is associated with severe economic losses. The present study was undertaken to investigate the occurrence, organ distribution, cyst fertility, and viability of cystic echinococcosis in slaughtered camels and cattle from various abattoirs in Assiut Governorate, Egypt. The work also involved morphological, morphometric, and molecular identification of the parasite. The occurrence of hydatid cysts was investigated in total number of 100 lungs of camels and 574 liver and lungs of cattle admitted to three slaughterhouses at Assiut Governorate, Egypt. Moreover, several individual variable factors, including organ involvement, age, sex, and hydatid cyst characteristics, were studied to identify their possible association with the occurrence of the disease. Genomic DNA was extracted from the hydatid cysts, followed by molecular identification of the parasite through amplification of ribosomal DNA internal transcribed spacer (ITS) regions. Hydatid cysts were found in 6 camels (6%) out of 100 inspected camels, while 5 hydatid cysts (0.87%) were detected in a total number of 574 cattle examined. The parasite was detected exclusively in lungs of camels, while lungs were the main organ infected by the parasite in cattle and one hydatid cyst was found in the liver (0.17%). In camel, 66.7, 16.65, and 16.65%of detected cysts were fertile, sterile, and calcified, respectively, while in cattle, these percentages were 60, 20, and 20%, respectively. None of the studied variable factors were significantly associated with the occurrence of the disease in camels, with the exception that all cysts were found in the lung. Conversely, we found a significant association (P < 0.05) between the age and sex of the slaughtered cattle and the occurrence of hydatid cysts. In this respect, the rate of infection was higher in female cattle and those cattle more than 5 years (P < 0.05). The morphological, morphometric, and molecular studies confirmed the presence of the parasite. Taken together, our results concluded that camels and cattle play a potential role in maintaining the transmission cycle of this zoonotic parasite.

afaf a abdel wareth m s hasanein  assiut  med j  vol 15 no 6 november 1991